CN101550994B - Friction piece used for automotive belt tightener and production method thereof - Google Patents
Friction piece used for automotive belt tightener and production method thereof Download PDFInfo
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- CN101550994B CN101550994B CN2009100305297A CN200910030529A CN101550994B CN 101550994 B CN101550994 B CN 101550994B CN 2009100305297 A CN2009100305297 A CN 2009100305297A CN 200910030529 A CN200910030529 A CN 200910030529A CN 101550994 B CN101550994 B CN 101550994B
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Abstract
The invention relates to a friction piece used for an automotive belt tightener and a production method thereof and particularly belongs to the technical field of the automotive belt tightener. The invention is characterized in that the method comprises the following steps of: taking ultra-high molecular weight polyethylene powder, ultra-high molecular weight polyethylene chopped fiber, nylon fiber, aluminium alloy powder and inorganic non-metal packing, mixing and stirring, adding a friction piece mold, sintering and molding into a product, cooling and slicking to obtain the friction piece. The friction piece can effectively diffuse the heat generated by friction while improving the self wear-resistant performance, thus effectively reducing the abrasion of material and prolonging the service life of the friction piece greatly on the basis of guaranteeing the performance.
Description
Technical field
The present invention relates to a kind of friction piece used for automotive belt tightener and production method thereof, specifically belong to automobile belt tightener technical field.
Background technique
The automobile belt tightener is significant components of automobile engine system, it mainly acts on is the drivign belt of devices such as tensioning automobile engine crankshaft belt pulley driving automobile water pump, power assistance pump for steering, generator, air conditioning pump, so that devices such as auto pump, power assistance pump for steering, generator, air conditioning pump keep proper functioning.
Belt tightener operating ambient temperature height, operating time is long, belt tightener internal friction part when work is in the kinetic friction state always simultaneously, the heating value of rubbing surface is big, at present the failure cause of belt tightener focuses mostly on aspect friction member, so the performance of stretcher internal friction part and life-span will directly have influence on the quality of product of belt tightener.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby provide a kind of friction piece used for automotive belt tightener and production method thereof, can be in the wear-resisting property of increase own, can effectively fricative heat diffusion be gone out, thereby effectively reduce the material abrasion, on the basis of guaranteed performance, promoted the working life of friction member significantly.
According to technological scheme provided by the invention, a kind of friction piece used for automotive belt tightener comprises following component, its formula rate by weight:
70～100 parts of ultrahigh molecular weight polyethylene powders, 5～20 parts of super high molecular weight polythene chopping fibers, 0～20 part of nylon fiber, 0～6 part of Al alloy powder, 0～15 part of inorganic non-metallic filler; Get ultrahigh molecular weight polyethylene powder, super high molecular weight polythene chopping fiber, nylon fiber, Al alloy powder, inorganic non-metallic filler through mixing stirring, add friction member mould sintering and be fixed to goods, can obtain friction member through cooling, the type of repairing again.
The production method of a kind of friction piece used for automotive belt tightener of the present invention, adopt following steps: its formula rate by weight:
1,70～100 parts of ultrahigh molecular weight polyethylene powders, 5～20 parts of super high molecular weight polythene chopping fibers, 0～20 part of nylon fiber, 0～6 part of Al alloy powder and inorganic non-metallic filler are placed on high-speed stirred in the container for 0～15 part, mix and be premix, wherein speed of agitator: 10-200 rev/min, mixing time 10-40 minute;
2, the mixture that mixes is joined in the cavity that forms between mould A and the mould B, vibrated 8～12 minutes, premix is tamped and evenly distribution at mould;
3, the logical warm machine pipeline that oils of mould A part (inner core), oil temperature is made as 130～210 ℃, the logical warm machine pipeline that oils of mould B part (urceolus), oil temperature is made as 220～350 ℃, and sintering 90 minutes～120 minutes obtains the sintering molded article;
4, the sintering molded article is taken out cooling and shaping from mould, chilling temperature: 24～26 ℃; The type of repairing can obtain friction member.
The molecular weight of described ultrahigh molecular weight polyethylene powder and super high molecular weight polythene chopping fiber is 1,500,000～4,000,000.Ultrahigh molecular weight polyethylene powder particle diameter 30-100 order.
Described nylon fiber can be nylon 46, nylon 6 or nylon 66 fiber, its molecular weight 30,000～300,000.
Described inorganic non-metallic filler particles can be in SiO2, CaCO3, silica sand, graphite, the micropore glass pearl a kind of, and the mixture of SiO2, CaCO3, silica sand or graphite and micropore glass pearl.Inorganic non-metallic filler particles particle diameter 30-100 order.Described Al alloy powder particle diameter 50-100 order.
Compared with the prior art the present invention has the following advantages:
Belt tightener internal friction part of the present invention is generally cylindric, and material is a macromolecular material, and it produces sliding friction many contact with metallic material such as aluminum alloy of when work outer surface, and general the fixing of internal surface can not produce slide relative.The crocking resistance of friction member requires high, and abrasion require the smaller the better, to guarantee its working life.Yet in the ordinary course of things, belt tightener is because nearer from motor, the operating temperature of friction member wherein is about 100 ℃, simultaneously because friction generates heat, the friction member surface temperature will reach about 200 ℃, and under high temperature condition, macromolecular material is because softening its wear resistance decrease, abrasion will be multiplied, and influence the working life of friction member greatly and then influence working life of belt tightener.
Friction member of the present invention can effectively discharge the frictional heat that when work produces, and improves the wear-resisting property of material simultaneously, thereby has solved problems such as the abrasion that exist in the existing friction member are big, the life-span is short.
Description of drawings
Fig. 1 is a mould A part-structure schematic representation of the present invention.
Fig. 2 is a unitary mould structural representation of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Embodiment one: the production method of a kind of friction piece used for automotive belt tightener of the present invention, adopt following steps: its formula rate by weight:
As shown in Figure 1, mould A partly comprises oil pipe 1, inner core 3.
As shown in Figure 2, mould B part by oil pipe 1, outer tube 2, just cover 4 and anti-lid 5 form.Oil pipe 1 is arranged on the outer tube 2, just covering 4 and anti-lid 5 cover on outer tube 2.Mould A part inner core 3 is contained in the mould B part outer tube 2.
Get molecular weight and be 2,500,000, particle diameter is 80 parts of 50 purpose ultrahigh molecular weight polyethylene powders, molecular weight is 5 parts of 3,000,000 super high molecular weight polythene chopping fibers, 10 parts of nylon 46 fibers, particle diameter is 3 parts of 60 purpose Al alloy powders, particle diameter is 5 parts of 70 purpose powdered graphites, mix speed of agitator: 100 rev/mins, stirred 30 minutes; The mixture that mixes is joined in the cavity that forms between mould A and the mould B, cover and just cover 4 and anti-lid 5, shake and tamped in 10 minutes.The logical warm machine pipeline that oils of mould A part (inner core), oil temperature is made as 150 ℃, the logical warm machine pipeline that oils of mould B part (outer tube), oil temperature is made as 300 ℃, and sintering 100 minutes obtains sintered article; Behind the cooling and shaping, chilling temperature: 25 ℃; Obtain smooth outer surface, the internal surface aperture is the new belt tensioner friction member of 1um.
Embodiment two: the production method of a kind of friction piece used for automotive belt tightener of the present invention, adopt following steps: its formula rate by weight:
Molecular weight is 3,000,000, particle diameter is 100 parts of 100 purpose ultrahigh molecular weight polyethylene powders, molecular weight is 10 parts of 3,000,000 super high molecular weight polythene chopping fibers, particle diameter is 2 parts of 60 purpose Al alloy powders, particle diameter is 7 parts of 50 purpose glass microballoons, mix, speed of agitator: 90 rev/mins, stirred 20 minutes; The mixture that mixes is joined in the cavity that forms between mould A and the mould B, shake and tamped in 10 minutes.The logical warm machine pipeline that oils of mould A part (inner core), oil temperature is made as 200 ℃, the logical warm machine pipeline that oils of mould B part (outer tube), oil temperature is made as 350 ℃, and sintering 90 minutes obtains sintered article; Behind the cooling and shaping, chilling temperature: 24 ℃; Obtain smooth outer surface, the internal surface aperture is the new belt tensioner friction member of 800nm.
Embodiment three: the production method of a kind of friction piece used for automotive belt tightener of the present invention, adopt following steps: its formula rate by weight:
Molecular weight is 4,000,000, particle diameter is 80 parts of 80 purpose ultrahigh molecular weight polyethylene powders, molecular weight is 6 parts of 1,500,000 superhigh molecular weight polyethylene fibers, particle diameter is 6 parts of 100 purpose Al alloy powders, particle diameter is 80 purpose SiO25 parts, mix, speed of agitator: 90 rev/mins, stirred 20 minutes; The mixture that mixes is joined in the cavity that forms between mould A and the mould B, shake and tamped in 11 minutes.The logical warm machine pipeline that oils of mould A part (inner core), oil temperature is made as 180 ℃, the logical warm machine pipeline that oils of mould B part (outer tube), oil temperature is made as 320 ℃, and sintering 120 minutes obtains sintered article; Behind the cooling and shaping, chilling temperature: 26 ℃; Obtain smooth outer surface, the internal surface aperture is the new belt tensioner friction member of 5um.
Embodiment four: the production method of a kind of friction piece used for automotive belt tightener of the present invention, adopt following steps: its formula rate by weight:
Molecular weight is 1,500,000, particle diameter is 70 parts of 60 purpose ultrahigh molecular weight polyethylene powders, molecular weight is 10 parts of 2,000,000 super high molecular weight polythene chopping fibers, particle diameter is 4 parts of 80 purpose Al alloy powders, particle diameter is 10 parts of 70 purpose powdered graphites, mix, speed of agitator: 120 rev/mins, stirred 15 minutes; The mixture that mixes is joined in the cavity that forms between mould A and the mould B, shake and tamped in 10 minutes.The logical warm machine pipeline that oils of mould A part (inner core), oil temperature is made as 150 ℃, the logical warm machine pipeline that oils of mould B part (outer tube), oil temperature is made as 350 ℃, and sintering 100 minutes obtains sintered article; Behind the cooling and shaping, chilling temperature: 25 ℃; Obtain smooth outer surface, the internal surface aperture is the new belt tensioner friction member of 10um.
Embodiment five: the production method of a kind of friction piece used for automotive belt tightener of the present invention, adopt following steps: its formula rate by weight:
Molecular weight is 3,500,000, particle diameter is 80 parts of 50 purpose ultrahigh molecular weight polyethylene powders, molecular weight is 5 parts of 3,000,000 super high molecular weight polythene chopping fibers, particle diameter is 6 parts of 60 purpose Al alloy powders, particle diameter is 5 parts of 70 purpose powdered graphites, mix, speed of agitator: 100 rev/mins, stirred 20 minutes; The mixture that mixes is joined in the cavity that forms between mould A and the mould B, shake and tamped in 10 minutes.The logical warm machine pipeline that oils of mould A part (inner core), oil temperature is made as 200 ℃, the logical warm machine pipeline that oils of mould B part (outer tube), oil temperature is made as 300 ℃, and sintering 100 minutes obtains sintered article; Behind the cooling and shaping, chilling temperature: 25 ℃; Obtain smooth outer surface, the internal surface aperture is the new belt tensioner friction member of 8um.
Claims (8)
1. friction piece used for automotive belt tightener is characterized in that: comprise following component, its formula rate by weight:
70～100 parts of ultrahigh molecular weight polyethylene powders, 5～20 parts of super high molecular weight polythene chopping fibers, 0～20 part of nylon fiber, 0～6 part of Al alloy powder, 0～15 part of inorganic non-metallic filler;
Get ultrahigh molecular weight polyethylene powder, super high molecular weight polythene chopping fiber, nylon fiber, Al alloy powder, inorganic non-metallic filler through mixing stirring, add friction member mould sintering and be fixed to goods, can obtain friction member through cooling, the type of repairing again.
2. by the described a kind of friction piece used for automotive belt tightener of claim 1, it is characterized in that: the molecular weight of described ultrahigh molecular weight polyethylene powder and super high molecular weight polythene chopping fiber is 1,500,000～4,000,000.
3. by the described a kind of friction piece used for automotive belt tightener of claim 1, it is characterized in that: described ultrahigh molecular weight polyethylene powder particle diameter 30-100 order.
4. by the described a kind of friction piece used for automotive belt tightener of claim 1, it is characterized in that: described nylon fiber can be nylon 46, nylon 6 or nylon 66 fiber, its molecular weight 30,000～300,000.
5. by the described a kind of friction piece used for automotive belt tightener of claim 1, it is characterized in that: what described inorganic non-metallic filler particles can be in SiO2, CaCO3, silica sand, graphite or the micropore glass pearl is a kind of, and the mixture of SiO2, CaCO3, silica sand, graphite and micropore glass pearl.
6. by the described a kind of friction piece used for automotive belt tightener of claim 1, it is characterized in that: described inorganic non-metallic packing material size 30-100 order.
7. by the described a kind of friction piece used for automotive belt tightener of claim 1, it is characterized in that: described Al alloy powder particle diameter 50-100 order.
8. the production method of the described a kind of friction piece used for automotive belt tightener of claim 1 is characterized in that adopting following steps: its formula rate by weight:
(1), 70～100 parts of ultrahigh molecular weight polyethylene powders, 5～20 parts of super high molecular weight polythene chopping fibers, 0～20 part of nylon fiber, 0～6 part of Al alloy powder and inorganic non-metallic filler are placed on high-speed stirred in the container for 0～15 part, mix and be premix, speed of agitator: 10-200 rev/min, mixing time 10-40 minute;
(2), the mixture that mixes is joined in the cavity that forms between mould A and the mould B, vibrated 8～12 minutes, make premix tamp and evenly distribute at mould;
(3), the logical warm machine pipeline that oils of mould A inner core, oil temperature is made as 130～210 ℃, the logical warm machine pipeline that oils of mould B urceolus, oil temperature is made as 220～350 ℃, sintering 90 minutes～120 minutes obtains the sintering molded article;
(4), the sintering molded article is taken out cooling and shaping from mould, chilling temperature: 24～26 ℃; The type of repairing can obtain friction member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100305297A CN101550994B (en) | 2009-04-14 | 2009-04-14 | Friction piece used for automotive belt tightener and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100305297A CN101550994B (en) | 2009-04-14 | 2009-04-14 | Friction piece used for automotive belt tightener and production method thereof |
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| CN101550994A CN101550994A (en) | 2009-10-07 |
| CN101550994B true CN101550994B (en) | 2010-12-08 |
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| CN2009100305297A Expired - Fee Related CN101550994B (en) | 2009-04-14 | 2009-04-14 | Friction piece used for automotive belt tightener and production method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032175A (en) * | 1987-12-10 | 1989-04-05 | 中国科学院长春应用化学研究所 | The ultra-high molecular weight polyethylene composite material that is used for friction materials |
| CN1091758A (en) * | 1993-11-20 | 1994-09-07 | 江苏省宜兴陶瓷公司非金属化工机械厂 | Ultra-high molecular weight polyvinyl composite and preparation method |
| CN1580112A (en) * | 2003-08-07 | 2005-02-16 | 上海化工研究院 | Method for preparing ultrahigh molecular weight polyethylene hopper |
| CN1652911A (en) * | 2002-04-18 | 2005-08-10 | 提克纳有限公司 | Filled granulates consisting of high or ultra-high molecular weight polyethylenes and method for producing said granulates |
| CN101240092A (en) * | 2008-03-14 | 2008-08-13 | 株洲时代新材料科技股份有限公司 | Super-high molecular weight polyethylene low frictional coefficient wearable composite material and its preparation and use |
-
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- 2009-04-14 CN CN2009100305297A patent/CN101550994B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032175A (en) * | 1987-12-10 | 1989-04-05 | 中国科学院长春应用化学研究所 | The ultra-high molecular weight polyethylene composite material that is used for friction materials |
| CN1091758A (en) * | 1993-11-20 | 1994-09-07 | 江苏省宜兴陶瓷公司非金属化工机械厂 | Ultra-high molecular weight polyvinyl composite and preparation method |
| CN1652911A (en) * | 2002-04-18 | 2005-08-10 | 提克纳有限公司 | Filled granulates consisting of high or ultra-high molecular weight polyethylenes and method for producing said granulates |
| CN1580112A (en) * | 2003-08-07 | 2005-02-16 | 上海化工研究院 | Method for preparing ultrahigh molecular weight polyethylene hopper |
| CN101240092A (en) * | 2008-03-14 | 2008-08-13 | 株洲时代新材料科技股份有限公司 | Super-high molecular weight polyethylene low frictional coefficient wearable composite material and its preparation and use |
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Granted publication date: 20101208 Termination date: 20160414 |