CN1272529A - Lubricating agent for hot-working treatment of metal - Google Patents
Lubricating agent for hot-working treatment of metal Download PDFInfo
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- CN1272529A CN1272529A CN 00116215 CN00116215A CN1272529A CN 1272529 A CN1272529 A CN 1272529A CN 00116215 CN00116215 CN 00116215 CN 00116215 A CN00116215 A CN 00116215A CN 1272529 A CN1272529 A CN 1272529A
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Abstract
The composition of a lubricant containing no graphite for thermoplastic working of metal is formed from (wt%) 10-55% of laminated oxide or nitride micropowder with lattice structure, 15-40% of phosphate or silicate, 1-30% of acrylic resin and 0.2-10% of thickening agent. The above-mentioned materials are made into lubricant dry powder, and before use, it can be mixed with 2-3 times water, stirred and made into lubricant suspension, so it can be used. Said invented dry powder is easy to transport and store, and low in cost, contains no graphite and has no environmental pollution, and possesses excellent lubricating performance, so that it is applicable to high-temp. processes of rolling, forging and extruding etc. of metal material, in particular it is applicable to mandrel lubrication when hot-rolling seamless steel tube.
Description
The present invention relates to a kind of lubricant of metallized thermoplastic processing usefulness, the not graphitiferous lubricant of particularly a kind of metal fever processing.
Being used for the hot worked lubricant of metal now, is Me by Graphite Powder 99, glass powder, multiple general formula all generally especially for the lubricant of hot rolled seamless steel tube
2OnSiO
2Compositions such as alkalimetal silicate, phosphoric acid salt and borax, add water and stir to use, be the patent application case of CN1143107A as the Chinese patent publication number.Also by being made up of Graphite Powder 99, ethene one acetate ethylene copolymer, dibutyl phthalate, colloidal titania, silane and polyvinyl alcohol, adding water and stir use, is the patent application case of 1122824A as the Chinese patent publication number.This aqua lubricant all includes graphite.In use easily production environment is polluted.To propose especially be Low Carbon Steel Pipe, high alloy steel pipe below using graphite-like lubricant production C:0.1% and stainless steel tube the time, be easy to generate the carburizing phenomenon at steel pipe internal-surface, the carbide of chromium is separated out on crystal boundary, near crystal boundary and crystal boundary, be easy to generate corrosion, thereby reduce the corrosion resisting property of steel pipe, reduce the work-ing life of steel pipe, secondly, because graphite has good electroconductibility, so the pollution of graphite microparticles brings potential safety hazard to electrical equipment etc.In order to address the above problem, pipe mill, C.I.S. south uses the lubricant that contains 55% tripoly phosphate sodium STPP, 20% 3 na phosphates, 10% argentiferous graphite, 10% Quilonum Retard and 5% lithium formate on 350 tube rolling units, its effect is that the steel pipe internal-surface quality improves.Japanese kokai publication hei 5-271684 communique proposes the thermoplasticity processing that a kind of non-graphite lubricant is used for steel.It is that several metal oxide powders and water glass are mixed dissolve softening temperature more than the abundant heat tracing of back at them, obtain glassy mass after treating to cool off fully, again glassy mass is ground into powder and and water glass be mixed and made into the non-graphite lubricant that metal oxide powder-water glass is.For example: the fusing point of FeO powder is 1367 ℃, Na
2SiO
3Fusing point be 1089 ℃, their mixed melting resultant of reaction NaOFeOSiO
2Fusing point be 976 ℃, usually the temperature during tube rolling is about 1100 ℃.Therefore utilizing resultant of reaction to become fluid state is lubricated.Mainly there is the problem of two aspects in this series lubricant agent: the one, and the manufacturing process complexity of lubricant, the 2nd, when lubricant was not melt into fluid as yet in the starting stage of work, lubricity was relatively poor.
The above various lubricant is the wet type lubricant, thereby volume is bigger, transportation and storage inconvenience, and relative costs is higher.
The object of the present invention is to provide a kind of not graphitiferous lubricant for heat processing of metals, can be made into lubricant dry powder, be convenient to transportation and storage, add before use and can use after suitable quantity of water stirs; Also can be made into lubricant-suspension, for directly using.This lubricant lubricity is good, does not influence the hot-work metallicity, is applicable to the technologies such as rolling, forging, extrusion of metal under the condition of high temperature, the mandrel lubrication when being particularly useful for hot rolled seamless steel tube.
For achieving the above object, the present invention adopts following technical proposals:
A kind of lubricant for heat processing of metals is characterized in that by weight, and its constitutive material proportioning is:
The oxide compound of layer-lattice structure or nitride micro mist 10～50%,
Phosphoric acid salt or silicate 15～40%,
Acrylic resin 1～30%,
Thickening material 0.2～10%,
Be mixed with the lubricant power-product with above-mentioned composition.This lubricant power-product adds the water of 2-3 times of weight before use, becomes lubricant-suspension after stirring 30 minutes, and the flow viscosity of this lubricant-suspension is No. 6 flow cups (ISO2431-93) 6～60 seconds, and pH=7～8 can be used.
The oxide compound of above-mentioned layer-lattice structure or nitride can be to choose any one kind of them in talcum, mica and the boron nitride, wherein preferentially select talcum for use.
Above-mentioned phosphoric acid salt or silicate can be to choose any one kind of them or several composition in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, SODIUM PHOSPHATE, MONOBASIC, SODIUM PHOSPHATE, MONOBASIC ammonium, trisodium phosphate, water glass and the potassium silicate.
Above-mentioned acrylic resin can be diallyl phthalate resin, polymethacrylate, α-Qing Jibingxisuanzhi, propylene fine-choose any one kind of them in the acrylate, wherein preferentially select polymethacrylate for use.
Above-mentioned thickening material can be to choose any one kind of them in alkylcellulose, polyvinyl alcohol, starch, dextrin and the polyacrylic acid an alkali metal salt, wherein preferentially selects alkylcellulose for use.
The particle diameter of the oxide compound of above-mentioned layer-lattice structure or nitride micro mist is 5～100 μ m, and optimum grain-diameter is 10～50 μ m; The particle diameter of acrylic resin is 5～100 μ m, and optimum grain-diameter is 5～50 μ m.
A kind of lubricant-suspension of above-mentioned lubricant for heat processing of metals, it is characterized in that above-mentioned lubricant dry powder adds the water of 2～3 times of weight, after stirring, make the lubricant-suspension product, the flow viscosity of this lubricant-suspension is No. 6 flow cups (ISO2431-93) 6～60 seconds, pH=7～8.
Anabolic action mechanism to lubricant of the present invention is described further below:
Phosphoric acid salt that uses among the present invention such as tripoly phosphate sodium STPP become molten at 622 ℃, begin to produce trisodium phosphate simultaneously; The fusing point of Sodium hexametaphosphate 99 is 616 ℃; 60 ℃ of SODIUM PHOSPHATE, MONOBASIC fusing points lose crystal water at 100 ℃, decompose the coking sodium phosphate when continuing to be heated to 190 ℃-210 ℃; 280 ℃-300 ℃ are decomposed into sodium-metaphosphate; Microcosmic salt fusion in the time of 79 ℃, and decompose ammonification, water and Sodium phosphate dibasic loses ammonia and becomes trisodium phosphate with water in the time of 200 ℃, 243 ℃ of vitrify Sodium hexametaphosphate 99s again; The fusing point of trisodium phosphate is 880 ℃; The fusing point of potassium silicate is 976 ℃; The fusing point of water glass is 1088 ℃.Showing more than 800 ℃ its activation performance except phosphorus as from the foregoing, phosphoric acid salt is more than 800 ℃, silicate is being fused solution more than 900 ℃, and be coated on the effect of playing secluding air around the talcum micro mist, form the liquid friction condition simultaneously, provide auxiliaring effect for talcum is lubricated, reducing rubs examines coefficient.In addition phosphoric acid salt the same with silicate it can prevent instrument and workpiece adhesion again, under rete disruptive situation, can cover one deck liquid phase lubricant film rapidly once more.
The acroleic acid resin that the present invention uses continuous cracking under hot conditions goes out gas, helps to improve the high temperature lubricating performance.
The thickening material that uses among the present invention, the viscosity of preferentially selecting for use the carboxymethyl cellulose in the alkylcellulose usually to regulate lubricant also helps to stop the sedimentation and the cohesion of solid micro-powder simultaneously.
The present invention compared with prior art, have following conspicuous outstanding feature and remarkable advantage: lubricant 1. of the present invention can be made into lubricant dry powder or two kinds of products of lubricant-suspension, its lubricant power-product is convenient to transportation, and pot life is longer, and price is more cheap.2. each component among the present invention and high-temperature decomposition product thereof can not produce physics and chemical reaction to tool and mould and workpiece, simultaneously in the hot processing temperature scope except that organic compound decomposes, most of mineral compound all is in the liquid friction condition, even tool and mould can directly not contact with workpiece yet in hot procedure, this helps improving the work-ing life of tool and mould and the surface quality of workpiece.3. lubricant of the present invention does not contain graphite, can not influence the quality of hot-work metal, the environmental pollution that can not cause because of Graphite Powder 99 in preparation process and use.4. lubricant of the present invention has lubricity preferably, especially has the excellent high-temperature lubrication performance, is applicable to the technologies such as rolling, forging, extrusion of metal under the condition of high temperature, the mandrel lubrication when being particularly useful for hot rolled seamless steel tube.
List composition and lubricant frictional coefficient: the embodiment one under differing temps of two embodiment of the present invention below:
Talcum 43.1%
SODIUM PHOSPHATE, MONOBASIC 12.8%
Microcosmic salt 12.8%
Sodium hexametaphosphate 99 14.4%
Polymethacrylate 14.4%
Carboxymethyl cellulose 2.5%
Water adds 2 times of weight water
No. 6 flow cups 30 seconds
850 ℃ 950 ℃ 1050 ℃ of garden ring temperature
Frictional coefficient 0.049 0.072 0.093 embodiment two
Talcum 55%
SODIUM PHOSPHATE, MONOBASIC 11.2%
Tripoly phosphate sodium STPP 11.2%
Propylene is fine-olefin(e) acid ester 18.6%
Carboxymethyl cellulose 4%
Water adds 3 times of weight water
No. 6 flow cups 25 seconds
850 ℃ 950 ℃ 1050 ℃ of garden ring temperature
Frictional coefficient 0.055 0.076 0.0100
Claims (7)
1. a lubricant for heat processing of metals is characterized in that by weight, and its constitutive material proportioning is: the oxide compound of layer-lattice structure or nitride micro mist 10～55%,
Phosphoric acid salt or silicate 15～40%,
Acrylic resin 1～30%,
Thickening material 0.2～10%,
Be mixed with lubricant dry powder with above-mentioned composition.
2. lubricant for heat processing of metals according to claim 1 is characterized in that the oxide compound of layer-lattice structure or nitride are to choose any one kind of them in talcum, mica and the boron nitride, wherein preferentially selects the talcum micro mist for use.
3. lubricant for heat processing of metals according to claim 1 is characterized in that phosphoric acid salt or silicate are to choose any one kind of them or several composition in tripoly phosphate sodium STPP, sodium hexametaphosphate, SODIUM PHOSPHATE, MONOBASIC ammonium, trisodium phosphate, sodium silicate and the potassium silicate.
4. lubricant for heat processing of metals according to claim 1, it is characterized in that acrylic resin be diallyl phthalate resin, polymethacrylate, α-Qing Jibingxisuanzhi, propylene fine-choose any one kind of them in the acrylate, wherein preferentially select polymethacrylate for use.
5. lubricant for heat processing of metals according to claim 1 is characterized in that thickening material is to choose any one kind of them in alkylcellulose, polyvinyl alcohol, starch, dextrin and the polyacrylic acid an alkali metal salt. wherein preferentially select alkylcellulose for use.
6. according to claim 1 or 2 or 3 or 4 or 5 described lubricant for heat processing of metals, it is characterized in that the oxide compound of layer-lattice structure or the particle diameter of nitride micro mist are 5～100 μ m, optimum grain-diameter is 10～50 μ m; The particle diameter of acrylic resin is 5～100 μ m, and optimum grain-diameter is 5～50 μ m.
7. lubricant-suspension according to the described lubricant for heat processing of metals of claim 1, it is characterized in that lubricant dry powder adds the water of 2-3 times of weight, after stirring, make lubricant-suspension, the flow viscosity of lubricant-suspension is No. 6 flow cups (ISO2431-93) 6-60 second, pH=7-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00116215 CN1272529A (en) | 2000-05-30 | 2000-05-30 | Lubricating agent for hot-working treatment of metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00116215 CN1272529A (en) | 2000-05-30 | 2000-05-30 | Lubricating agent for hot-working treatment of metal |
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| CN1272529A true CN1272529A (en) | 2000-11-08 |
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| CN 00116215 Pending CN1272529A (en) | 2000-05-30 | 2000-05-30 | Lubricating agent for hot-working treatment of metal |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327025C (en) * | 2002-07-01 | 2007-07-18 | 日立金属株式会社 | Material for sliding parts having self-lubricity and wire material for piston ring |
| CN101811173A (en) * | 2010-04-28 | 2010-08-25 | 启东尤希路化学工业有限公司 | Graphite-free high-performance environment-friendly hot forging processing liquid |
| CN102092987A (en) * | 2010-12-02 | 2011-06-15 | 二重集团（德阳）重型装备股份有限公司 | Thermal-insulation adhesive for die-forging of forge pieces and preparation method thereof |
| CN102367394A (en) * | 2011-09-14 | 2012-03-07 | 安徽省岳西缸套有限公司 | Lubricating agent for metal processing |
| CN102533423A (en) * | 2011-12-02 | 2012-07-04 | 华中科技大学 | Non-graphite type lubricant for hot die forging of metal and preparation method of non-graphite type lubricant |
| CN104450142A (en) * | 2014-11-28 | 2015-03-25 | 衡阳市金化科技有限公司 | High-temperature lubricant containing metal hydroxides |
| CN107739650A (en) * | 2017-10-17 | 2018-02-27 | 宝鸡市铭坤有色金属有限公司 | A kind of Metalworking lubricant and preparation method thereof |
| CN109554209A (en) * | 2018-08-11 | 2019-04-02 | 张骏杰 | A kind of dedicated profit pipe agent of concrete pumping equipment and preparation method thereof |
| CN112552013A (en) * | 2020-12-23 | 2021-03-26 | 山东鲁阳节能材料股份有限公司 | Adhesive for high-temperature self-adhesive refractory blanket, preparation method of adhesive and high-temperature self-adhesive refractory blanket |
| CN113969207A (en) * | 2021-04-27 | 2022-01-25 | 暨南大学 | Metal hot rolling forming anti-friction, anti-wear and anti-oxidation lubricant, and preparation method and application thereof |
-
2000
- 2000-05-30 CN CN 00116215 patent/CN1272529A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327025C (en) * | 2002-07-01 | 2007-07-18 | 日立金属株式会社 | Material for sliding parts having self-lubricity and wire material for piston ring |
| CN101811173A (en) * | 2010-04-28 | 2010-08-25 | 启东尤希路化学工业有限公司 | Graphite-free high-performance environment-friendly hot forging processing liquid |
| CN102092987A (en) * | 2010-12-02 | 2011-06-15 | 二重集团（德阳）重型装备股份有限公司 | Thermal-insulation adhesive for die-forging of forge pieces and preparation method thereof |
| CN102367394A (en) * | 2011-09-14 | 2012-03-07 | 安徽省岳西缸套有限公司 | Lubricating agent for metal processing |
| CN102533423A (en) * | 2011-12-02 | 2012-07-04 | 华中科技大学 | Non-graphite type lubricant for hot die forging of metal and preparation method of non-graphite type lubricant |
| CN102533423B (en) * | 2011-12-02 | 2013-10-30 | 华中科技大学 | Non-graphite type lubricant for hot die forging of metal and preparation method of non-graphite type lubricant |
| CN104450142A (en) * | 2014-11-28 | 2015-03-25 | 衡阳市金化科技有限公司 | High-temperature lubricant containing metal hydroxides |
| CN104450142B (en) * | 2014-11-28 | 2017-12-15 | 湖南金化科技集团有限公司 | A kind of high-temperature lubricant of metal hydroxide-containing |
| CN107739650A (en) * | 2017-10-17 | 2018-02-27 | 宝鸡市铭坤有色金属有限公司 | A kind of Metalworking lubricant and preparation method thereof |
| CN109554209A (en) * | 2018-08-11 | 2019-04-02 | 张骏杰 | A kind of dedicated profit pipe agent of concrete pumping equipment and preparation method thereof |
| CN112552013A (en) * | 2020-12-23 | 2021-03-26 | 山东鲁阳节能材料股份有限公司 | Adhesive for high-temperature self-adhesive refractory blanket, preparation method of adhesive and high-temperature self-adhesive refractory blanket |
| CN113969207A (en) * | 2021-04-27 | 2022-01-25 | 暨南大学 | Metal hot rolling forming anti-friction, anti-wear and anti-oxidation lubricant, and preparation method and application thereof |
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