CN109570507A - Powder metallurgy hot isostatic pressing high-temperature mold lubricant - Google Patents
Powder metallurgy hot isostatic pressing high-temperature mold lubricant Download PDFInfo
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- CN109570507A CN109570507A CN201811483721.7A CN201811483721A CN109570507A CN 109570507 A CN109570507 A CN 109570507A CN 201811483721 A CN201811483721 A CN 201811483721A CN 109570507 A CN109570507 A CN 109570507A
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- lubricant
- agent
- graphite
- temperature mold
- mold lubricant
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- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
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- 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
- B22F3/02—Compacting only
- B22F2003/026—Mold wall lubrication or article surface lubrication
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention belongs to technical field of refractory materials, more particularly to a kind of release agent at high operating temperatures with lubrication, release effect, a kind of powder metallurgy hot isostatic pressing being specifically related to has the lubricant being made of graphite and hexagonal boron nitride with high-temperature mold lubricant, and the mass ratio of graphite and hexagonal boron nitride is 1:1~9:1 in the lubricant；The high-temperature mold lubricant also includes the thermosetting resin as bonding agent, the molybdenum disulfide as resistance to compression agent, the methyl-silicone oil as dispersing agent and as the industrial alcohol of diluent；Lubricant, bonding agent, resistance to compression agent, dispersing agent, diluent release agent mass percent are as follows: 20~40%, 5~10%, 5~10%, 5~10%, 40~60%.The present invention have it is preferable resist load-bearing capacity, greasy property is excellent at high temperature under high pressure, it is release be easy, not sticking to mould, it is easy to operate, can directly be used in production scene；Suitable for the various alloy powders of HIP sintering.
Description
Technical field
The invention belongs to technical field of refractory materials, and in particular to a kind of to have lubrication, release effect at high operating temperatures
Release agent, and in particular to a kind of powder metallurgy hot isostatic pressing high-temperature mold lubricant is mainly used in powder metallurgy hot isostatic pressing
Molding graphite mold surface.
Background technique
Powder metallurgy is to produce metal powder or made with metal powder (or mixture of metal powder and non-metal powder)
For raw material, by shaping and being sintered, the technology of manufacture metal material, composite material and various types product.Powder smelting
Jin Fayu production ceramics have similar place, belong to sintered powder technique.The forming and sintering of dense product is often in 15-600MPa
Under pressure, required shape is pressed into using the hot isostatic pressing that heating carries out simultaneously with pressurization, sinter molding mould therefor generally uses
High-strength graphite is made.
In powder metallurgy hip moulding sintering process, metal powder can occur at high temperature under high pressure with graphite jig
It is viscous glutinous, graphite jig damage is not only resulted in, will affect the regular shape of alloy product yet.Current way be metal powder with
Mold middle pad alternating floor carbon paper, or one layer of hexagonal boron nitride powder is brushed, or pad one layer of carbon paper, brush six on carbon paper again
Square boron nitride powder.
Carbon paper intensity hardness is lower, and resistance load-bearing capacity is poor, still has metal powder to puncture carbon paper, high temperature in pressure process
Lower and graphite jig occurs viscous glutinous.Hexagonal boron nitride has six side's lamellar structure identical with crystalline flake graphite, inter-layer bonding force
Binding force than B, N atom adjacent in layer is small, but the interatomic electrostatic force of interlayer corresponding B, N is big compared with graphite, therefore six side's nitrogen
It is poorer than graphite to change the greasy property of boron at normal temperature.And boron nitride coating is not sintered in powder metallurgy hot isostatic pressing, together
Sample haves the shortcomings that anti-load-bearing capacity is poor.
Summary of the invention
The object of the present invention is to provide a kind of powder metallurgy hot isostatic pressing high-temperature mold lubricants, make it in pressurized cooking process
In have certain intensity, can barrier metal powder puncture, and have well lubrication, release effect.
The present invention adopts the following technical solutions to accomplish the above objectives:
A kind of powder metallurgy hot isostatic pressing high-temperature mold lubricant, the high-temperature mold lubricant have by graphite and hexagonal boron nitride group
At lubricant, the mass ratio of graphite and hexagonal boron nitride is 1:1~9:1 in the lubricant；The high-temperature mold lubricant
Also include the thermosetting resin as bonding agent, the molybdenum disulfide as resistance to compression agent, the methyl-silicone oil as dispersing agent and
Industrial alcohol as diluent；Lubricant, bonding agent, resistance to compression agent, dispersing agent, diluent release agent mass percent
Are as follows: 20~40%, 5~10%, 5~10%, 5~10%, 40~60%.
The graphite is crystalline flake graphite or amorphous graphite, and graphite powder and hexagonal boron nitride Powder Particle Size are at 3~10 μm, granularity
It crosses slightly, release agent suspension stability is poor, it is poor to smear film forming；Granularity is meticulous, expensive, difficulties in dispersion.
The resistance to compression agent molybdenum disulfide granularity is at 3~10 μm, and granularity is excessively thick, and release agent suspension stability is poor；Granularity mistake
Carefully, puncture resistant ability is poor, difficulties in dispersion, expensive.
The bonding agent is phenolic aldehyde or epoxy resin.
The preparation method of high-temperature mold lubricant of the invention is realized by following measures: by graphite and hexagonal boron nitride, two
Molybdenum sulfide, methyl-silicone oil, industrial alcohol be added colloid mill in disperse it is levigate after, add thermosetting resin, remix grinding and be made.
The application method of high-temperature mold lubricant of the invention is: it is de- to dip in high temperature of the invention with sponge or soft cloth (gauze)
Mould agent wipes mold wall surface, can be used with air-heater drying；It such as finds film layer abrasion or falls off, supplement wipes this hair at any time
Bright high-temperature mold lubricant.
A kind of powder metallurgy hot isostatic pressing high-temperature mold lubricant proposed by the present invention, high-temperature mold lubricant pass through resin solidification shape
Carry out renitency at certain coating strength and acts on lower extruding of the metal powder to graphite jig, wherein amount of resin is very crucial,
Amount of resin is very little, then coating strength is low, anti-pressure ability is weak；Amount of resin is excessive, then film lubricating ability is low, release effect
Difference, tests determined bonding agent resin amount are the 5~10% of release agent gross mass.
Common lubricant graphite or hexagonal boron nitride are all to play a lubricating action, but graphite or six by lamella slippage between crystallites
Poor adhesive force between square boron nitride and metal causes metal powder that can push graphite or hexagonal boron nitride open in turn under pressure
It is directly contacted with graphite jig, pressure acts on lower lubricant effect and weakens.Molybdenum disulfide is also hexagonal flake crystal structure, but two sulphur
The adhesive force of change molybdenum and metal is greater than the binding force of molybdenum disulfide stratiform intergranular, and metal powder is not easy to push molybdenum disulfide open, in turn
It is not contacted with graphite jig, therefore there is better lubricant effect for metal under pressure；Powder metallurgy of the invention
Hot isostatic pressing with added in high-temperature mold lubricant certain molybdenum disulfide further enhance pressure effect under resistance to compression lubricating action.
In conclusion a kind of powder metallurgy hot isostatic pressing high-temperature mold lubricant proposed by the present invention, has preferable resist to bear
Lotus ability, greasy property is excellent at high temperature under high pressure, it is release be easy, not sticking to mould, it is easy to operate, can directly be used in production scene；
Suitable for the various alloy powders of HIP sintering.
Specific embodiment
The present invention is illustrated in conjunction with specific embodiments:
Embodiment 1:
By 100 grams of amorphous graphite, 100 grams of hexagonal boron nitride, 100 grams of molybdenum disulfide, 50 grams of methyl-silicone oil, 600 grams of industrial alcohol
It is placed in colloid mill and is fully ground, be added 50 grams of thermosetting phenolic resin, be sufficiently mixed grinding and high-temperature mold lubricant is made；The demoulding
Viscosity is about 210mPas at normal temperature for agent, and anti-metal powder extrusion capability is strong, be suitable for the higher metalloid of hardness (such as iron,
Nickel etc.) hot pressing.
Embodiment 2:
360 grams of amorphous graphite, 40 grams of hexagonal boron nitride, 50 grams of molybdenum disulfide, 100 grams of methyl-silicone oil, 400 grams of industrial alcohol are set
It is fully ground in colloid mill, is added 50 grams of thermosetting epoxy resin, is sufficiently mixed grinding and high-temperature mold lubricant is made；The release agent
Viscosity is about 650mPas at normal temperature, and anti-metal powder extrusion capability is general, is suitable for a lower metalloid (such as aluminium of hardness
Based alloy) hot pressing.
Embodiment 3:
250 grams of crystalline flake graphite, 50 grams of hexagonal boron nitride, 50 grams of molybdenum disulfide, 50 grams of methyl-silicone oil, 500 grams of industrial alcohol are set
It is fully ground in colloid mill, is added 100 grams of thermosetting epoxy resin, is sufficiently mixed grinding and high-temperature mold lubricant is made；The demoulding
Viscosity is about 300mPas at normal temperature for agent, and anti-metal powder extrusion capability is general, is suitable for the lower metalloid of hardness (such as
Acieral) hot pressing.
Claims (4)
1. a kind of powder metallurgy hot isostatic pressing high-temperature mold lubricant, it is characterised in that: the high-temperature mold lubricant has by graphite
With the lubricant of hexagonal boron nitride composition, the mass ratio of graphite and hexagonal boron nitride is 1:1~9:1 in the lubricant；Institute
The high-temperature mold lubricant stated also include as the thermosetting resin of bonding agent, as the molybdenum disulfide of resistance to compression agent, as dispersing agent
Methyl-silicone oil and industrial alcohol as diluent；Lubricant, bonding agent, resistance to compression agent, dispersing agent, diluent are in release agent
Mass percent are as follows: 20~40%, 5~10%, 5~10%, 5~10%, 40~60%.
2. a kind of high-temperature mold lubricant as described in claim 1, it is characterised in that: the graphite is crystalline flake graphite or earthy stone
Ink, graphite powder and hexagonal boron nitride Powder Particle Size are at 3~10 μm.
3. a kind of high-temperature mold lubricant as described in claim 1, it is characterised in that: the resistance to compression agent molybdenum disulfide granularity is 3
~10 μm.
4. a kind of high-temperature mold lubricant as described in claim 1, it is characterised in that: the bonding agent is phenolic aldehyde or asphalt mixtures modified by epoxy resin
Rouge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811483721.7A CN109570507B (en) | 2018-12-06 | 2018-12-06 | High-temperature release agent for powder metallurgy hot isostatic pressing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811483721.7A CN109570507B (en) | 2018-12-06 | 2018-12-06 | High-temperature release agent for powder metallurgy hot isostatic pressing |
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| CN109570507A true CN109570507A (en) | 2019-04-05 |
| CN109570507B CN109570507B (en) | 2020-07-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831128A (en) * | 2021-09-30 | 2021-12-24 | 宁波江丰电子材料股份有限公司 | Processing method for graphite hot isostatic pressing |
| CN114799066A (en) * | 2022-04-14 | 2022-07-29 | 江苏奇纳新材料科技有限公司 | Alloy test bar manufacturing method and device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1408572A (en) * | 1972-01-19 | 1975-10-01 | Lucas Industries Ltd | Method of producing a boron nitride coating on an article |
| JPS56145131A (en) * | 1980-04-01 | 1981-11-11 | Ishizuka Glass Ltd | Lubricating release agent |
| CN102056689A (en) * | 2008-06-13 | 2011-05-11 | 新日本制铁株式会社 | Method of casting iron-based alloy in semi-melted or semi-hardened state and mold for casting |
| CN102730965A (en) * | 2011-04-02 | 2012-10-17 | 中国科学院兰州化学物理研究所 | High temperature release grease for glass product mold |
| CN104588573A (en) * | 2015-01-09 | 2015-05-06 | 湖南大学 | Water-base graphite lubrication drawing agent |
| CN105132100A (en) * | 2015-08-19 | 2015-12-09 | 北京优材百慕航空器材有限公司 | High-temperature-resistant solid lubricating film |
| CN105419408A (en) * | 2015-07-24 | 2016-03-23 | 洛阳新巨能高热技术有限公司 | Hard alloy substrate sintering anti-adhesion coating |
| CN106010763A (en) * | 2016-06-14 | 2016-10-12 | 山东南山铝业股份有限公司 | Hot-forging lubricating agent and preparation method and application thereof |
| JP2017148817A (en) * | 2016-02-22 | 2017-08-31 | 株式会社神戸製鋼所 | Hot forging method and manufacturing method of hot forged product |
-
2018
- 2018-12-06 CN CN201811483721.7A patent/CN109570507B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1408572A (en) * | 1972-01-19 | 1975-10-01 | Lucas Industries Ltd | Method of producing a boron nitride coating on an article |
| JPS56145131A (en) * | 1980-04-01 | 1981-11-11 | Ishizuka Glass Ltd | Lubricating release agent |
| CN102056689A (en) * | 2008-06-13 | 2011-05-11 | 新日本制铁株式会社 | Method of casting iron-based alloy in semi-melted or semi-hardened state and mold for casting |
| CN102730965A (en) * | 2011-04-02 | 2012-10-17 | 中国科学院兰州化学物理研究所 | High temperature release grease for glass product mold |
| CN104588573A (en) * | 2015-01-09 | 2015-05-06 | 湖南大学 | Water-base graphite lubrication drawing agent |
| CN105419408A (en) * | 2015-07-24 | 2016-03-23 | 洛阳新巨能高热技术有限公司 | Hard alloy substrate sintering anti-adhesion coating |
| CN105132100A (en) * | 2015-08-19 | 2015-12-09 | 北京优材百慕航空器材有限公司 | High-temperature-resistant solid lubricating film |
| JP2017148817A (en) * | 2016-02-22 | 2017-08-31 | 株式会社神戸製鋼所 | Hot forging method and manufacturing method of hot forged product |
| CN106010763A (en) * | 2016-06-14 | 2016-10-12 | 山东南山铝业股份有限公司 | Hot-forging lubricating agent and preparation method and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831128A (en) * | 2021-09-30 | 2021-12-24 | 宁波江丰电子材料股份有限公司 | Processing method for graphite hot isostatic pressing |
| CN113831128B (en) * | 2021-09-30 | 2023-02-28 | 宁波江丰电子材料股份有限公司 | Processing method for graphite hot isostatic pressing |
| CN114799066A (en) * | 2022-04-14 | 2022-07-29 | 江苏奇纳新材料科技有限公司 | Alloy test bar manufacturing method and device |
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| CN109570507B (en) | 2020-07-07 |
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