CN109014011A - The forging technology of automobile engine oil supply system common rail pipe - Google Patents
The forging technology of automobile engine oil supply system common rail pipe Download PDFInfo
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- CN109014011A CN109014011A CN201810757045.1A CN201810757045A CN109014011A CN 109014011 A CN109014011 A CN 109014011A CN 201810757045 A CN201810757045 A CN 201810757045A CN 109014011 A CN109014011 A CN 109014011A
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- rail pipe
- forging
- common rail
- raw material
- supply system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/14—Making machine elements fittings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses the forging technologies of automobile engine oil supply system common rail pipe, comprising the following steps: chooses 42 round steel of model as raw material, required size and weight are sawn by circular saw；High-pressure common-rail pipe blank is placed in intermediate frequency furnace and is heated.There are two the molds of common rail tubular cavity using tool by the present invention, two products can be produced every time, improve production efficiency, but also material can be saved, secondly raw material is after intermediate frequency furnace is heated at high temperature, on its surface to form one layer of iron scale, it is not drawn off before forging, it will affect the surface quality of product, it is most effective that removing iron scale is removed using the mechanical impact force of high pressure water, solve in the market the product only with the type chamber of a common rail pipe, therefore a common rail pipe can only be produced every time, reduce production efficiency, waste a large amount of raw material, serious loss is caused to the economy of production plant, the problem of being unfavorable for the sustainable development of factory.
Description
Technical field
The present invention relates to common rail system technical fields, the specially forging technology of automobile engine oil supply system common rail pipe.
Background technique
High-pressure common rail electric jet technology refers to closing in high-pressure oil pump, pressure sensor and electronic control unit (ECU) composition
In loop system, by the generation and course of injection of spraying pressure a kind of fuel system completely separate from each other, logical excess volume is total to
The high pressure fuel accumulation that rail pipe exports oil pump together, offsets the pressure oscillation in fuel oil with this, forms constant high compression ignition
Oil, and then reallocate and be sent to each fuel injector, unlatching and closed procedure are carried out using the high-speed electromagnetic valve on fuel injector, is realized
The oil mass of timing and quantitative control burning chamber of diesel engine, to realize the best fuel-oil atmozation of diesel engine, most efficient burning
Rate, and most accurate firing node and energy guarantee least exhaust gas discharge.
With the exacerbation of world energy sources crisis and environmental pollution, for energy saving, reduction discharge, Diesel Engine Electronic Control Injection
Technology has obtained development at full speed, in the fuel-economy performance of summary mound DID engine brilliance, meets again increasingly strict
Emission regulation in the case where, high pressure co-rail electric control fuel injection technology application played huge power, not only further
Fuel consumption is reduced, power performance is enhanced, meets stringenter emission regulation, and there is higher injection pressure
With more flexible injection mode, common rail pipe is the core part of common rail system, and the product is only with a common rail pipe in the market
Type chamber, therefore a common rail pipe can only be produced every time, reduce production efficiency, waste a large amount of raw material, give production work
The economy of factory causes serious loss, is unfavorable for the sustainable development of factory.
Summary of the invention
The purpose of the present invention is to provide the forging technologies of automobile engine oil supply system common rail pipe, have high production efficiency
The advantages of, it solves the product in the market only with the type chamber of a common rail pipe, therefore a common rail pipe can only be produced every time, drops
Low production efficiency, wastes a large amount of raw material, causes serious loss to the economy of production plant, be unfavorable for the length of factory
Long the problem of development.
1. to achieve the above object, the invention provides the following technical scheme: the forging of automobile engine oil supply system common rail pipe
Make technique, comprising the following steps:
Step 1: blanking: choosing 42 round steel of model as raw material, required size and weight are sawn by circular saw；
Step 2: heating: high-pressure common-rail pipe blank being placed in intermediate frequency furnace and is heated；
Step 3: accurate hot die forming: carrying out pre-forging forming to the high-pressure common-rail pipe blank after heating using pre-forging mold,
Size needed for making its shape and size meet next step finish forge carries out precision forging to pre- forging using smart forging mold, makes
Size needed for its shape and size meets fine forge piece；
Step 4: trimming: using straight tube deburring machine, and the distance of two round brush is adjusted by the length dimension of high-pressure common-rail pipe blank,
Excision operation is carried out to the overlap at high-pressure common-rail pipe both ends；
Step 5: temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, stops heating and to it
It is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；
Step 6: using high pressure water the raw material of required length water dephosphorization: being removed with the iron scale on surface；
Step 7: cleaning: polishing finishing finally being carried out to the surface of raw material, automobile engine oil supply system common rail can be obtained
Pipe.
Preferably, described to be heated in step 2, temperature in 1150 DEG C -1200 DEG C (can be extended to 1100 DEG C -
1200 DEG C).
Preferably, described also to be needed before carrying out step 3 by using forging roll to preform on high-pressure common-rail pipe blank
It is the biggish position roll forging of cross-sectional area on the high-pressure common-rail pipe at high voltage package, oil return packet and lug into particle size, other positions
Roll forging is at thin footpath.
Preferably, there are two the type chambers of common rail pipe for the forging mold tool used in step 3.
Preferably, it is described need to use fly press in step 3 processed, rule of thumb formula P=KS/q calculate
The projected area calculated result of equipment tonnage out, common rail pipe is 36250mm2, and COEFFICIENT K is taken as 80kN/cm according to hot finish forge experience
2, deformation coefficient q takes 1.3, is computed, nominal pressure 22308kN, therefore former selects the fly press of 3000t.
Compared with prior art, the beneficial effects of the present invention are: the present invention uses the mold having there are two common rail tubular cavity,
Two products can be produced every time, improve production efficiency, but also can save material, and secondly raw material is through intermediate frequency furnace high temperature
After heating, on its surface to form one layer of iron scale, it is not drawn off before forging, will affect the surface quality of product, benefit
Removed with the mechanical impact force of high pressure water removing iron scale be it is most effective, solve in the market the product only with a common rail
The type chamber of pipe, therefore a common rail pipe can only be produced every time, production efficiency is reduced, a large amount of raw material are wasted, to production
The problem of economy of factory causes serious loss, is unfavorable for the sustainable development of factory.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
The present invention provides a kind of technical solution, the forging technology of automobile engine oil supply system common rail pipe, including following step
It is rapid:
Step 1: blanking: choosing 42 round steel of model as raw material, required size and weight are sawn by circular saw；
Step 2: heating: high-pressure common-rail pipe blank being placed in intermediate frequency furnace and is heated；
Step 3: accurate hot die forming: carrying out pre-forging forming to the high-pressure common-rail pipe blank after heating using pre-forging mold,
Size needed for making its shape and size meet next step finish forge carries out precision forging to pre- forging using smart forging mold, makes
Size needed for its shape and size meets fine forge piece；
Step 4: trimming: using straight tube deburring machine, and the distance of two round brush is adjusted by the length dimension of high-pressure common-rail pipe blank,
Excision operation is carried out to the overlap at high-pressure common-rail pipe both ends；
Step 5: temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, stops heating and to it
It is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；
Step 6: using high pressure water the raw material of required length water dephosphorization: being removed with the iron scale on surface；
Step 7: cleaning: polishing finishing finally being carried out to the surface of raw material, automobile engine oil supply system common rail can be obtained
Pipe.
Embodiment one:
Blanking: 42 round steel of model is chosen as raw material, required size and weight are sawn by circular saw；Heating: will be high
Pressure common rail pipe blank, which is placed in intermediate frequency furnace, to be heated；Accurate hot die forming: using pre-forging mold to heating
High-pressure common-rail pipe blank afterwards carries out pre-forging forming, and size needed for making its shape and size meet next step finish forge uses
Smart forging mold carries out precision forging, size needed for making its shape and size meet fine forge piece to pre- forging；Trimming: using straight
Pipe deburring machine is adjusted the distance of two round brush by the length dimension of high-pressure common-rail pipe blank, flown to high-pressure common-rail pipe both ends
While carrying out excision operation；Temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, stops heating
And it is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；Water dephosphorization: it uses
High pressure water removes the iron scale on surface to the raw material of required length；Cleaning: polishing essence finally is carried out to the surface of raw material
It is whole, automobile engine oil supply system common rail pipe can be obtained.
Embodiment two:
In example 1, following processes are added:
It is heated in step 2, temperature (can be extended to 1100 DEG C -1200 DEG C) in 1150 DEG C -1200 DEG C.
Blanking: 42 round steel of model is chosen as raw material, required size and weight are sawn by circular saw；Heating:
High-pressure common-rail pipe blank is placed in intermediate frequency furnace and is heated；Accurate hot die forming: pre-forging mold pair is used
High-pressure common-rail pipe blank progress pre-forging forming after heating, size needed for making its shape and size meet next step finish forge,
Precision forging, size needed for making its shape and size meet fine forge piece are carried out to pre- forging using smart forging mold；Trimming: make
With straight tube deburring machine, the distance of two round brush is adjusted by the length dimension of high-pressure common-rail pipe blank, to high-pressure common-rail pipe both ends
Overlap carry out excision operation；Temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, is stopped
It heats and it is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；Water dephosphorization:
Using high pressure water the raw material of required length are removed with the iron scale on surface；Cleaning: finally the surface of raw material is beaten
Finishing is ground, automobile engine oil supply system common rail pipe can be obtained.
Embodiment three:
In example 2, following processes are added:
It is also needed before carrying out step 3 by using forging roll to being pre-formed into high voltage package, oil return packet on high-pressure common-rail pipe blank
With the biggish position roll forging of cross-sectional area on the high-pressure common-rail pipe at lug at particle size, other position roll forging are at thin footpath.
Blanking: 42 round steel of model is chosen as raw material, required size and weight are sawn by circular saw；Heating:
High-pressure common-rail pipe blank is placed in intermediate frequency furnace and is heated；Accurate hot die forming: pre-forging mold pair is used
High-pressure common-rail pipe blank progress pre-forging forming after heating, size needed for making its shape and size meet next step finish forge,
Precision forging, size needed for making its shape and size meet fine forge piece are carried out to pre- forging using smart forging mold；Trimming: make
With straight tube deburring machine, the distance of two round brush is adjusted by the length dimension of high-pressure common-rail pipe blank, to high-pressure common-rail pipe both ends
Overlap carry out excision operation；Temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, is stopped
It heats and it is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；Water dephosphorization:
Using high pressure water the raw material of required length are removed with the iron scale on surface；Cleaning: finally the surface of raw material is beaten
Finishing is ground, automobile engine oil supply system common rail pipe can be obtained.
Example IV:
In the third embodiment, following processes are added:
There are two the type chambers of common rail pipe for the forging mold tool used in step 3.
Blanking: 42 round steel of model is chosen as raw material, required size and weight are sawn by circular saw；Heating:
High-pressure common-rail pipe blank is placed in intermediate frequency furnace and is heated；Accurate hot die forming: pre-forging mold pair is used
High-pressure common-rail pipe blank progress pre-forging forming after heating, size needed for making its shape and size meet next step finish forge,
Precision forging, size needed for making its shape and size meet fine forge piece are carried out to pre- forging using smart forging mold；Trimming: make
With straight tube deburring machine, the distance of two round brush is adjusted by the length dimension of high-pressure common-rail pipe blank, to high-pressure common-rail pipe both ends
Overlap carry out excision operation；Temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, is stopped
It heats and it is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；Water dephosphorization:
Using high pressure water the raw material of required length are removed with the iron scale on surface；Cleaning: finally the surface of raw material is beaten
Finishing is ground, automobile engine oil supply system common rail pipe can be obtained.
Embodiment five:
In example IV, following processes are added:
It needs to use fly press in step 3 and be processed, rule of thumb formula P=KS/q calculates equipment tonnage, common rail
The projected area calculated result of pipe is 36250mm2, and COEFFICIENT K is taken as 80kN/cm2 according to hot finish forge experience, and deformation coefficient q takes
1.3, it is computed, nominal pressure 22308kN, therefore former selects the fly press of 3000t.
Blanking: 42 round steel of model is chosen as raw material, required size and weight are sawn by circular saw；Heating:
High-pressure common-rail pipe blank is placed in intermediate frequency furnace and is heated；Accurate hot die forming: pre-forging mold pair is used
High-pressure common-rail pipe blank progress pre-forging forming after heating, size needed for making its shape and size meet next step finish forge,
Precision forging, size needed for making its shape and size meet fine forge piece are carried out to pre- forging using smart forging mold；Trimming: make
With straight tube deburring machine, the distance of two round brush is adjusted by the length dimension of high-pressure common-rail pipe blank, to high-pressure common-rail pipe both ends
Overlap carry out excision operation；Temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, is stopped
It heats and it is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；Water dephosphorization:
Using high pressure water the raw material of required length are removed with the iron scale on surface；Cleaning: finally the surface of raw material is beaten
Finishing is ground, automobile engine oil supply system common rail pipe can be obtained.
In summary: the forging technology of the automobile engine oil supply system common rail pipe, by using tool, there are two common rail pipes
The mold of type chamber can produce two products every time, improve production efficiency, but also can save material, secondly in raw material warp
After frequency induction furnace high-temperature heating, on its surface to form one layer of iron scale, it is not drawn off before forging, will affect product
Surface quality, removed using the mechanical impact force of high pressure water removing iron scale be it is most effective, solve in the market the product only
Using the type chamber of a common rail pipe, therefore a common rail pipe can only be produced every time, reduce production efficiency, waste a large amount of original
Material, the problem of causing serious loss to the economy of production plant, be unfavorable for the sustainable development of factory.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. the forging technology of automobile engine oil supply system common rail pipe, it is characterised in that: the following steps are included:
Step 1: blanking: choosing 42 round steel of model as raw material, required size and weight are sawn by circular saw；
Step 2: heating: high-pressure common-rail pipe blank being placed in intermediate frequency furnace and is heated；
Step 3: accurate hot die forming: carrying out pre-forging forming to the high-pressure common-rail pipe blank after heating using pre-forging mold,
Size needed for making its shape and size meet next step finish forge carries out precision forging to pre- forging using smart forging mold, makes
Size needed for its shape and size meets fine forge piece；
Step 4: trimming: using straight tube deburring machine, and the distance of two round brush is adjusted by the length dimension of high-pressure common-rail pipe blank,
Excision operation is carried out to the overlap at high-pressure common-rail pipe both ends；
Step 5: temperature control is cooling: first being heated using oxy-acetylene, when raw material are heated to 1200 DEG C, stops heating and to it
It is kept the temperature, multiple blowers are arranged in side on a moving belt, carry out to the forging on conveyer belt air-cooled；
Step 6: using high pressure water the raw material of required length water dephosphorization: being removed with the iron scale on surface；
Step 7: cleaning: polishing finishing finally being carried out to the surface of raw material, automobile engine oil supply system common rail can be obtained
Pipe.
2. the forging technology of automobile engine oil supply system common rail pipe according to claim 1, it is characterised in that: it is described
It is heated in step 2, temperature (can be extended to 1100 DEG C -1200 DEG C) in 1150 DEG C -1200 DEG C.
3. the forging technology of automobile engine oil supply system common rail pipe according to claim 1, it is characterised in that: it is described
It also needs by using forging roll before carrying out step 3 to being pre-formed into high voltage package, oil return packet and lug on high-pressure common-rail pipe blank
The biggish position roll forging of cross-sectional area is at particle size on the high-pressure common-rail pipe at place, other position roll forging are at thin footpath.
4. the forging technology of automobile engine oil supply system common rail pipe according to claim 1, it is characterised in that: it is described
There are two the type chambers of common rail pipe for the tool of forging mold used in step 3.
5. the forging technology of automobile engine oil supply system common rail pipe according to claim 1, it is characterised in that: it is described
It needs to use fly press in step 3 and be processed, rule of thumb formula P=KS/q calculates equipment tonnage, the throwing of common rail pipe
Shadow areal calculation result is 36250mm2, and COEFFICIENT K is taken as 80kN/cm2 according to hot finish forge experience, and deformation coefficient q takes 1.3, through counting
It calculates, nominal pressure 22308kN, therefore former selects the fly press of 3000t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757045.1A CN109014011A (en) | 2018-07-11 | 2018-07-11 | The forging technology of automobile engine oil supply system common rail pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757045.1A CN109014011A (en) | 2018-07-11 | 2018-07-11 | The forging technology of automobile engine oil supply system common rail pipe |
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| CN109014011A true CN109014011A (en) | 2018-12-18 |
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| CN201810757045.1A Pending CN109014011A (en) | 2018-07-11 | 2018-07-11 | The forging technology of automobile engine oil supply system common rail pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479791A (en) * | 2019-09-23 | 2019-11-22 | 长春市阿尔科达科技有限公司 | A kind of molding processing method of high pressure oil rail necking down |
| CN110586827A (en) * | 2019-09-16 | 2019-12-20 | 江苏理研科技股份有限公司 | Forging process of fuel common rail |
| CN114833529A (en) * | 2022-04-14 | 2022-08-02 | 力野精密工业（深圳）有限公司 | Production process of automobile control arm |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110586827A (en) * | 2019-09-16 | 2019-12-20 | 江苏理研科技股份有限公司 | Forging process of fuel common rail |
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