CN1108351C - Forming agent for producing hard alloy - Google Patents
Forming agent for producing hard alloy Download PDFInfo
- Publication number
- CN1108351C CN1108351C CN00113640A CN00113640A CN1108351C CN 1108351 C CN1108351 C CN 1108351C CN 00113640 A CN00113640 A CN 00113640A CN 00113640 A CN00113640 A CN 00113640A CN 1108351 C CN1108351 C CN 1108351C
- Authority
- CN
- China
- Prior art keywords
- forming agent
- styrene
- portions
- weight
- rubber
- 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.)
- Expired - Fee Related
Links
- 239000000956 alloy Substances 0.000 title abstract description 5
- 229910045601 alloy Inorganic materials 0.000 title abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 239000005060 rubber Substances 0.000 claims abstract description 17
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims abstract description 8
- 229920003193 cis-1,4-polybutadiene polymer Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 229920001195 polyisoprene Polymers 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims 1
- 239000002174 Styrene-butadiene Substances 0.000 claims 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims 1
- 239000011115 styrene butadiene Substances 0.000 claims 1
- 229920003048 styrene butadiene rubber Polymers 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 150000003505 terpenes Chemical class 0.000 abstract 1
- 235000007586 terpenes Nutrition 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- FKSMGCPXPSJFJJ-UHFFFAOYSA-N [Na].C=CC=C Chemical group [Na].C=CC=C FKSMGCPXPSJFJJ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010068 moulding (rubber) Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polyoxyethylene Polymers 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention discloses a new forming agent for preparing hard alloy. The present invention is characterized in that the forming agent is prepared from 7 to 8 portions by weight of styrene-butadiene-styrene, 7 to 8 portions by weight of polypentadiene, 5 to 6 portions by weight of cis-1, 4-polybutadiene rubber, 2 to 3 portions by weight of terpene resin and 79 to 75 portions by weight of solvent naphtha. Compared with a rubber forming agent, the forming agent of the present invention has the advantages of favorable binding property, high green strength, difficult ageing, no contamination of an alloy product, favorable granulating property, etc.
Description
The present invention relates to a kind of forming agent that is used to produce Wimet, belong to chemical field.
At present, the forming agent that CEMENTED CARBIDE PRODUCTION adopts mainly is sodium butadiene rubber, paraffin, polyoxyethylene glycol (PEG), begins to use in a large number styrene-butadiene-styrene (SBS) to do forming agent in recent years again.The sodium butadiene rubber formability is better, but main drawback is the residual carbon height, can not adopt the high-carbon wolfram varbide, reduces alloy toughness; The wax moulding agent does not have residual carbon, but compact strength is low, the difficult control of carbon amount, easy dirtyization; PEG forming agent performance is between rubber and paraffin, but because moisture absorption is serious, range of application is narrow, only is suitable for spraying drying.
The object of the present invention is to provide a kind of novel being used to produce the forming agent of Wimet (SBP), to overcome above-mentioned shortcoming.
The present invention is used to produce the forming agent of Wimet, it is characterized in that it is mixed by component styrene-butadiene-styrene, polyisoprene, cis-1,4-polybutadiene rubber, terpine resin, industrial naptha to form, and the weight proportion of each component is as follows:
Styrene-butadiene-styrene 7-8 part
Polyisoprene 7-8 part
Cis-1,4-polybutadiene rubber 5-6 part
Terpine resin 2-3 part
Industrial naptha 79-75 part
The present invention compares with the rubber-moulding agent has following advantage:
1, cohesiveness is extremely strong, and the compact strength height can not cause dirtyization of alloy product.
2, the SBP forming agent is difficult for wearing out, even deposit half a year, also can not lump, wear out.
3, the performance of sieving is good, and the SBP material is soaked with screen overflow when sieving, and the screen overflow of rubber mass is about 2～4%, can save material like this, reduces cost.
4, the forming agent pellet performance is good, and the garden tube is granulated to test and shown that the granulation time of SBP forming agent is short, and granulating efficiency obviously is better than rubber mass, pellet form homogeneity, and flowabilities etc. can be compared with the paraffin spraying material.
5, the mixing of forming agent, compacting, false add overhaul period shorten dramatically, and compare with traditional rubber process, and SBP technology does not need primary drying, and the exsiccant time only is 10-15 minute for the second time; The granulation time shortens dramatically, and even need not granulate to obtain the granule performance better than rubber process.The pressed compact of SBP technology does not need drying can carry out the false add inspection, and the rubber process pressed compact generally needs 24-48 hour drying.
The These characteristics of SBP technology has reduced labour intensity, has shortened the production cycle, has reduced the drying plant investment, has saved the steam energy, helps carrying out technology controlling and process and reduces cost.
By two trade mark compounds of YT5, YT15 being added SBP respectively and rubber is crossed 40 mesh sieves and 60 mesh sieves, carry out the compact strength test, draw one group of data such as table 1:
Table 1: compact strength test unit: gram
As can be seen from Table 1, the compact strength of SBP forming agent exceeds 1-3 doubly than the rubber-moulding agent, illustrates that SBP has fabulous wettability to compound, and creep property is good during compression moulding, thereby the compact strength height.
YT5, YT15 performance comparison are listed in table 2
Table 2 YT5, the contrast of YT15 granule performance
As known from Table 2, the homogeneity of SBP material, mobile and loose density all is better than rubber mass, thereby the pressed compact size substance of SBP material is better than the reproducibility of rubber mass.
Below in conjunction with embodiment the present invention is described in further detail.
Example 1:
With weight proportion is that 7 parts of styrene-butadiene-styrenes, 7 parts of polyisoprene, 5 parts of cis-1,4-polybutadiene rubbers, 2 parts of terpine resins are dissolved in 79 parts of No. 120 industrial napthas, mixes and stirs 10 hours after 320 eye mesh screens sieve, and screen underflow is the SBP forming agent.
Example 2:
With weight proportion is 8 parts of styrene-butadiene-styrenes, and 8 parts of polyisoprene, 6 parts of cis-1,4-polybutadiene rubbers, 3 parts of terpine resins are dissolved in 75 parts of No. 120 industrial napthas, mixes to stir after 15 hours and sieves through 320 eye mesh screens, and screen underflow is the SBP forming agent.
Claims (1)
1, a kind of forming agent that is used to produce Wimet is characterized in that it is mixed by component styrene butadiene one vinylbenzene, polyisoprene, cis-1,4-polybutadiene rubber, terpine resin, industrial naptha to form, and the weight proportion of each component is as follows:
Styrene-butadiene-styrene 7-8 part
Polyisoprene 7-8 part
Cis-1,4-polybutadiene rubber 5-6 part
Terpine resin 2-3 part
Industrial naptha 79-75 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00113640A CN1108351C (en) | 2000-08-24 | 2000-08-24 | Forming agent for producing hard alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00113640A CN1108351C (en) | 2000-08-24 | 2000-08-24 | Forming agent for producing hard alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1281882A CN1281882A (en) | 2001-01-31 |
| CN1108351C true CN1108351C (en) | 2003-05-14 |
Family
ID=4583406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00113640A Expired - Fee Related CN1108351C (en) | 2000-08-24 | 2000-08-24 | Forming agent for producing hard alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108351C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369700C (en) * | 2005-12-22 | 2008-02-20 | 株洲钻石切削刀具股份有限公司 | Forming agent for cemented carbide production |
| CN100441343C (en) * | 2006-04-28 | 2008-12-10 | 龙岩市华锐硬质合金工具有限公司 | Cemented carbide vacuum extrusion molding agent and preparation method thereof |
| CN109971395A (en) * | 2019-02-20 | 2019-07-05 | 安徽吉川科技有限公司 | A kind of aluminum weld seam sealing material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2066310A1 (en) * | 1991-04-22 | 1992-10-23 | Masahiro Murakami | Powder mixture for powder metallurgy and binder therefor |
| EP0550820A2 (en) * | 1991-11-22 | 1993-07-14 | The Lubrizol Corporation | Methods for preparing sintered shapes and compositions used therein |
| CN1075904A (en) * | 1992-03-04 | 1993-09-08 | 株式会社神户制钢所 | The binding agent that is used for the powder mixture of powder metallurgy and uses for this reason |
-
2000
- 2000-08-24 CN CN00113640A patent/CN1108351C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2066310A1 (en) * | 1991-04-22 | 1992-10-23 | Masahiro Murakami | Powder mixture for powder metallurgy and binder therefor |
| EP0550820A2 (en) * | 1991-11-22 | 1993-07-14 | The Lubrizol Corporation | Methods for preparing sintered shapes and compositions used therein |
| CN1075904A (en) * | 1992-03-04 | 1993-09-08 | 株式会社神户制钢所 | The binding agent that is used for the powder mixture of powder metallurgy and uses for this reason |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1281882A (en) | 2001-01-31 |
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