CN107008899B - A kind of hard alloy top hammer manufacturing process - Google Patents
A kind of hard alloy top hammer manufacturing process Download PDFInfo
- Publication number
- CN107008899B CN107008899B CN201710187610.0A CN201710187610A CN107008899B CN 107008899 B CN107008899 B CN 107008899B CN 201710187610 A CN201710187610 A CN 201710187610A CN 107008899 B CN107008899 B CN 107008899B
- Authority
- CN
- China
- Prior art keywords
- top hammer
- minutes
- uniformly
- hard alloy
- warming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of hard alloy top hammer manufacturing process, successively the following steps are included: A, to configured top hammer embryo material carry out de-waxing；B, butadiene-styrene rubber and No. 120 gasoline 1:8 in mass ratio are matched, stirs evenly, be completely dissolved in butadiene-styrene rubber in gasoline, the top hammer semi-finished product after processing of step A is immersed in the above-mentioned gasoline containing butadiene-styrene rubber, natural air drying after taking-up；C, the top hammer semi-finished product after air-drying step B are sintered, and obtain finished product.The invention has the advantages that due to joined impregnation step between de-waxing and sintering process, benefit carbon is carried out to hard alloy top hammer outer layer, increase the carbon content of hard alloy top hammer outer layer after the completion of sintering, the intensity of hard alloy top hammer periphery is strengthened in the case where guaranteeing that hard alloy top hammer center mechanical property is constant.
Description
Technical field
The present invention relates to a kind of hard alloy top hammer manufacturing process.
Background technique
Hard alloy top hammer is exactly the important composition component for producing diamond device, and in the mistake of diamond synthesizing
The alternating load that high temperature and pressure is born in journey manufactures hard alloy top hammer using conventional operation, uses in de-waxing technique and persistently add
Warm mode, furnace cooling is sintered technique again after reaching maximum temperature, carbon amounts among hard alloy top hammer can be made high, periphery carbon
It measures low, leads to periphery low strength, influence overall mechanical properties.
Summary of the invention
The purpose of the present invention is to provide a kind of hard alloy top hammer manufacturing process, can effectively solve the problem that existing hard alloy
The problem of top hammer periphery low strength.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions: a kind of hard alloy top hammer
Manufacturing process, successively the following steps are included:
A, de-waxing is carried out to configured top hammer embryo material；
B, butadiene-styrene rubber and No. 120 gasoline 1:8 in mass ratio are matched, stirs evenly, is completely dissolved in butadiene-styrene rubber
In gasoline, the top hammer semi-finished product after processing of step A are immersed in the above-mentioned gasoline containing butadiene-styrene rubber, natural air drying after taking-up；
C, the top hammer semi-finished product after air-drying step B are sintered, and obtain finished product.
Preferably, the de-waxing technique of the step A are as follows: normal pressure is passed through hydrogen, and hydrogen flowing quantity 1.0L/min is opened from room temperature
Begin uniformly to be warming up to 200 DEG C by 210 minutes, be then uniformly warming up to 300 DEG C by 120 minutes, then by 240 minutes
It is even to be warming up to 380 DEG C, 90 minutes are kept the temperature, uniformly 650 DEG C was warming up to using 210 minutes, was uniformly warming up to using 180 minutes
780 DEG C, room temperature then is as cold as with furnace；Using gradient-heated and pass through insulating process, can effectively improve the strong of entire top hammer
Degree.
Preferably, the sintering process of the step C are as follows: the top hammer semi-finished product after air-drying step B are put into sintering furnace, are taken out
Vacuum, room temperature begin to pass through 210 minutes and are uniformly warming up to 580 DEG C, are then uniformly warming up to 800 DEG C by 120 minutes, then pass through
It spends 240 minutes and is uniformly warming up to 1100 DEG C, keep the temperature 90 minutes, uniformly 1280 DEG C were warming up to using 150 minutes, using 180
Minute is uniformly warming up to 1435 DEG C, is pressurized to 5.0-5.5MPa, keeps the temperature 60 minutes, is then as cold as room temperature with furnace；Sintering process
Using gradient-heated and pass through insulating process, allows carbon preferably to penetrate into the periphery of top hammer, improve the intensity of periphery.
Preferably, the time that top hammer semi-finished product immerse in gasoline containing butadiene-styrene rubber in step B is 10 seconds；It is too short to immerse the time
Enough carbon can not be adhered to after sintering, the time, too long benefit carbon influenced hardness too much.
Compared with prior art, the invention has the advantages that due to joined impregnation step between de-waxing and sintering process,
Benefit carbon is carried out to hard alloy top hammer outer layer, increases the carbon content of hard alloy top hammer outer layer after the completion of sintering, is guaranteeing
The intensity of hard alloy top hammer periphery is strengthened in the case that hard alloy top hammer center mechanical property is constant.
Specific embodiment
A kind of hard alloy top hammer manufacturing process, successively the following steps are included:
A, carry out de-waxing to configured top hammer embryo material: normal pressure is passed through hydrogen, and hydrogen flowing quantity 1.0L/min is opened from room temperature
Begin uniformly to be warming up to 200 DEG C by 210 minutes, be then uniformly warming up to 300 DEG C by 120 minutes, then by 240 minutes
It is even to be warming up to 380 DEG C, 90 minutes are kept the temperature, uniformly 650 DEG C was warming up to using 210 minutes, was uniformly warming up to using 180 minutes
780 DEG C, room temperature then is as cold as with furnace；
B, butadiene-styrene rubber and No. 120 gasoline 1:8 in mass ratio are matched, stirs evenly, is completely dissolved in butadiene-styrene rubber
In gasoline, the top hammer semi-finished product after processing of step A are immersed in the above-mentioned gasoline containing butadiene-styrene rubber 10 seconds, natural wind after taking-up
It is dry；
C, the top hammer semi-finished product after air-drying step B are put into sintering furnace, are vacuumized, and room temperature begins to pass through 210 minutes
It is even to be warming up to 580 DEG C, 800 DEG C uniformly then were warming up to by 120 minutes, was then uniformly warming up to 1100 DEG C by 240 minutes,
Heat preservation 90 minutes, was uniformly warming up to 1280 DEG C using 150 minutes, was uniformly warming up to 1435 DEG C using 180 minutes, is pressurized to
5.0-5.5MPa keeps the temperature 60 minutes, is then as cold as room temperature with furnace, obtains finished product.
Due to joined impregnation step between de-waxing and sintering process, benefit carbon is carried out to hard alloy top hammer outer layer,
Increase the carbon content of hard alloy top hammer outer layer after the completion of sintering, is guaranteeing that hard alloy top hammer center mechanical property is constant
In the case of strengthen the intensity of hard alloy top hammer periphery.
Above is only a specific embodiment of the present invention, but technical characteristic of the invention is not limited thereto, Ren Heben
Within the field of the present invention, made changes or modifications all cover within the scope of the patent of the present invention the technical staff in field.
Claims (2)
1. a kind of hard alloy top hammer manufacturing process, it is characterised in that: successively the following steps are included:
A, de-waxing, de-waxing technique being carried out to prepared top hammer embryo material are as follows: normal pressure is passed through hydrogen, hydrogen flowing quantity 1.0L/min, from
Room temperature begins to pass through 210 minutes and is uniformly warming up to 200 DEG C, is then uniformly warming up to 300 DEG C by 120 minutes, then passes through 240
Minute is uniformly warming up to 380 DEG C, keeps the temperature 90 minutes, was uniformly warming up to 650 DEG C using 210 minutes, uniformly using 180 minutes
780 DEG C are warming up to, is then as cold as room temperature with furnace；
B, butadiene-styrene rubber and No. 120 gasoline 1:8 in mass ratio are matched, stirs evenly, butadiene-styrene rubber is made to be completely dissolved in gasoline
In, the top hammer semi-finished product after processing of step A are immersed in the above-mentioned gasoline containing butadiene-styrene rubber, natural air drying after taking-up；
C, the top hammer semi-finished product after air-drying step B are sintered, sintering process are as follows: the top hammer semi-finished product after air-drying step B
It is put into sintering furnace, vacuumizes, room temperature begins to pass through 210 minutes and is uniformly warming up to 580 DEG C, then uniformly rises by 120 minutes
Then temperature was uniformly warming up to 1100 DEG C by 240 minutes to 800 DEG C, keep the temperature 90 minutes, be uniformly warming up to using 150 minutes
1280 DEG C, 1435 DEG C uniformly were warming up to using 180 minutes, is pressurized to 5.0-5.5MPa, 60 minutes is kept the temperature, is then as cold as with furnace
Room temperature obtains finished product.
2. a kind of hard alloy top hammer manufacturing process as described in claim 1, it is characterised in that: top hammer semi-finished product in step B
The time immersed in gasoline containing butadiene-styrene rubber is 10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187610.0A CN107008899B (en) | 2017-03-27 | 2017-03-27 | A kind of hard alloy top hammer manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187610.0A CN107008899B (en) | 2017-03-27 | 2017-03-27 | A kind of hard alloy top hammer manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107008899A CN107008899A (en) | 2017-08-04 |
| CN107008899B true CN107008899B (en) | 2018-12-28 |
Family
ID=59446620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710187610.0A Active CN107008899B (en) | 2017-03-27 | 2017-03-27 | A kind of hard alloy top hammer manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107008899B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637248B (en) * | 2018-04-25 | 2020-05-05 | 厦门金鹭特种合金有限公司 | Method capable of improving magnetic saturation of hard alloy pre-sintered blank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265542A (en) * | 2008-04-21 | 2008-09-17 | 宜兴市甲有硬质合金制品厂 | Major diameter hard alloy metal trombone die and manufacturing method thereof |
| CN101343697A (en) * | 2008-08-26 | 2009-01-14 | 株洲硬质合金集团有限公司 | Dewaxing and sintering integrated technique for large product of hard alloy |
| CN102268661A (en) * | 2011-07-04 | 2011-12-07 | 成都理工大学 | Method for preparing Al2O3/TiC composite coating hard alloy |
| JP2013053353A (en) * | 2011-09-05 | 2013-03-21 | Toyota Motor Corp | Method for manufacturing sintered product |
| CN103014602A (en) * | 2012-12-14 | 2013-04-03 | 苏州新锐合金工具股份有限公司 | Processing method for eliminating carbon-lack defect of hard alloy products |
| CN105132729A (en) * | 2015-09-29 | 2015-12-09 | 浙江恒成硬质合金有限公司 | Method for supplementing carbon to hard alloy |
-
2017
- 2017-03-27 CN CN201710187610.0A patent/CN107008899B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265542A (en) * | 2008-04-21 | 2008-09-17 | 宜兴市甲有硬质合金制品厂 | Major diameter hard alloy metal trombone die and manufacturing method thereof |
| CN101343697A (en) * | 2008-08-26 | 2009-01-14 | 株洲硬质合金集团有限公司 | Dewaxing and sintering integrated technique for large product of hard alloy |
| CN102268661A (en) * | 2011-07-04 | 2011-12-07 | 成都理工大学 | Method for preparing Al2O3/TiC composite coating hard alloy |
| JP2013053353A (en) * | 2011-09-05 | 2013-03-21 | Toyota Motor Corp | Method for manufacturing sintered product |
| CN103014602A (en) * | 2012-12-14 | 2013-04-03 | 苏州新锐合金工具股份有限公司 | Processing method for eliminating carbon-lack defect of hard alloy products |
| CN105132729A (en) * | 2015-09-29 | 2015-12-09 | 浙江恒成硬质合金有限公司 | Method for supplementing carbon to hard alloy |
Non-Patent Citations (1)
| Title |
|---|
| Ф105mm大型硬质合金六面顶顶锤的研制;钟明扬，王茂青，彭文;《金刚石与磨料磨具工程》;19960229(第01期);43-46 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107008899A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5775825B2 (en) | Surface-reinforced natural wood mold material and method for producing the same | |
| CN104985657B (en) | Enhanced high-temperature heat treated wood and manufacturing method thereof | |
| CN108636304B (en) | Method for preparing aerogel by supercritical drying method and device for supercritical drying | |
| CN106809842B (en) | A kind of preparation method of high temperature oxidation resisting Silica Aerogels | |
| CN107008899B (en) | A kind of hard alloy top hammer manufacturing process | |
| CN108582377A (en) | A kind of compressed wood of the wood compression-original position with the integrated method of autoclaving and its preparation | |
| CN108950560A (en) | The two-sided heat-resisting composite polycrystal-diamond of one kind and its preparation process | |
| CN109456074A (en) | A kind of fiber reinforced ceramic-base electromagnetic wave transparent material and preparation method | |
| CN104909791A (en) | Quartz fiber reinforced silica ceramic composite material densification method | |
| CN107553645A (en) | A kind of method that reel material vacuum impregnation is modified | |
| CN107500796A (en) | A kind of carbon fibre reinforced ceramics based composites and preparation method thereof | |
| CN110271068A (en) | A kind of processing method improving strength of wood and service life | |
| CN107739869B (en) | Nano porous copper composite material and preparation method | |
| CN104818449B (en) | Method for preparing zirconium dioxide permeation layer by zirconium or zirconium alloy surface ion oxygen permeation | |
| CN104627981B (en) | A kind of impregnation technology of carbon goods | |
| CN105479572A (en) | Novel carbonized wood production method | |
| CN108179293A (en) | A kind of titanium matrix composite and preparation method thereof | |
| CN106863509A (en) | A kind of method processed Wooden modifying based on modifying agent | |
| CN104505519A (en) | Age hardening process before grid plate coating of lead-acid storage battery | |
| CN110281321A (en) | A kind of environmental protection stable type timber and its surface layer heat modification method | |
| CN108752046A (en) | A kind of dipping method preparing isostatic pressing formed graphite product | |
| CN104496548B (en) | Metal ceramic surface treating method | |
| CN110171042B (en) | Environment-friendly stable surface-impregnated wood and preparation method thereof | |
| CN105803427B (en) | A kind of method for preparing the diamond that overlay coating thickness is thinned | |
| CN105522627A (en) | Light wood processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |