CN104625042A - Cutting improver and preparation method thereof - Google Patents
Cutting improver and preparation method thereof Download PDFInfo
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- CN104625042A CN104625042A CN201410015185.3A CN201410015185A CN104625042A CN 104625042 A CN104625042 A CN 104625042A CN 201410015185 A CN201410015185 A CN 201410015185A CN 104625042 A CN104625042 A CN 104625042A
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- cutting
- improver
- fluoride
- phosphate
- calcium
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Abstract
The invention discloses a cutting improver and a preparation method of the cutting improver. The cutting improver solves the problem that the strength and toughness of materials are reduced when existing improvers are added. The cutting improver comprises, by weight, 50% of calcium fluoride, 20% of calcium phosphate, 10% of calcium carbonate, 8% of calcium fluosilicate, 2.5% of magnesium fluoride, 2.5% of strontium fluoride, 2.5% of magnesium phosphate and 2.5% of strontium phosphate. The cutting improver solves the problem that the strength and toughness of materials are reduced when existing improvers are added. The cutting improver is applied to the field of various products such as iron-based products, copper-based products, stainless steel-based products and powder metallurgy products formed in common molding, injection molding, hot press molding and other modes.
Description
Technical field
The present invention relates to powder metallurgical technology, particularly relate to a kind of cutting improver and preparation method thereof.
Background technology
Friction and wear is a large obstacle in material processing, they damage cutter, increases power consumption, and the abrasive particles contaminate rapidoprint of wearing and tearing.In cutting process, constantly and chip and workpiece generation severe friction, contact zone is in high temperature, high pressure conditions for the forward and backward knife face of cutter.The friction and wear occurred on cutter can cause cutting tool dulling to lose efficacy, and cutting cannot be carried out, and the severe friction occurred on workpiece then can make machined surface quality worsen.For alleviating friction and wear during machining, usually adopt following methods: the processability 1. improving metallurgy component, 2. cutter aspect is improved, and 3. lubricates in machining.For the processability improving metallurgy component, general in powder smelting process separately or compound add the element that can improve processability, make the chip that is cut tiny, be easy to process and realize cutting technology automation, improve cutting, grinding, drilling efficiency, improve processability.The technology of at present conventional improvement machining property is generally add sulfide etc. in the mixture, also has in mixed powder, to add boron nitride, in addition, also have some to carry out sealing of hole with resin to powdered metal parts, utilize resin to improve machinability.Add additive and can improve machinability, but intensity and the toughness of material can be reduced.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of cutting improver and preparation method thereof.This cutting improver solves the problem reducing the strength of materials and toughness when existing improver adds.Be applied to all kinds of common shaping, injection moulding, iron-based, copper base, stainless steel-based, the sintered metal product field such as hot-forming.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of cutting improver, is characterized in that, be made up of following raw material:
Calcirm-fluoride
Calcium phosphate
Calcium carbonate
Calcium fluosilicate
Magnesium fluoride
Strontium fluoride
Magnesium phosphate
Strontium phosphate.
Preferably, be made up of the raw material of following percentage by weight:
Present invention also offers a kind of preparation method cutting improver, it is characterized in that, comprise the following steps:
1. raw material is taken according to above-mentioned percentage by weight;
2. by step 1. in the raw material that takes through dry powder blender mixing 10min;
3. the flow of feed gas 2. processed through step is crushed to D50 and is less than 5 μm, get product.
The present invention has following outstanding beneficial effect:
1. in sintered metal product, this product is added, it is dispersed in crystal boundary, in high temperature sintering situation, a small amount of a part of product can under high-temperature situation with the Si that exists in iron-base products, the impurity such as P, S produce reaction, and form larger complex chemical compound, in working angles, be more conducive to stress concentrate, substantially improve the cutting of powder metallurgy product, grinding, boring performance.A part can form anti-oxidation rete at tool surface simultaneously, and another part meeting appropriateness fills the micropore of inside parts, reduces micropore to the interrupted impact of cutter, thus protection cutter, tool life.
2. not sulfur-bearing in cutting improver of the present invention, pollutes without sintering, extends the service life of sintering furnace and guipure.Compared with MnS, this product, while not reducing properties of product, significantly can improve the cutting ability of product.Surface of the work after processing does not shade, pure color, gloss appearance, and long-time placement is not easily got rusty.Addition is at 0.4-0.6%, and its cutting ability is 3-10 times of the equal addition of MnS, thus reduces the machining cost such as boring, cutting, grinding of iron-based, copper base, stainless steel and sintered metal product.
Detailed description of the invention
Embodiment 1
A kind of cutting improver, is characterized in that, be made up of the raw material of following percentage by weight: calcirm-fluoride 50%, calcium phosphate 20%, calcium carbonate 10%, calcium fluosilicate 8%, magnesium fluoride 2.5%, strontium fluoride 2.5%, magnesium phosphate 4.5%, strontium phosphate 2.5%.
The preparation method of above-mentioned cutting improver, comprises the following steps:
1. raw material is taken according to above-mentioned percentage by weight;
2. by step 1. in the raw material that takes through dry powder blender mixing 10min;
3. the flow of feed gas 2. processed through step is crushed to D50 and is less than 5 μm, get product.
The performance data of above-mentioned cutting improver is as shown in table 1 below:
Be used in sintered metal product by cutting improver of the present invention, the manganese sulfide contrast conventional relative to market, tests, shown in test report table 2 specific as follows.
Table 2 cuts improver and manganese sulfide contrast test is reported
The cost effectiveness that table 3 the present invention cuts improver and manganese sulfide contrasts
| Name of product | Addition | The market price | Add cost | Effect |
| Cut improver | 0.4％-0.6％ | 40000/ ton | 160-240 | Bright in color is pure |
| Manganese sulfide | 0-5％-0.6％ | 60000/ ton | 300-360 | Workpiece sends out crow, damage sintering furnace |
Conclusion:
The present invention cuts improver and compares with manganese sulfide, and cost is low, and metallographic structure is consistent, and other performance indications are close, can meet current Design of Dies requirement, can substitute manganese sulfide.
Those skilled in the art can carry out various remodeling and change to the present invention.Therefore, present invention covers the various remodeling in the scope falling into claim and equivalent thereof and change.
Claims (3)
1. cut an improver, it is characterized in that, be made up of following raw material:
Calcirm-fluoride
Calcium phosphate
Calcium carbonate
Calcium fluosilicate
Magnesium fluoride
Strontium fluoride
Magnesium phosphate
Strontium phosphate.
2. cutting improver according to claim 1, is characterized in that, is made up of the raw material of following percentage by weight:
3. a preparation method for the cutting improver according to claim 1-2, is characterized in that, comprise the following steps:
1. percentage by weight according to claim 1 takes raw material;
2. by step 1. in the raw material that takes through dry powder blender mixing 10min;
3. the flow of feed gas 2. processed through step is crushed to D50 and is less than 5 μm, get product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015185.3A CN104625042A (en) | 2014-01-14 | 2014-01-14 | Cutting improver and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015185.3A CN104625042A (en) | 2014-01-14 | 2014-01-14 | Cutting improver and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104625042A true CN104625042A (en) | 2015-05-20 |
Family
ID=53204539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410015185.3A Pending CN104625042A (en) | 2014-01-14 | 2014-01-14 | Cutting improver and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104625042A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332904B1 (en) * | 1999-09-13 | 2001-12-25 | Nissan Motor Co., Ltd. | Mixed powder metallurgy process |
| CN1386882A (en) * | 2001-05-17 | 2002-12-25 | 川崎制铁株式会社 | Iron-based mixed powder for powder metallurgy, and iron-based sintering brequette |
| CN101784351A (en) * | 2007-08-20 | 2010-07-21 | 杰富意钢铁株式会社 | Mixing method for raw powder for powder metallurgy and process for producing raw powder for powder metallurgy |
| CN102560249A (en) * | 2010-12-07 | 2012-07-11 | 王平 | Formula and process for powder metallurgy |
| CN103128271A (en) * | 2011-11-25 | 2013-06-05 | 常州精研科技有限公司 | Iron-based mixed powder for powder metallurgy |
-
2014
- 2014-01-14 CN CN201410015185.3A patent/CN104625042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332904B1 (en) * | 1999-09-13 | 2001-12-25 | Nissan Motor Co., Ltd. | Mixed powder metallurgy process |
| CN1386882A (en) * | 2001-05-17 | 2002-12-25 | 川崎制铁株式会社 | Iron-based mixed powder for powder metallurgy, and iron-based sintering brequette |
| CN101784351A (en) * | 2007-08-20 | 2010-07-21 | 杰富意钢铁株式会社 | Mixing method for raw powder for powder metallurgy and process for producing raw powder for powder metallurgy |
| CN102560249A (en) * | 2010-12-07 | 2012-07-11 | 王平 | Formula and process for powder metallurgy |
| CN103128271A (en) * | 2011-11-25 | 2013-06-05 | 常州精研科技有限公司 | Iron-based mixed powder for powder metallurgy |
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| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: LAIWU GUANLONG NANO-TECHNOLOGY CO., LTD. Document name: Notification to Make Rectification |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |
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| WD01 | Invention patent application deemed withdrawn after publication |