CN104918407B - A kind of production technology of the high life runner plate of resistance to hot pressing - Google Patents
A kind of production technology of the high life runner plate of resistance to hot pressing Download PDFInfo
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- CN104918407B CN104918407B CN201510267701.6A CN201510267701A CN104918407B CN 104918407 B CN104918407 B CN 104918407B CN 201510267701 A CN201510267701 A CN 201510267701A CN 104918407 B CN104918407 B CN 104918407B
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- runner plate
- hot pressing
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0055—After-treatment, e.g. cleaning or desmearing of holes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/053—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an inorganic insulating layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/025—Abrading, e.g. grinding or sand blasting
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
Abstract
This case discloses a kind of production technology of the high life runner plate of resistance to hot pressing, including：S1 carries out blasting treatment using steel plate as base material, to steel plate；Paint brush is applied to the surface of steel plate by S2；S3 is sintered；S4 polishes；Wherein, coating includes：200 parts of 40~42 parts of aluminum oxide, 25~27 parts of zirconium oxide, 20~22 parts of silica, 14~16 parts of cobalt oxide, 2~4 parts of cupric oxide, 2~4 parts of platinum oxide, 2~4 parts of strontium oxide strontia and water；Sintering condition is：In atmosphere of inert gases, from 0~20min, 120 DEG C are at the uniform velocity warming up to；20min~2h, constant temperature is at 120 DEG C；2h~4h, 730 DEG C are at the uniform velocity warming up to from 120 DEG C；4h~6h, constant temperature is at 730 DEG C；After 6h, 25 DEG C are naturally cooled to.The runner plate gone out by this case technique productions can realize the use for ensureing high frequency time under the conditions of HTHP is strong, and not breathing, surfacing is wear-resisting, is not recessed.
Description
Technical field
The present invention relates to a kind of production technology of insulation board, and in particular to a kind of Surface coating has the high life of modified coating
The production technology for the runner plate of resistance to hot pressing.
Background technology
In the main body base material of manufacturing line road plate (PCB), it is necessary to be entered the different material of multilayer using electric press
Row pressing, the operation principle of this electric press are the tacky resin materials being processed by copper foil (or aluminium foil) conductive heater, and
Multilayer material is pressure bonded to not a half hour by applying certain pressure, so as to which board substrate be made, and is using electric press pressure
During conjunction, for cost consideration, single stitching operation generally requires to press multi-disc board substrate simultaneously, and in order that multi-disc
Board substrate is not affected, it is necessary to they be overlapped, and insert a kind of special metal between them each other in pressing
Plate, it has insulation, heat transfer, and support and the effect separated, this special metallic plate with superelevation flatness are called
Runner plate.
The runner plate difference maximum with common insulation board is exactly that its surface has a kind of special coating, property of the coating to runner plate
There can be strong influence, very high to the performance requirement of runner plate in process for pressing, electric press both produces height in operation
Warm amount (is more than 300 DEG C), there is very strong pressure (being more than 50MPa) again, and this just needs runner plate to possess outstanding resistance to hot press performance,
I.e. runner plate is needed with very high limit tolerable temperature and limit tolerance pressure, also, more weight, the surface palpus of runner plate
Very flat smooth can be still being kept after multiple hot pressing, surface is not recessed, and breathing does not occur, and at present existing
Can not also realize this requirement in technology, the runner plate of prior art is general can about use 150 times or so at normal temperatures after, its surface
Begin to be recessed, cause runner plate to fail, and be also only capable of just having failed using about 60 times at high temperature.And prior art without
Method realizes that another reason of this requirement is to prepare its technique not carry out depth optimization also, including：Pre-treatment master to base material
To handle by chemical method, not only pollute, and stronger stress can be produced, have a strong impact on the quality of runner plate；To applying
The improvement of material formula does not also obtain ideal effect；The sintering process of coating is not improved effectively.
The content of the invention
In view of the deficiencies of the prior art, it is an object of the invention to provide a kind of production of the high life runner plate of resistance to hot pressing
Technique, the runner plate that thus technique productions go out can realize the use for ensureing high frequency time under the conditions of HTHP is strong, not breathing, table
Face is smooth wear-resisting, is not recessed.
Technical scheme is summarized as follows：
A kind of production technology of the high life runner plate of resistance to hot pressing, including：
S1:Using steel plate as base material, blasting treatment is carried out to steel plate；
S2:Paint brush is applied to the surface of steel plate；
S3:Sintering；
S4:Polishing；
Wherein, in S2, the coating includes following material：
In S3, sintering condition is：In atmosphere of inert gases, from 0~20min, 120 DEG C are at the uniform velocity warming up to；20min~
2h, constant temperature is at 120 DEG C；2h~4h, 730 DEG C are at the uniform velocity warming up to from 120 DEG C；4h~6h, constant temperature is at 730 DEG C；After 6h, natural cooling
To 25 DEG C.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the coating also includes 2~4 weight
The lanthana of part.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the coating also includes 2~4 weight
The boron nitride of part.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the coating also includes 2~4 weight
The calcium titanate of part.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the coating also includes 2~4 weight
The vanadium oxide of part.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the linear thermal expansion system of the steel plate
Number is 12~16ppm/ DEG C.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the abrasive material of sandblasting be white fused alumina,
The blend of diamond and phenolic resin, the granularity of the abrasive material is 350~400 mesh, and blasting pressure is 1.3~1.5MPa.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the abrasive material be comprising 35~
The blend of the phenolic resin of 45wt% white fused alumina, 40~50wt% diamond and 5~25wt%.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the abrasive material includes 42wt%
The blend of the phenolic resin of white fused alumina, 50wt% diamond and 8wt%.
Preferably, the production technology of the described high life runner plate of resistance to hot pressing, wherein, the equal molecule of number of the phenolic resin
Measure as 68000~72000g/mol.
The beneficial effects of the invention are as follows：1) chemical treatment has been broken away to environment and has been set as pre-treatment using blasting craft
Standby pollution, while the shear stress of runner plate will not be produced, reduce deformation；2) improved coating is with aluminum oxide, zirconium oxide, oxygen
SiClx and cobalt oxide are core, by introducing a variety of oxides with synergistic effect, effectively increase runner plate coating in height
Bulk strength, surface smoothness, resistance to hot pressing and wear resistance under pressure, so as to effectively overcome the overall breathing of runner plate
To baneful influence caused by its own using effect and service life；3) drawn by many experiments, using segmented ladder
Heating, can effectively suppress the internal stress of coating, obtain optimal coating performance.
Embodiment
With reference to embodiment, the present invention is described in further detail, to make those skilled in the art with reference to specification
Word can be implemented according to this.
This case proposes the production technology of the high life runner plate of resistance to hot pressing of an embodiment, including：
S1:Using steel plate as base material, blasting treatment is carried out to steel plate；
S2:Paint brush is applied to surface of steel plate, thickness is brushed and is defined by energy all standing surface of steel plate, usually 10~30 μ
m；
S3:Sintering；
S4:Polishing；
Wherein, in S2, coating used includes following material：
In S3, sintering condition is：In atmosphere of inert gases, from 0~20min, 120 DEG C are at the uniform velocity warming up to；20min~
2h, constant temperature is at 120 DEG C；2h~4h, 730 DEG C are at the uniform velocity warming up to from 120 DEG C；4h~6h, constant temperature is at 730 DEG C；After 6h, natural cooling
To 25 DEG C.
Material therefor preferably selects nano level powder or micron powder in coating.
Research finds that sintering temperature of the prior art and time can not make the coating of this case play optimum efficiency, therefore
This case use ladder-elevating temperature method, improve coating it is sintered after this unstable technological deficiency of performance.In firm sintering,
Out of 0~20min this period, 120 DEG C are at the uniform velocity warming up to, this is the activation temperature of coating, available for increase coating to steel
The bonding stability of plate；Then in this period of 20min~2h, for constant temperature at 120 DEG C, this is for eliminating answering for coat inside
Power, to ensure that the coating after sintering does not have obvious breathing phenomenon；Then in this period of 2h~4h, at the uniform velocity risen from 120 DEG C
For temperature to 730 DEG C, this is dehydration and the sinter molding stage of coating, is slowly that molding rate is moderate the advantages of heating sintering, existing
Effect have adjusted the surface rigidity of coating, and and can ensures that the function of each additive can be not suppressed each other, so as to obtain
The coating of optimum performance；Then in this period of 4h~6h, constant temperature is at 730 DEG C, lasting heat preservation sintering at these elevated temperatures, coating
In volatile impurity will thoroughly be eliminated, coating will completely be shaped, effective guarantee coating due property；Stop after 6h
Heating, naturally cools to 25 DEG C, is to adjust the fracture toughness of coating, is burst with preventing coating to be quenched.But need strong
Adjust, above-mentioned heating, the time of temperature control, the size of temperature should all be limited, and deviate these preferable number ranges, coating
Final performance will be affected.
In addition, the material category and addition added in coating should also be limited, when the above-mentioned preferable scope of deviation and kind
After class, the performance of runner plate will be severely impacted, also, the coating that the technique of above-mentioned sintering is also no longer desirable for after change is matched somebody with somebody
Side, therefore, formulation for coating material and sintering process are an organic wholes, and both match.
As another embodiment of this case, wherein, the lanthanas of 2~4 parts by weight is also included in coating.Lanthana can improve painting
Intensity, hardness and the resistance to elevated temperatures of layer, but should be noted that the addition of lanthana should be limited, if lanthana adds
Dosage is less than 2 parts by weight, then can not activate its synergistic effect, can not effectively improve the intensity, hardness and resistance to elevated temperatures of coating；
If the addition of lanthana is more than 4 parts by weight, lanthana can accelerate the bleed rate of moisture in calcining, increase coating again
Surface stress, so that coating becomes fragile, weatherability reduces, and easy to crack or depression, has had a strong impact on the service life of coating.
As the another embodiment of this case, wherein, the boron nitride of 2~4 parts by weight is also included in coating.Experiment is found, is nitrogenized
Boron can reduce runner plate coating to the temperature difference and the susceptibility and expansion amplitude of pressure difference, so as to reduce the breathing rate of runner plate, but together
Sample, the addition of boron nitride must also be limited, if the addition of boron nitride is less than 2 parts by weight, can not activate its synergistic work
With can not effectively suppress the breathing rate of runner plate, so that runner plate occurs as soon as coating surface corrugation after hot pressing 50 times, has cut
Or depression；If the addition of boron nitride is more than 4 parts by weight, boron nitride easily increases the burst rate of coating in calcining, so as to shadow
The structural stability and yields of runner plate are rung.
As the another embodiment of this case, wherein, the calcium titanate of 2~4 parts by weight is also included in coating, it can control coating
The bleed rate of powder moisture in calcining, so as to improve the excessive stress of coat inside, improve the resistance to compression of coating and resistance to
High-temperature behavior, moreover, calcium titanate may also suppress coat inside to the temperature difference, the breathing sensitivity amplitude of pressure difference, so that coating
Surface is more stable more robust.But experimental data similarly shows, the addition of calcium titanate should be limited, and inappropriate addition is anti-
And negative effect can be formed.
As the another embodiment of this case, wherein, the vanadium oxides of 2~4 parts by weight is also included in coating.By testing unexpected hair
Existing, vanadium oxide also boron nitride and calcium titanate can improve the breathing amplitude of runner plate alone or synergistically, it is hereby achieved that even more ideal
Result.Similarly, significant trace mineral supplement is acted on as one kind, its addition should be limited, and inappropriate addition is anti-
And the effect of vanadium oxide can be caused to fail.
As the another embodiment of this case, wherein, the thermal linear expansion coefficient of steel plate is 12~16ppm/ DEG C.Because runner plate is main
For manufacturing pcb board, and an important main material in pcb board is exactly copper coin, and the thermal linear expansion coefficient of copper is 16.7ppm/
DEG C, therefore in order to prevent copper coin from extruding corrugation or fracture occurring in hot pressing, the thermal linear expansion coefficient of runner plate in theory should
As far as possible close to the thermal linear expansion coefficient of copper, but had been surprisingly found that by experiment, true really not so, in hot pressing, high temperature is logical
Cross energization and realize heating function, in the case where high temperature is powered, deviation occurs for the thermal linear expansion coefficient of different metals, different
Metal material, the degree that it deviates is also different, therefore for the technical scheme of this case, select thermal linear expansion coefficient for
16.1~17ppm/ DEG C of steel plate is not optimal selection, and the thermal linear expansion coefficient of steel plate should be preferably 12~16ppm/ DEG C, more
Preferably 13~15ppm/ DEG C, most preferably 14ppm/ DEG C.Because the material composition of steel is sufficiently complex, in the market has different
Model, different specific compositions have different thermal linear expansion coefficients, and this case need not make restriction to the specific composition of steel plate,
Its thermal linear expansion coefficient only need to be limited.If the thermal linear expansion coefficient of steel plate less than 12ppm/ DEG C, can cause and mirror
The surface wrinkling for the pcb board that plate is in contact；If the thermal linear expansion coefficient of steel plate is more than 16ppm/ DEG C, in hot pressing, with mirror
Crackle occurs in the surface for the pcb board that plate is in contact.
As the another embodiment of this case, wherein, the abrasive material of sandblasting is the blending of white fused alumina, diamond and phenolic resin
Thing, the granularity of abrasive material is 350~400 mesh, and blasting pressure is 1.3~1.5MPa.In the present case, the purpose of sandblasting is to reduce steel plate
Denaturation, reduce stress, therefore, the abrasive material of single kind can not meet this requirement, it is necessary to using compound abrasive material, experiment hair
Existing, after using single type blasting by abrasives using compound abrasive material ratio, the breathing rate of obtained runner plate reduces at least 7%, also, grinds
The granularity of material should also be limited, if the granularity of abrasive material is less than 350 mesh, cause the roughness after sandblasting excessive, so as to have impact on
Coating be sintered after surface smoothness；If the granularity of abrasive material is more than 400 mesh, de-stress can not be effectively gone, and can influence to apply
The combination stability of layer and steel plate.In addition, the pressure of sandblasting should also be limited, can not be effectively right if pressure is less than 1.3MPa
Surface of steel plate carries out unstressed sandblasting, causes the breathing amplitude of steel plate to raise；If pressure is more than 1.5MPa, too high pressure meeting
So that abrasive material damages to the surface texture of steel plate, the adhesion of coating and steel plate have impact on.
It is further preferred that in above-described embodiment, abrasive material is preferably white fused alumina, the 40~50wt% for including 35~45wt%
Diamond and 5~25wt% phenolic resin blend, the most preferably white fused alumina comprising 42wt%, 50wt% gold
The blend of hard rock and 8wt% phenolic resin.Also, the number-average molecular weight of phenolic resin should be also defined, preferably 68000
~72000g/mol.
Table one is listed the main technologic parameters of different embodiments and its performance parameter of runner plate is made using this technique：
Table one
Table two lists the main technologic parameters of different comparative examples and its performance parameter of obtained runner plate：
Table two
Table three lists the main technique formula using embodiment 1 as standard, the contrast formed with reference to different sintering conditions
The main technologic parameters of example and its performance parameter of obtained runner plate：
Table three
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details.
Claims (10)
1. a kind of production technology of the high life runner plate of resistance to hot pressing, including：
S1：Using steel plate as base material, blasting treatment is carried out to steel plate；
S2：Paint brush is applied to the surface of steel plate；
S3：Sintering；
S4：Polishing；
Wherein, in S2, the coating includes following material：
In S3, sintering condition is：In atmosphere of inert gases, from 0~20min, 120 DEG C are at the uniform velocity warming up to；20min~2h,
Constant temperature is at 120 DEG C；2h~4h, 730 DEG C are at the uniform velocity warming up to from 120 DEG C；4h~6h, constant temperature is at 730 DEG C；After 6h, naturally cool to
25℃。
2. the production technology of the high life runner plate of resistance to hot pressing according to claim 1, it is characterised in that the coating also includes
The lanthana of 2~4 parts by weight.
3. the production technology of the high life runner plate of resistance to hot pressing according to claim 1, it is characterised in that the coating also includes
The boron nitride of 2~4 parts by weight.
4. the production technology of the high life runner plate of resistance to hot pressing according to claim 1, it is characterised in that the coating also includes
The calcium titanate of 2~4 parts by weight.
5. the production technology of the high life runner plate of resistance to hot pressing according to claim 1, it is characterised in that the coating also includes
The vanadium oxide of 2~4 parts by weight.
6. the production technology of the high life runner plate of resistance to hot pressing according to claim 1, it is characterised in that the steel plate it is linear
Thermal coefficient of expansion is 12~16ppm/ DEG C.
7. the production technology of the high life runner plate of resistance to hot pressing according to claim 1, it is characterised in that the abrasive material of sandblasting is
The blend of white fused alumina, diamond and phenolic resin, the granularity of the abrasive material are 350~400 mesh, blasting pressure is 1.3~
1.5MPa。
8. the production technology of the high life runner plate of resistance to hot pressing according to claim 7, it is characterised in that the abrasive material is to include
The blend of the phenolic resin of 35~45wt% white fused alumina, 40~50wt% diamond and 5~25wt%.
9. the production technology of the high life runner plate of resistance to hot pressing according to claim 8, it is characterised in that the abrasive material is to include
The blend of the phenolic resin of 42wt% white fused alumina, 50wt% diamond and 8wt%.
10. the production technology of the high life runner plate of resistance to hot pressing according to claim 9, it is characterised in that the phenolic resin
Number-average molecular weight be 68000~72000g/mol.
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| CN201510267701.6A CN104918407B (en) | 2015-05-22 | 2015-05-22 | A kind of production technology of the high life runner plate of resistance to hot pressing |
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| CN105517334A (en) * | 2015-12-10 | 2016-04-20 | 苏州市嘉明机械制造有限公司 | Impregnation technology based production process of high-strength insulation runner plate |
| CN107513696B (en) * | 2017-09-12 | 2019-08-13 | 张家港市微纳新材料科技有限公司 | Diamond coatings brill/milling cutter grinds pretreated method |
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| US6355360B1 (en) * | 1998-04-10 | 2002-03-12 | R.E. Service Company, Inc. | Separator sheet laminate for use in the manufacture of printed circuit boards |
| CN101037566A (en) * | 2005-12-22 | 2007-09-19 | 莫门蒂夫性能材料股份有限公司 | Wear resistant low friction coating composition, coated components, and method for coating thereof |
| CN102625571A (en) * | 2012-03-19 | 2012-08-01 | 苏州市嘉明机械制造有限公司 | Pressed aluminum mirror board for electric press |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417394A (en) * | 1990-05-11 | 1992-01-22 | Hitachi Ltd | Glass ceramic multilayer circuit board and manufacture thereof |
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2015
- 2015-05-22 CN CN201510267701.6A patent/CN104918407B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6355360B1 (en) * | 1998-04-10 | 2002-03-12 | R.E. Service Company, Inc. | Separator sheet laminate for use in the manufacture of printed circuit boards |
| CN101037566A (en) * | 2005-12-22 | 2007-09-19 | 莫门蒂夫性能材料股份有限公司 | Wear resistant low friction coating composition, coated components, and method for coating thereof |
| CN102625571A (en) * | 2012-03-19 | 2012-08-01 | 苏州市嘉明机械制造有限公司 | Pressed aluminum mirror board for electric press |
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Effective date of registration: 20201221 Address after: 224000 group 5, shengliqiao village, CHANGDANG Town, Sheyang County, Yancheng City, Jiangsu Province Patentee after: YANCHENG JIATENG ELECTROMECHANICAL Co.,Ltd. Address before: 215000 Hengtang Youth Industrial Park, Suzhou High-tech Zone, Jiangsu Province Patentee before: SUZHOU JIAMING MACHINERY MANUFACTURING Co.,Ltd. |