CN1098293C - Elastic composite material of high-molecular copolymer for crusher and preparing process thereof - Google Patents
Elastic composite material of high-molecular copolymer for crusher and preparing process thereof Download PDFInfo
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- CN1098293C CN1098293C CN99122501A CN99122501A CN1098293C CN 1098293 C CN1098293 C CN 1098293C CN 99122501 A CN99122501 A CN 99122501A CN 99122501 A CN99122501 A CN 99122501A CN 1098293 C CN1098293 C CN 1098293C
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Abstract
The present invention relates to a high molecular copolymer elastic composite material for a crusher in mining equiment and the technology thereof. The formula of a product comprises caprolactam, potassium titanate whisker, sodium hydroxide as a catalyst, and a polyurethane prepolymer. The technology comprises: the caprolactam is added into a reaction kettle to be heated until the caprolactam is dissolved; the sodium hydroxide as the catalyst is added into the reaction kettle, and vacuum is formed into the reaction kettle by a vacuum pump; the reaction kettle is heated, and the polyurethane prepolymer is heated; three kinds of dissolved liquid are poured into a pouring ladle to be mixed; a mould is preheated; the liquid in the pouring ladle is poured into the mould to be formed; the mould is removed, and the product is formed. The product has the advantages of unique formula, easy technology, reliable performance, long life, difficult crack generation, high abrasion resistance and high tenacity.
Description
The present invention relates to a kind of preparation method who is used for the polymer copolymerization body elasticity matrix material of crusher eccentric bushing in the mining equiment.
At present, the former employing Babbitt metal cast of the eccentric bushing in the domestic and international mining equiment production gyratory crusher is used.This material uses shock resistance extremely low under the condition of low-speed heave-load, makes that the work-ing life of eccentric bushing is short, and short life has only one month.And adopt modification Mc nylon material to replace Babbitt metal that following shortcoming is arranged: 1, nylon 12 materials need import and cost an arm and a leg, very shortage in the international market, and production cost increases; Though 2, the nylon 12 modification Mc nylon toughness of making additive increases, tensile strength descends, and ageing resistance is poor slightly.Generally adopt the metallic substance manufacturing in addition and have a negative impact, cause eccentric bushing at thump or enter under the foreign matter situation and to produce metal fines and disintegrating slag, crack because of wear resistance and toughness are not enough again, make the eccentric bushing life-span shorter, change cumbersome, influence the work period, bring very big labour intensity to the workman, also influence finishing of production task, product cost rises, efficient is lower and make, and therefore develop a kind of preparation method who is used for the polymer copolymerization body elasticity matrix material of crusher eccentric bushing is scientific research task anxious to be solved both at home and abroad always.
Purpose of the present invention be exactly conceive the science novelty in order to provide a kind of, prescription is unique, technology is easy to manufacture, cost value is cheap, product performance are reliable, the life-span is grown, it is easy to maintenance to be difficult for cracking, use, have higher wear resistance and toughness, a kind of preparation method who is used for the polymer copolymerization body elasticity matrix material of crusher eccentric bushing of minimizing labor strength.
The object of the present invention is achieved like this: its product technology is, 1, adds hexanolactam, the reactor of packing into is heated to 80-90 ℃ with coal gas makes its fusing, make with vacuum pump and to form vacuum in the reactor, continue to be heated to 115-125 ℃, in reactor, add catalyzer sodium hydroxide, make with vacuum pump to form vacuum in the reactor, reheat to 140 ℃; 2, add hexanolactam in addition, heating is evacuated to 120 ℃, adds catalyzer sodium hydroxide in reactor, makes with vacuum pump to form vacuum reheat to 140 ℃ in the reactor again; 3, the Polyurethane performed polymer is heated to 140 ℃, with 1,2,3, three kind of melt pour in the casting ladle and mix, when carrying out above-mentioned manufacturing process, also with mould and die preheating to 170 ℃, with the processing method of static cast, pour liquid in the casting ladle in the mould 30 minutes aftershapings together, the demoulding is sent into and is heated to 135 ℃ in the oil then, the processing that eliminates stress forms product; The polymer copolymerization body elasticity matrix material that is used for the crusher eccentric bushing is to be obtained by above-mentioned preparation method, and its formula for a product is hexanolactam 70-75%, potassium titanate crystal whisker 8-10%, catalyzer sodium hydroxide 0.07%, Polyurethane performed polymer 15-20%.Main points of the present invention are its prescription and processing method.Its principle of work and using method are: because gyratory crusher is the major equipment that slightly breaks ore, extremely work under the harsh conditions at environment, adopt the metal eccentric bushing because of wear resistance and toughness deficiency, cause eccentric bushing to crack, metal fines and disintegrating slag appear, cause eccentric bushing because of wear resistance and toughness deficiency, cause eccentric bushing to crack, metal fines and disintegrating slag occur, cause the eccentric bushing life-span shorter, though use the eccentric bushing of modification Mc nylon cast to strengthen toughness, improve work-ing life relatively, but 12 lactan need import, world market shortage, cost an arm and a leg, can't satisfy the production needs.Use the shock resistance that polymer copolymerization body elasticity matrix material (potassium titanate crystal whisker+PTMG Polyurethane performed polymer+hexanolactam) has not only improved eccentric bushing, also increased wear resistance, most importantly its intensity has also increased much than modification Mc nylon, and starting material are domesticized, satisfy production requirement, reduce cost, improved the work-ing life of eccentric bushing more.
Product concrete structure of the present invention is provided by accompanying drawing.
Fig. 1 is a product structure synoptic diagram of the present invention.
Product of the present invention and process implementing example are: get 31 kilograms of 117 kilograms of hexanolactams and potassium titanate crystal whiskers, the reactor of packing into is heated to 80-90 ℃ with coal gas dissolves it, make with vacuum pump and to form vacuum in the reactor, continue to be heated to 115-125 ℃, in reactor, add 0.15 kilogram in catalyzer sodium hydroxide, make to form vacuum in the reactor reheat to 140 ℃ with vacuum pump; 2, add 117 kilograms of hexanolactams in addition, heating is evacuated to 120 ℃, adds 0.15 kilogram in catalyzer sodium hydroxide in reactor, makes with vacuum pump to form vacuum reheat to 140 ℃ in the reactor again; 3,62 kilograms Polyurethane performed polymer is heated to 140 ℃.With 1,2,3, three kind of dissolving liquid pour in the casting ladle and mix.When carrying out above-mentioned manufacturing process, also,, pour liquid in the casting ladle in the mould 30 minutes aftershapings together with the processing method of static cast with mould and die preheating to 170 ℃.The demoulding is sent into and is heated to 135 ℃ in the oil then, and the processing that eliminates stress forms product.
A kind of polymer copolymerization body elasticity composite manufacture method and prior art for crusher eccentric bushing Compare, have design science novelty, prescription is unique, technology is easy to manufacture, cost price is cheap, properties of product Reliably, the life-span long, be difficult for cracking, use and maintenance is convenient, have higher wearability and toughness, subtract The advantage of few labor strength will be widely used in the mining equiment.
Claims (2)
1, a kind of preparation method who is used for the polymer copolymerization body elasticity matrix material of crusher eccentric bushing, it is characterized in that: its product technology is, 1, adds hexanolactam, the reactor of packing into is heated to 80-90 ℃ with coal gas makes its fusing, make with vacuum pump to form vacuum in the reactor, continue to be heated to 115-125 ℃, in reactor, add catalyzer sodium hydroxide, make to form vacuum in the reactor reheat to 140 ℃ with vacuum pump; 2, add hexanolactam in addition, heating is evacuated to 120 ℃, adds catalyzer sodium hydroxide in reactor, makes with vacuum pump to form vacuum reheat to 140 ℃ in the reactor again; 3, the Polyurethane performed polymer is heated to 140 ℃; With 1,2,3, three kind of melt pour in the casting ladle and mix, when carrying out above-mentioned manufacturing process, also with mould and die preheating to 170 ℃, processing method with static cast, pour liquid in the casting ladle in the mould 30 minutes aftershapings together, the demoulding is sent into and is heated to 135 ℃ in the oil then, and the processing that eliminates stress forms product.
2, a kind of preparation method who is used for the polymer copolymerization body elasticity matrix material of crusher eccentric bushing according to claim 1 is characterized in that: the said polymer copolymerization body elasticity matrix material that is used for the crusher eccentric bushing is to be obtained by the described preparation method of claim 1; Its formula for a product is hexanolactam 70-75%, potassium titanate crystal whisker 8-10%, catalyzer sodium hydroxide 0.07%, Polyurethane performed polymer 15-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99122501A CN1098293C (en) | 1999-11-04 | 1999-11-04 | Elastic composite material of high-molecular copolymer for crusher and preparing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99122501A CN1098293C (en) | 1999-11-04 | 1999-11-04 | Elastic composite material of high-molecular copolymer for crusher and preparing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1270181A CN1270181A (en) | 2000-10-18 |
| CN1098293C true CN1098293C (en) | 2003-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99122501A Expired - Fee Related CN1098293C (en) | 1999-11-04 | 1999-11-04 | Elastic composite material of high-molecular copolymer for crusher and preparing process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN1098293C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD298253A5 (en) * | 1988-09-27 | 1992-02-13 | Basf Schwarzheide Gmbh,De | MODIFIED POLYAMIDE WITH INCREASED IMPACT |
| JPH06271664A (en) * | 1993-03-23 | 1994-09-27 | Mitsuboshi Belting Ltd | Production of monomer-cast polyamide resin article |
| JPH0710956A (en) * | 1993-06-22 | 1995-01-13 | Sunstar Eng Inc | Easily peelable polymer composition |
-
1999
- 1999-11-04 CN CN99122501A patent/CN1098293C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD298253A5 (en) * | 1988-09-27 | 1992-02-13 | Basf Schwarzheide Gmbh,De | MODIFIED POLYAMIDE WITH INCREASED IMPACT |
| JPH06271664A (en) * | 1993-03-23 | 1994-09-27 | Mitsuboshi Belting Ltd | Production of monomer-cast polyamide resin article |
| JPH0710956A (en) * | 1993-06-22 | 1995-01-13 | Sunstar Eng Inc | Easily peelable polymer composition |
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| Publication number | Publication date |
|---|---|
| CN1270181A (en) | 2000-10-18 |
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