TWI610736B - Highly exothermic feeder sleeves and manufacturing method thereof - Google Patents

Abstract

A high-heat riser insulation sleeve, the material composition thereof comprises: a main raw material and a binder. The main raw material includes various aluminum powders, oxidizing agents, oxidation promoters, heat insulating materials, and heat generating materials. Each of the aluminum powders has an aluminum content of 65% to 95%. The oxidizing agent includes iron oxide, nitrates, and manganese dioxide, and the oxidation promoter includes cryolite powder. Insulation materials include floating beads, hollow alumina or perlite. The heating material includes metal tantalum powder. The heat resistant material includes tantalum carbide powder. The niobium carbide powder has a niobium carbide content of at least 85% or more. The binder includes methanol, water, decyl alcohol, urea formaldehyde resin, liquid phenolic resin, and a coupling agent. A method of manufacturing a high-heat riser insulation jacket is also provided.

Description

High-heat riser insulation sleeve and manufacturing method thereof

The invention relates to a riser insulation sleeve and a manufacturing method thereof, and in particular to a riser insulation sleeve with high efficiency and high heat generation and a manufacturing method thereof.

During the metal casting process, the molten metal is poured into the cavity of the mold model defining the shape of the casting. Since the molten metal shrinks as it solidifies, it causes shrinkage, which causes unacceptable defects in the final casting. This is a well-known problem in the foundry industry. The problem can be solved by using a riser that is mounted on the mold model during the formation of the casting. The riser provides an additional volume that communicates with the cavity so that molten metal also enters the riser. During the solidification of the molten metal, the molten metal in the riser will flow into the cavity to compensate for the shrinkage of the casting. Using the riser sleeve instead of the general sand riser can effectively increase the shrinkage rate, thereby reducing the volume of the riser and reducing the size of the riser. Material, increase the yield.

In general, the riser sleeve material can be placed in a mold and the mold heated to cure the riser sleeve material thereby forming a riser sleeve. On the other hand, it is also necessary to wait for the formed riser sleeve to be hardened before performing the demolding step to obtain the riser sleeve. Therefore, in the process of manufacturing the riser sleeve, the heating of the mold process may ignite the combustible material inside, which is prone to safety and the problem of waiting for hardening time to cause poor yield.

The invention provides a riser insulation sleeve with high efficiency and high heat generation and a manufacturing method thereof, which can improve the feeding rate, the safety of the process and the output of the casting in the manufacturing process.

The invention provides a high-heat riser insulation cover, the material composition thereof comprises: a main raw material and a binder. The main raw materials include various aluminum powders, oxidizing agents, oxidation promoters, heat insulating materials, heat generating materials, and tantalum carbide powder. Each of the aluminum powders has an aluminum content of 65% to 95%. The oxidizing agent includes iron oxide, nitrates, and manganese dioxide, and the oxidation promoter includes cryolite powder. Insulation materials include floating beads, hollow alumina or perlite. The heating material includes metal tantalum powder. The heat resistant material includes tantalum carbide powder. The niobium carbide powder has a niobium carbide content of at least 85% or more. The binder includes methanol, water, decyl alcohol, urea formaldehyde resin, liquid phenolic resin, and a coupling agent.

In an embodiment of the invention, the aluminum powder comprises a first aluminum powder, a second aluminum powder, and a third aluminum powder. The first aluminum powder has an aluminum content of 65% to 75% and an average particle diameter of 50 mesh to 300 mesh. The second aluminum powder has an aluminum content of greater than or equal to 95% and an average particle diameter of from 50 mesh to 150 mesh. The third aluminum powder has an aluminum content of greater than or equal to 95% and an average particle diameter of from 200 mesh to 400 mesh.

In an embodiment of the invention, the content of the first aluminum powder is 5% by weight to 25% by weight, and the content of the second aluminum powder is 1% by weight to the total weight of the main raw material. 16% by weight, the third aluminum powder is contained in an amount of from 1% by weight to 16% by weight.

In an embodiment of the present invention, the content of the iron oxide is 5% by weight to 25% by weight, and the content of the sodium nitrate is 0.1% by weight to 10% by weight based on the total weight of the main raw material. The content of the manganese dioxide is 1% by weight to 10% by weight, the content of the cryolite powder is 0.1% by weight to 10% by weight, and the content of the floating beads is 5% by weight to 20% by weight, the metal ruthenium The content of the powder is from 5% by weight to 25% by weight, and the content of the cerium carbide powder is from 10% by weight to 30% by weight.

In an embodiment of the present invention, the binder is used as a total weight, wherein the content of the methanol is 10% by weight to 40% by weight, and the content of the water is 5% by weight to 35% by weight. The content of the sterol is 10% by weight to 30% by weight, the content of the urea-formaldehyde resin is 10% by weight to 30% by weight, and the content of the liquid phenolic resin is 20% by weight to 40% by weight, the coupling agent The content is from 0.1% by weight to 5% by weight.

In an embodiment of the invention, the riser sleeve is the total weight, wherein the content of the main raw material is 70% by weight to 95% by weight, and the content of the binder is 5% by weight to 30% weight%.

The invention provides a method for manufacturing a high-heat riser thermal insulation sleeve, the steps of which are as follows. Provide the main raw material. The main raw material includes various aluminum powders, oxidizing agents, oxidation promoters, heat insulating materials, and heat generating materials. A binder is provided. The binder includes methanol, water, decyl alcohol, urea formaldehyde resin, liquid phenolic resin, and a coupling agent. The primary material and the binder are mixed to form a riser sleeve. The total amount of the main raw material is 70% by weight to 95% by weight, and the content of the binder is 5% by weight to 30% by weight based on the total weight of the riser sleeve. Perform a core molding step. A demolding step is performed and dried to obtain the riser sleeve.

In an embodiment of the invention, the step of mixing the main raw materials is as follows. The aluminum powder, iron oxide, manganese dioxide, floating beads, metal cerium powder, and cerium carbide powder are mixed and continuously stirred for 1 minute to 5 minutes to form a first mixture. Sodium nitrate is added to the first mixture to form a second mixture. The cryolite powder is added to the second mixture and stirring is continued for 15 minutes to 20 minutes to form a third mixture.

In an embodiment of the invention, the step of mixing the binder is as follows. The methanol is mixed with the water to form a mixture A. The sterol is added to the mixture A to form a mixture B. The liquid phenolic resin is added to the mixture B to form a mixture C. The urea formaldehyde resin is added to the mixture C to form a mixture D. The coupling agent was added to the mixture D and stirring was continued for 10 minutes to 20 minutes to form a mixture E. Acetic acid was added to the mixture E and stirring was continued for 10 minutes to 20 minutes to bring the pH between 7.5 and 8.5 to form a mixture F.

In an embodiment of the invention, the performing the core forming step comprises: placing the material of the riser sleeve into the core machine. The material of the riser sleeve is injected into the mold having a hollow cavity by the core shooter. The process pressure of the core shooting step is from 0.3 MPa to 0.6 MPa.

In an embodiment of the invention, the performing the core forming step does not require heating of the mold, so it is safer than the prior art and has a high production speed.

In an embodiment of the invention, the time from the end of the shot forming step to the step of performing the demolding is from 1 minute to 2 minutes.

Based on the above, the material of the riser sleeve of the present invention has the characteristics of high efficiency and high heat generation, and can not only suppress the heat dissipation of the molten metal at the riser during casting, but also prolong the solidification time of the molten metal at the riser, thereby improving the The ratio of the mouth to the casting. In addition, the high-heat riser insulation cover material of the present invention further comprises an adhesive, which can cure the riser insulation sleeve in the manufacturing process without heating the mold, and can perform the demoulding step without waiting for the riser insulation sleeve to be hardened. In turn, the safety of the process and the production of the riser sleeve are improved.

In addition, the high-heat riser insulation sleeve of the present invention also includes tantalum carbide powder, which can increase the thermal conductivity, so that the combustion is rapid and the heat is evenly distributed to the entire riser sleeve during the casting, thereby achieving the effect of fully supplementing.

The above described features and advantages of the invention will be apparent from the following description.

In the present specification, the range represented by "a numerical value to another numerical value" is a schematic representation that avoids enumerating all the numerical values in the range in the specification. Therefore, a particular numerical range is recited, which is equivalent to the disclosure of any numerical value in the numerical range and the numerical range defined by any value in the numerical range, as if the This smaller range of values is the same. For example, the description of the "content of 10% by weight to 30% by weight" is equivalent to the disclosure of the "content of 15% by weight to 25% by weight", regardless of whether other values are listed in the specification.

The embodiment provides a high heat riser insulation sleeve material, the material comprising: a main raw material and a binder. The content of the main raw material is 70% by weight to 95% by weight, and the content of the binder is 5% by weight to 30% by weight based on the total weight of the riser insulation material.

In detail, the main raw material includes various aluminum powders, an oxidizing agent, an oxidation promoter, a heat insulating material, a heat generating material, and a heat resistant material. The aluminum powder includes a first aluminum powder, a second aluminum powder, and a third aluminum powder. The first aluminum powder has an aluminum content of 65% to 75% and an average particle diameter of 50 mesh to 300 mesh. The second aluminum powder has an aluminum content of greater than or equal to 95% and an average particle diameter of from 50 mesh to 150 mesh. The third aluminum powder has an aluminum content of greater than or equal to 95% and an average particle diameter of from 200 mesh to 400 mesh. The mesh refers to the mesh size of a standard sieve, which can be used to indicate the particle size or size of the raw material particles. In general, the larger the mesh, the finer the particles. The term described herein refers to the characteristics specified by the Taylor Standard (TYLER). Further, the first aluminum powder is mixed with the second aluminum powder in an amount of 10% by weight to 35% by weight.

In an embodiment, the oxidizing agent may include iron oxide, iron oxide, sodium nitrate, nitrate, and manganese dioxide, manganese oxide, wherein the iron oxide is contained in an amount of 5% by weight to 25% by weight. The iron oxide has an average particle diameter of 100 mesh to 300 mesh; the sodium nitrate content is 0.1% by weight to 10% by weight; and the manganese dioxide is contained in an amount of 1% by weight to 10% by weight. The reaction sequence is as follows: 2NaNO ₃ ─>ΔH─>2NaNO ₂ +3O ₂ ; 3MnO ₂ ─>ΔH─>Mn ₃ O ₄ +O ₂ ; 4Al+3MnO ₂ ─>2Al ₂ O ₃ +3Mn ΔH =-106.83KJ/mol; 4Al + 3O2 → 2Al ₂ O ₃ ΔH=-1675kJ/mol; 6Fe ₂ O ₃ —Δ→ 4Fe ₃ O ₄ + O2; Fe2O3 + 2 Al → 2 Fe + Al2O3 ΔH=-3265kJ/ Mol; 3Fe ₃ O ₄ +8Al->9Fe+4Al ₂ O ₃ ΔH=-3.667 KJ/g.

However, the present invention is not limited thereto, as long as the oxidizing agent used can undergo a thermite reaction with the aluminum powder to release heat energy, which is within the scope of the present invention. The aluminothermic reaction uses aluminum powder as a reducing agent, which undergoes a redox reaction with an oxidizing agent to release a large amount of heat energy. In this embodiment, the thermal energy can prolong the solidification time of the molten metal at the riser during the casting process, thereby increasing the feeding rate of the riser to the casting. In one embodiment, the content of the metal tantalum powder is 5% by weight to 25% by weight based on the total weight of the main raw material, and the average particle size of the metal tantalum powder. The diameter is from 50 mesh to 250 mesh. The oxyaluminum thermal reaction is as follows: Si + O ₂ -> ΔH -> SiO ₂ ΔH = -989.5 KJ / mol; and ₃ SiO ₂ + 4 Al -> ΔH -> 3Si + ₂ Al ₂ O ₃ ΔH = -4238 KJ / mol

In addition, the oxidation promoter includes cryolite powder. In one embodiment, the content of the cryolite powder is 0.1% by weight to 10% by weight based on the total weight of the main raw material, and the average particle diameter of the cryolite powder is 50 mesh to 250 mesh. The oxidation promoter reacts as follows: the original 2000 ° C aluminum oxide will react: 2Al ₂ O _{3 -} Δ2000 ° C → 4Al + 3O ₂ after the catalyst: 2Al ₂ O _{3 -} Na ₃ AlF ₆ Δ1000 ° C → 4Al + 3O ₂

In addition, the cryolite powder may be replaced by sodium fluoroantimonate, potassium fluoroaluminate or potassium fluorocarbonate. In order to make the formed riser sleeve have good heat preservation characteristics, the solidification time of the molten metal at the riser is extended as much as possible during the casting process, and the main raw material includes the heat insulating material. In an embodiment, the insulating material may be a floating bead, the content of the floating beads is 5% by weight to 20% by weight based on the total weight of the main raw material, and the average particle diameter of the floating beads is 20 mesh. Up to 200 mesh. However, the invention is not limited thereto. In other embodiments, the heat insulating material may also be hollow alumina or perlite.

In order to improve the fire resistance of the riser insulation sleeve, the riser insulation sleeve is not easily ablated by the molten metal during the combustion process, so as to strengthen the strength and durability of the riser insulation sleeve, a heat resistant material, ie, tantalum carbide, may be added to the main raw material. powder. However, the invention is not limited thereto, and may be other heat resistant materials such as magnesia, strontium sand, chrome sand, zircon sand or aluminum oxide.

In one embodiment, the niobium carbide powder has a niobium carbide content of at least greater than or equal to 85%. The content of the niobium carbide powder is 10% by weight to 30% by weight based on the total of the main raw materials, and the niobium tantalum powder has an average particle diameter of 20 mesh to 200 mesh. It is worth noting that the tantalum carbide powder can increase the thermal conductivity, so that the combustion is rapid and the heat is evenly distributed to the entire riser during casting, thereby achieving the effect of sufficient shrinkage, and also due to the material properties of the tantalum carbide, such as its heat resistance. 2730 ° C, hardness of 25-30HRC, thermal conductivity of 800 / mK and thermal expansion coefficient of 4.13x10 ^-6 K ^-1 .

In order to cure the material of the riser sleeve during the manufacture of the riser sleeve, the formed riser sleeve has a certain shape, and the material of the riser sleeve further includes an adhesive. In an embodiment, the binder may be, for example, methanol, water, decyl alcohol, urea formaldehyde resin (having an active ingredient of 30% or more), liquid phenolic resin (having an active ingredient of 50% or more), and a coupling agent ( It may be C ₈ H ₂₂ N ₂ O ₂ Si) in an amount of greater than or equal to 98%. It should be noted that in this embodiment, the urea formaldehyde resin and the liquid phenolic resin are used as a binder. Since aluminum is not resistant to acids and bases, and epoxy resins are required to be made of a base (as a curing agent) and the process thereof is an exothermic reaction, it is not suitable for use in the present invention. That is to say, the binder described in this embodiment is actually prepared in a neutral environment, so that it is not necessary to use alkali as a curing agent without impairing the possibility of the main component (aluminum) of the riser sleeve, and also avoiding preparation. It is hot during the process. In one embodiment, based on the total weight of the binder, wherein the content of the methanol is 10% by weight to 40% by weight, and the content of the water is 5% by weight to 35% by weight, the sterol The content is 10% by weight to 30% by weight, the content of the urea-formaldehyde resin is 10% by weight to 30% by weight, the content of the liquid phenolic resin is 20% by weight to 40% by weight, and the content of the coupling agent is 0.1% by weight to 5% by weight. Further, the binder further includes acetic acid to adjust the pH to between 7.5 and 8.5. The above active ingredient means the purity of the material, that is, the ratio remaining after drying it at 110 °C.

The material of the riser sleeve can be used to manufacture a riser sleeve with high efficiency and high heat generation, which will be described below for the manufacturing method of the riser sleeve. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart showing the steps of manufacturing a riser sleeve in accordance with an embodiment of the present invention.

Referring to FIG. 1 , the embodiment provides a method 100 for manufacturing a high-heat riser insulation sleeve, the steps of which are as follows. First, step 102 is performed to provide the main raw material. The main raw material includes a plurality of aluminum powders, an oxidizing agent, an oxidation promoter, a heat insulating material, a heat generating material, and a tantalum carbide powder. In an embodiment, the aluminum powder comprises a first aluminum powder, a second aluminum powder, and a third aluminum powder. The oxidizing agent may include iron oxide, iron oxide, sodium nitrate, nitrates, and oxides of manganese dioxide and manganese. The oxidation promoter includes cryolite powder. Insulation materials include floating beads. The heating material includes metal tantalum powder. The heat resistant material includes tantalum carbide. In one embodiment, the step of mixing the primary materials is as follows. The aluminum powder, iron oxide, manganese dioxide, floating beads, metal cerium powder, and cerium carbide powder are mixed and continuously stirred for 1 minute to 5 minutes to form a first mixture. Next, sodium nitrate is added to the first mixture to form a second mixture. Thereafter, the cryolite powder is added to the second mixture and stirring is continued for 15 minutes to 20 minutes to form a third mixture. At this time, the aluminum content in the third mixture may be between 15% and 24%. Since the contents and properties of aluminum powder, iron oxide, manganese dioxide, floating beads, metal tantalum powder, tantalum carbide powder, sodium nitrate and cryolite powder have been described in detail in the above paragraphs, they will not be described again.

In an alternative embodiment, the step of mixing the main raw materials may also mix aluminum powder, iron oxide, manganese dioxide, floating beads, metal tantalum powder, tantalum carbide powder, sodium nitrate and cryolite powder into a mixer and mix well. Since aluminum and oxidants may be dangerous (explosion) during the preparation process, aluminum must be mixed with other materials before adding sodium nitrate and cryolite powder.

Next, step 104 is performed to provide a binder. The binder includes methanol, water, decyl alcohol, urea formaldehyde resin, liquid phenolic resin, and a coupling agent. In one embodiment, the step of mixing the binder is as follows. The methanol is mixed with the water to form a mixture A. Next, the sterol was added to the mixture A, and slowly stirred using a stirrer (rotating speed of 5 Hz - 15 Hz) to form a mixture B. Thereafter, the liquid phenolic resin is added to the mixture B to form a mixture C. The urea formaldehyde resin is then added to the mixture C to form a mixture D. Next, the coupling agent is added to the mixture D and stirring is continued for 10 minutes to 20 minutes to form a mixture E. Thereafter, acetic acid (or an organic acid instead, such as citric acid, not a mineral acid) is added to the mixture E and stirring is continued for 10 minutes to 20 minutes to bring the pH between 7.5 and 8.5 to form a mixture. F. Since the contents and properties of methanol, water, decyl alcohol, urea formaldehyde resin, liquid phenolic resin, and coupling agent have been described in detail in the above paragraphs, they will not be described again.

In an alternative embodiment, the step of mixing the binder may also be carried out by mixing methanol, water, decyl alcohol, urea formaldehyde resin, liquid phenolic resin and a coupling agent into a mixer, wherein pure water is mixed with phenolic resin or wood. Both fine and urea-formaldehyde resins can cause the raw materials to be damaged. Therefore, it is necessary to add pure water, wood essence and sterol first.

Additionally, while the above description is provided after the primary material (i.e., step 102) is provided, the binder is provided (i.e., step 104). However, the present invention is not limited thereto. In other embodiments, step 104 may be performed first, and then step 102 is performed.

Thereafter, in step 106, the main raw material and the binder are mixed. Specifically, the main raw material (i.e., the third mixture) and the binder (i.e., the mixture F) are placed in a mixer for kneading to form a material for the riser sleeve. In one embodiment, the material of the riser sleeve is the total weight, wherein the content of the main raw material is 70% by weight to 95% by weight, and the content of the binder is 5% by weight to 30% by weight. %.

Then, step 108 is performed to perform a core molding step. In detail, a mold having a hollow cavity will be provided first. In an embodiment, the mold may be a metal mold. The hollow cavity may be in the shape of a riser sleeve to be formed, which may be designed according to user requirements. Next, the material of the riser sleeve is placed in the core machine. The process pressure of the core forming step (or core shooter) is adjusted to 0.3 MPa to 0.6 MPa, and the material of the riser sleeve is injected into the hollow cavity by the core shooting machine. It is worth mentioning that the process temperature of the core molding step can be completed at normal temperature (10-40 ° C). That is, the core forming step is performed to cure the material of the riser sleeve without heating the mold to form a riser sleeve. Therefore, the riser sleeve of the present embodiment is compared to the conventional method for manufacturing a material for heating a riser sleeve (for example, heating to 120 ° C to 180 ° C or 220 ° C). The manufacturing method is safer and less prone to accidents.

Next, step 110 is performed to perform a demolding step to obtain a riser sleeve. Since the material of the riser sleeve of the embodiment has an adhesive, it can accelerate the curing or hardening of the material of the riser sleeve to form the riser sleeve. Therefore, the present embodiment can be demolded without waiting for the material of the riser sleeve to be solidified or hardened. Compared with the conventional manufacturing method, the manufacturing method of the riser sleeve of the present embodiment can increase the yield to save the processing time. In an embodiment, the time from the end of the shot forming step to the step of performing the demolding may be, for example, from 1 minute to 2 minutes.

In summary, the riser insulation material of the present invention has the characteristics of high efficiency and high heat generation, and can not only suppress the heat dissipation of the molten metal at the riser during casting, but also prolong the solidification time of the molten metal at the riser, thereby improving The feeding rate of the riser to the casting. In addition, the material of the riser sleeve of the present invention further comprises an adhesive which cures the material of the riser sleeve during the manufacture of the riser sleeve. Therefore, the present invention can cure the material of the riser sleeve without heating the mold, and can perform the demoulding step without waiting for the material of the riser sleeve to harden, thereby improving the safety of the process and the output of the riser sleeve.

In addition, the material of the riser sleeve of the present invention also includes tantalum carbide powder, which can increase the thermal conductivity, so that the burning is rapid and the heat is evenly distributed to the entire riser during casting, thereby achieving the effect of sufficient feeding.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Manufacture method

102, 104, 106, 108, 110‧ ‧ steps

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart showing the steps of manufacturing a high heat riser thermal insulation jacket in accordance with an embodiment of the present invention.

100‧‧‧Manufacture method

102, 104, 106, 108, 110‧ ‧ steps

Claims (10)

A high-heat riser insulation sleeve comprising: a main raw material comprising: a plurality of aluminum powders, each of which has an aluminum content of 65% to 95%; an oxidizing agent comprising iron oxide, sodium nitrate and manganese dioxide; an oxidation promoter , comprising cryolite powder; thermal insulation material, including floating beads, hollow alumina or perlite; heating material, including metal tantalum powder; heat resistant material, including tantalum carbide powder, wherein the tantalum carbide powder has a niobium carbide content of at least 85% or more; And a binder comprising methanol, water, decyl alcohol, urea formaldehyde resin, liquid phenolic resin, acetic acid, and a coupling agent, wherein the acetic acid adjusts the pH to between 7.5 and 8.5. The high-heat riser insulation sleeve according to claim 1, wherein the aluminum powder comprises: a first aluminum powder having an aluminum content of 65% to 75% and an average particle diameter of 50 mesh to 300 mesh; The aluminum powder has an aluminum content of greater than or equal to 95% and an average particle diameter of from 50 mesh to 150 mesh; and a third aluminum powder having an aluminum content of greater than or equal to 95% and an average particle diameter of from 200 mesh to 400 mesh. The high-heat riser thermal insulation sleeve according to claim 2, wherein the first aluminum powder is 5% by weight to 25% by weight based on the total weight of the main raw material, and the second aluminum The content of the powder is from 1% by weight to 16% by weight, and the content of the third aluminum powder is from 1% by weight to 15% by weight. The high-heat riser thermal insulation sleeve according to claim 1, wherein the content of the iron oxide is 5% by weight to 20% by weight based on the total weight of the main raw material, and the content of the sodium nitrate is 0.1% by weight to 10% by weight, the content of the manganese dioxide is 1% by weight to 10% by weight, the content of the cryolite powder is 0.1% by weight to 10% by weight, and the content of the floating beads is 5% by weight to 20% by weight, the content of the metal cerium powder is 5% by weight to 25% by weight, and the content of the cerium carbide powder is 10% by weight to 30% by weight. The high-heat riser thermal insulation sleeve according to claim 1, wherein the content of the methanol is 10% by weight to 40% by weight based on the total weight of the binder, and the water content is 5 The content of the sterol is 10% by weight to 30% by weight, the content of the urea-formaldehyde resin is 10% by weight to 30% by weight, and the content of the liquid phenolic resin is 20% by weight to 40% by weight The weight of the coupling agent is from 0.1% by weight to 5% by weight. The high-heat riser thermal insulation sleeve according to claim 1, wherein the material of the high-heat riser insulation sleeve is a total weight, wherein the content of the main raw material is 70% by weight to 95% by weight. The content of the binder is from 5% by weight to 30% by weight. A method for manufacturing a high-heat riser insulation sleeve, comprising: providing a main raw material comprising a plurality of aluminum powders, an oxidant, an oxidation promoter, a heat insulating material, a heat generating material, and a heat resistant material; providing a binder comprising methanol, water, and methanol a urea formaldehyde resin, a liquid phenolic resin, an acetic acid, and a coupling agent; mixing the main raw material and the binder to form a material of the high heat riser insulation sleeve, and using the riser insulation material as a total Weight meter, wherein the main raw material The content is 70% by weight to 95% by weight, and the content of the binder is 5% by weight to 30% by weight, wherein mixing the binder comprises mixing the methanol with the water to form a mixture A Adding the sterol to the mixture A to form a mixture B; adding the liquid phenolic resin to the mixture B to form a mixture C; adding the urea formaldehyde resin to the mixture C to form Mixture D; adding the coupling agent to the mixture D and stirring for 10 minutes to 20 minutes to form a mixture E; and adding the acetic acid to the mixture E, and stirring is continued for 10 minutes to 20 minutes, The pH is made between 7.5 and 8.5 to form the mixture F; the core forming step is performed; and the demolding step is carried out and dried to obtain the riser sleeve. The method for manufacturing a high-heat riser thermal insulation sleeve according to claim 7, wherein the oxidizing agent comprises iron oxide, sodium nitrate and manganese dioxide, the oxidation promoter comprises cryolite powder, and the heat insulating material comprises bleaching. a bead, a hollow alumina or a perlite, the heat generating material comprising a metal tantalum powder, the heat resistant material comprising tantalum carbide powder, and mixing the main raw material comprises: the aluminum powder, the iron oxide, the dioxide Manganese, the floating beads, the metal tantalum powder and the tantalum carbide powder are mixed and continuously stirred for 1 minute to 5 minutes to form a first mixture; the sodium nitrate is added to the first mixture to form a second mixture; and adding the cryolite powder to the second mixture and continuing to stir for 15 minutes to 20 minutes to form a third mixture. The method for manufacturing a high-heat riser thermal insulation sleeve according to the seventh aspect of the invention, wherein the performing the core molding step comprises: placing a material of the riser sleeve into an input core machine; The core machine injects the material of the riser sleeve into a mold having a hollow cavity, wherein the process pressure of the core molding step is 0.3 MPa to 0.6 MPa, wherein the core forming step does not require heating Said the mold. The method for producing a high-heat riser thermal insulation sleeve according to claim 7, wherein a time from the end of the shot forming step to the releasing step is from 1 minute to 2 minutes.