CN102729379A - Manufacture method of polyurethane bearing - Google Patents
Manufacture method of polyurethane bearing Download PDFInfo
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- CN102729379A CN102729379A CN2012102502696A CN201210250269A CN102729379A CN 102729379 A CN102729379 A CN 102729379A CN 2012102502696 A CN2012102502696 A CN 2012102502696A CN 201210250269 A CN201210250269 A CN 201210250269A CN 102729379 A CN102729379 A CN 102729379A
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- mould
- polyurethane bearing
- metallic framework
- performed polymer
- deaeration
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Abstract
The invention provides a manufacture method of a polyurethane bearing. The manufacture method comprises the following steps of: a) carrying out sand spraying, acid washing and phosphorizing treatment on a metal framework and a metal framework flange in a polyurethane bearing manufacture mould; b) deaerating a performed polymer; c) adding a chain extender for secondary deaeration; d) preheating the mould and the metal framework; and e) pouring the secondarily-deaerated mixture into the mould, and forming in a sulfidation way. Compared with the prior art, the manufacture method has the following benefit effects that by adopting the manufacture method, the polyurethane bearing is molded for once, and is reliable in quality, simple in production process, easy to operate, and easy to control; and the manufactured polyurethane bearing is free from maintenance, capable of being buffered, light in weight, low in cost, and capable of realizing the modular assembly.
Description
Technical field
The present invention relates to the automobile balance suspension system, particularly a kind of polyurethane bearing preparation method.
Background technology
In traditional heavy-duty car chassis suspension system, adopt traditional steyr spherical bearing mostly, need gear oil lubricated during work.In the process that reality is used; Especially on the road surface when rough and uneven in surface; It is not enough that this usual lubricating system just seems more, and leakage of oil or lubricated not in place appears in spherical bearing easily, causes between trunnion shaft, spherical bearing and axle housing and dry grinds; Shorten the service life of balance shaft assembly, increased user's maintenance cost; Even when serious, balance shaft assembly is damaged and lost efficacy, and causes the accident.The polyurethane bearing that prior art is produced can address the above problem, but the polyurethane bearing can not one-shot forming in the process that moulding is made, and influences its Forming Quality, makes the polyurethane bearing can not reach desirable user mode.
Summary of the invention
The technical problem that the present invention will solve is: overcome the deficiency of prior art, provide a kind of can one-shot forming, reliable quality polyurethane bearing preparation method.
The technical solution adopted for the present invention to solve the technical problems is: a kind of polyurethane bearing preparation method is characterized in that: comprise the steps:
A) metallic framework, the metallic framework flange the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing;
B) performed polymer is carried out deaeration;
C) add chain extender and carry out the secondary deaeration;
D) mould is comprised that metallic framework preheats;
E) mixture after the secondary deaeration is cast in the said mould sulfidization molding.
Preferably, comprise the steps:
A) metallic framework, the metallic framework flange the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing;
B) be that 65～105 ℃, vacuum are to carry out deaeration under 5～10Torr condition 50～70 minutes with performed polymer in temperature;
C) adding the good chain extender of fusing, mix, is that 65～105 ℃, vacuum are to carry out secondary deaeration in 1～3 minute under 5～10Torr condition in temperature;
D) metallic framework is put into mould and mould preheats 90～100 ℃ together;
E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 110～120 ℃ of temperature, pressure 10～20MPa condition.
Preferably, comprise the steps:
A) metallic framework, the metallic framework flange the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing;
B) be that 85 ℃, vacuum are to carry out deaeration under the 8Torr condition 60 minutes with performed polymer in temperature;
C) adding the good chain extender of fusing, mix, is that 85 ℃, vacuum are to carry out secondary deaeration in 2 minutes under the 8Torr condition in temperature;
D) metallic framework is put into mould and mould preheats 95 ℃ together;
E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 115 ℃ of temperature, pressure 15MPa condition.
Preferably; In the performed polymer in the step b)-NCO% content is 4.0～4.4%; Said performed polymer is to be mixed by a certain percentage with the 2.4-toluene di-isocyanate(TDI) by pla-pcl; In temperature is that 110～130 ℃, vacuum are under 5～10Torr condition after the dehydration, synthetic synthetic in agitated reactor.
Preferably; In the performed polymer in the step b)-NCO% content is 4.2%; Said performed polymer is to be mixed by a certain percentage with the 2.4-toluene di-isocyanate(TDI) by pla-pcl, is that 120 ℃, vacuum are under the 8Torr condition after the dehydration in temperature, synthetic synthetic in agitated reactor.
Preferably, the chain extender in the step c) is 3,5-diformazan sulfenyl toluenediamine.
Preferably, the shared mass ratio of the chain extender in the step c) is 11.5～13%.
Preferably, the shared mass ratio of the chain extender in the step c) is 12.7%.
Preferably, metallic framework is the steel of Q345B in the step a).
Compared with prior art, the invention has the beneficial effects as follows: polyurethane bearing preparation method of the present invention, can make the one-shot forming of polyurethane bearing, reliable in quality, production technology is simple, and is easy to operate, easy to control; The polyurethane bearing of producing is non-maintaining, can cushion, in light weight, cost hangs down and can realize that again modularization assembles.
Description of drawings
Fig. 1 is the structural representation of the mould of embodiment of the present invention;
Fig. 2 is the structural representation of the internal mold of mould among Fig. 1.
Be labeled as among the figure:
1, upper press cover; 2, internal mold; 3, go up outer pressing mold; 4, following outer pressing mold; 5, base; 6, metallic framework;
7, metal flange skeleton; 8, positioning table; 9, " U " type inner core; 10, through hole; 11, raised line.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention done further describing:
Like Fig. 1, shown in 2, be the mould of embodiment of the present invention, comprise upper press cover 1, base 5, internal mold 2 and external mold; External mold comprises outer pressing mold 3 and following outer pressing mold 4; Internal mold 2 is fixedly mounted on the base 5, and outer pressing mold 4 is positioned at the peripheral of internal mold 2 and is fixed on the base 5 down, goes up outer pressing mold 3 and is connected down on the outer pressing mold 4; Base 5, internal mold 2 and outer intermode surround the ring cavity that shaft section is " L " type, and upper press cover 1 lid is contained in the upper end of ring cavity;
Between base 5 and internal mold 2, add " U " type inner core 9, the side wall ring of " U " type inner core 9 is offered annular groove around the outside of internal mold 2 bottoms on the inboard diapire of " U " type inner core 9, and card is put the metallic framework 6 of tubular on the annular groove; Plural vertical raised line 11 is set on the outer wall of internal mold 2, and raised line 11 is along the even shape distribution of circumferentially being of internal mold 2; On the inwall of outer pressing mold 4 stepped 2 positioning tables 8 more than two are set down, place the metal flange skeleton 7 of annular on the positioning table 8; Through hole 10 is offered at the middle part of upper press cover 1.
Embodiment one
A kind of polyurethane bearing preparation method comprises the steps: that metallic framework 6, the metallic framework flange 7 a) the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing; B) general-NCO% content is 4.2% performed polymer, is that 65 ℃, vacuum are to carry out deaeration under the 8Torr condition 60 minutes in temperature; C) add fusing good 3,5-diformazan sulfenyl toluenediamine mixes, wherein 3, it is 12.7% that 5-diformazan sulfenyl toluenediamine accounts for mass ratio; In temperature is that 85 ℃, vacuum are to carry out secondary deaeration in 2 minutes under the 8Torr condition; D) metallic framework 6, metallic framework flange 7 are put into mould and mould preheats 95 ℃ together; E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 115 ℃ of temperature, pressure 15MPa condition.
Performed polymer wherein is to be the mixed of 10:3 by pla-pcl and 2.4-toluene di-isocyanate(TDI) by mass ratio, is that 120 ℃, vacuum are under the 8Torr condition after the dehydration in temperature, synthetic synthetic in agitated reactor.
Embodiment two
A kind of polyurethane bearing preparation method comprises the steps: that metallic framework 6, the metallic framework flange 7 a) the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing; B) general-NCO% content is 4.0% performed polymer, is that 65 ℃, vacuum are to carry out deaeration under the 5Torr condition 50 minutes in temperature; C) add fusing good 3,5-diformazan sulfenyl toluenediamine mixes, wherein 3, it is 11.5% that 5-diformazan sulfenyl toluenediamine accounts for mass ratio; In temperature is that 65 ℃, vacuum are to carry out secondary deaeration in 1 minute under the 5Torr condition; D) metallic framework 6, metallic framework flange 7 are put into mould and mould preheats 90 ℃ together; E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 110 ℃ of temperature, pressure 10MPa condition.
Performed polymer wherein is to be the mixed of 10:3.1 by pla-pcl and 2.4-toluene di-isocyanate(TDI) by mass ratio, is that 110 ℃, vacuum are under the 5Torr condition after the dehydration in temperature, synthetic synthetic in agitated reactor.
Embodiment three
A kind of polyurethane bearing preparation method comprises the steps: that metallic framework 6, the metallic framework flange 7 a) the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing; B) general-NCO% content is 4.4% performed polymer, is that 105 ℃, vacuum are to carry out deaeration under the 10Torr condition 70 minutes in temperature; C) add fusing good 3,5-diformazan sulfenyl toluenediamine mixes, wherein 3, it is 13% that 5-diformazan sulfenyl toluenediamine accounts for mass ratio; In temperature is that 105 ℃, vacuum are to carry out secondary deaeration in 3 minutes under the 10Torr condition; D) metallic framework 6, metallic framework flange 7 are put into mould and mould preheats 100 ℃ together; E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 120 ℃ of temperature, pressure 20MPa condition.
Performed polymer wherein is to be the mixed of 10:3.2 by pla-pcl and 2.4-toluene di-isocyanate(TDI) by mass ratio, is that 130 ℃, vacuum are under the 10Torr condition after the dehydration in temperature, synthetic synthetic in agitated reactor.
Embodiment four
A kind of polyurethane bearing preparation method comprises the steps: that metallic framework 6, the metallic framework flange 7 a) the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing; B) general-NCO% content is 4.3% performed polymer, is that 95 ℃, vacuum are to carry out deaeration under the 9Torr condition 65 minutes in temperature; C) add fusing good 3,5-diformazan sulfenyl toluenediamine mixes, wherein 3, it is 12.0% that 5-diformazan sulfenyl toluenediamine accounts for mass ratio; In temperature is that 90 ℃, vacuum are to carry out secondary deaeration in 2 minutes under the 7Torr condition; D) metallic framework 6, metallic framework flange 7 are put into mould and mould preheats 100 ℃ together; E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 110 ℃ of temperature, pressure 12MPa condition.
Performed polymer wherein is to be the mixed of 10:3.3 by pla-pcl and 2.4-toluene di-isocyanate(TDI) by mass ratio, is that 100 ℃, vacuum are under the 9Torr condition after the dehydration in temperature, synthetic synthetic in agitated reactor.
Embodiment five
A kind of polyurethane bearing preparation method comprises the steps: that metallic framework 6, the metallic framework flange 7 a) the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing; B) general-NCO% content is 4.1% performed polymer, is that 90 ℃, vacuum are to carry out deaeration under the 6Torr condition 65 minutes in temperature; C) add fusing good 3,5-diformazan sulfenyl toluenediamine mixes, wherein 3, it is 11.7% that 5-diformazan sulfenyl toluenediamine accounts for mass ratio; In temperature is that 95 ℃, vacuum are to carry out secondary deaeration in 3 minutes under the 7Torr condition; D) metallic framework 6, metallic framework flange 7 are put into mould and mould preheats 95 ℃ together; E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 110 ℃ of temperature, pressure 18MPa condition.
Performed polymer wherein is to be the mixed of 10:3.9 by pla-pcl and 2.4-toluene di-isocyanate(TDI) by mass ratio, is that 130 ℃, vacuum are under the 10Torr condition after the dehydration in temperature, synthetic synthetic in agitated reactor.
Embodiment six
A kind of polyurethane bearing preparation method comprises the steps: that metallic framework 6, the metallic framework flange 7 a) the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing; B) general-NCO% content is 4.2% performed polymer, is that 100 ℃, vacuum are to carry out deaeration under the 6Torr condition 60 minutes in temperature; C) add fusing good 3,5-diformazan sulfenyl toluenediamine mixes, wherein 3, it is 12.2% that 5-diformazan sulfenyl toluenediamine accounts for mass ratio; In temperature is that 95 ℃, vacuum are to carry out secondary deaeration in 2 minutes under the 9Torr condition; D) metallic framework 6, metallic framework flange 7 are put into mould and mould preheats 85 ℃ together; E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 120 ℃ of temperature, pressure 18MPa condition.
Performed polymer wherein is to be the mixed of 10:3.7 by pla-pcl and 2.4-toluene di-isocyanate(TDI) by mass ratio, is that 130 ℃, vacuum are under the 6Torr condition after the dehydration in temperature, synthetic synthetic in agitated reactor.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But everyly do not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and remodeling that above embodiment did, still belong to the protection domain of technical scheme of the present invention according to technical spirit of the present invention.
Claims (9)
1. a polyurethane bearing preparation method is characterized in that: comprise the steps:
A) metallic framework, the metallic framework flange the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing;
B) performed polymer is carried out deaeration;
C) add chain extender and carry out the secondary deaeration;
D) mould is comprised that metallic framework preheats;
E) mixture after the secondary deaeration is cast in the said mould sulfidization molding.
2. polyurethane bearing preparation method as claimed in claim 1 is characterized in that: comprise the steps:
A) metallic framework, the metallic framework flange the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing;
B) be that 65～105 ℃, vacuum are to carry out deaeration under 5～10Torr condition 50～70 minutes with performed polymer in temperature;
C) adding the good chain extender of fusing, mix, is that 65～105 ℃, vacuum are to carry out secondary deaeration in 1～3 minute under 5～10Torr condition in temperature;
D) metallic framework is put into mould and mould preheats 90～100 ℃ together;
E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 110～120 ℃ of temperature, pressure 10～20MPa condition.
3. polyurethane bearing preparation method as claimed in claim 2 is characterized in that: comprise the steps:
A) metallic framework, the metallic framework flange the polyurethane bearing made in the mould carry out sandblast, pickling, phosphatization processing;
B) be that 85 ℃, vacuum are to carry out deaeration under the 8Torr condition 60 minutes with performed polymer in temperature;
C) adding the good chain extender of fusing, mix, is that 85 ℃, vacuum are to carry out secondary deaeration in 2 minutes under the 8Torr condition in temperature;
D) metallic framework is put into mould and mould preheats 95 ℃ together;
E) mixture after performed polymer and the deaeration of chain extender secondary is cast in the mould sulfidization molding under 115 ℃ of temperature, pressure 15MPa condition.
4. according to claim 1 or 2 or 3 described polyurethane bearing preparation methods; It is characterized in that: in the performed polymer in the step b)-NCO% content is 4.0～4.4%; Said performed polymer is to be mixed by a certain percentage with the 2.4-toluene di-isocyanate(TDI) by pla-pcl; In temperature is that 110～130 ℃, vacuum are under 5～10Torr condition after the dehydration, synthetic synthetic in agitated reactor.
5. polyurethane bearing preparation method according to claim 4; It is characterized in that: in the performed polymer in the step b)-NCO% content is 4.2%; Said performed polymer is to be mixed by a certain percentage with the 2.4-toluene di-isocyanate(TDI) by pla-pcl; In temperature is that 120 ℃, vacuum are under the 8Torr condition after the dehydration, synthetic synthetic in agitated reactor.
6. one kind is used for the described polyurethane bearing of claim 5 preparation method, and it is characterized in that: the chain extender in the step c) is 3,5-diformazan sulfenyl toluenediamine.
7. one kind is used for the described polyurethane bearing of claim 6 preparation method, and it is characterized in that: the shared mass ratio of the chain extender in the step c) is 11.5～13%.
8. one kind is used for the described polyurethane bearing of claim 7 preparation method, and it is characterized in that: the shared mass ratio of the chain extender in the step c) is 12.7%.
9. polyurethane bearing preparation method according to claim 8 is characterized in that: metallic framework is the steel of Q345B in the step a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250269.6A CN102729379B (en) | 2012-07-19 | 2012-07-19 | Manufacture method of polyurethane bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250269.6A CN102729379B (en) | 2012-07-19 | 2012-07-19 | Manufacture method of polyurethane bearing |
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| Publication Number | Publication Date |
|---|---|
| CN102729379A true CN102729379A (en) | 2012-10-17 |
| CN102729379B CN102729379B (en) | 2014-08-13 |
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| CN201210250269.6A Expired - Fee Related CN102729379B (en) | 2012-07-19 | 2012-07-19 | Manufacture method of polyurethane bearing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827616A (en) * | 2015-04-30 | 2015-08-12 | 西安近代化学研究所 | Spherical fragment bonding molding die |
| CN105150445A (en) * | 2015-09-06 | 2015-12-16 | 安徽拓盛汽车零部件有限公司 | Production process for vehicle vibration reducing and absorbing parts |
| CN106626191A (en) * | 2016-12-14 | 2017-05-10 | 宜兴市灵谷塑料设备有限公司 | Water pump inner bracket forming mould |
| CN108748824A (en) * | 2018-07-11 | 2018-11-06 | 中国人民解放军海军工程大学 | A kind of PBE type polyurethanes vibration isolator manufacturing method |
| CN109128896A (en) * | 2017-06-15 | 2019-01-04 | 韩华航空航天公司 | Fixed device and the method for manufacturing the elastic component in fixed device |
| CN114957965A (en) * | 2022-07-07 | 2022-08-30 | 福建长泰万泰矿物制品有限公司 | High-heat-resistance polyurethane composition, polyurethane disc and preparation method thereof |
Citations (1)
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| CN1154982A (en) * | 1996-01-16 | 1997-07-23 | 钱幼沧 | Composite wear-resistant structural material |
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2012
- 2012-07-19 CN CN201210250269.6A patent/CN102729379B/en not_active Expired - Fee Related
Patent Citations (1)
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|---|---|---|---|---|
| CN1154982A (en) * | 1996-01-16 | 1997-07-23 | 钱幼沧 | Composite wear-resistant structural material |
Non-Patent Citations (1)
| Title |
|---|
| 陕西省化工研究所: "《聚氨酯弹性体手册》", 31 January 2001, 化学工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827616A (en) * | 2015-04-30 | 2015-08-12 | 西安近代化学研究所 | Spherical fragment bonding molding die |
| CN104827616B (en) * | 2015-04-30 | 2017-01-18 | 西安近代化学研究所 | Spherical fragment bonding molding die |
| CN105150445A (en) * | 2015-09-06 | 2015-12-16 | 安徽拓盛汽车零部件有限公司 | Production process for vehicle vibration reducing and absorbing parts |
| CN106626191A (en) * | 2016-12-14 | 2017-05-10 | 宜兴市灵谷塑料设备有限公司 | Water pump inner bracket forming mould |
| CN109128896A (en) * | 2017-06-15 | 2019-01-04 | 韩华航空航天公司 | Fixed device and the method for manufacturing the elastic component in fixed device |
| CN109128896B (en) * | 2017-06-15 | 2021-11-30 | 韩华航空航天公司 | Fixing device and method for manufacturing elastic member in fixing device |
| CN108748824A (en) * | 2018-07-11 | 2018-11-06 | 中国人民解放军海军工程大学 | A kind of PBE type polyurethanes vibration isolator manufacturing method |
| CN108748824B (en) * | 2018-07-11 | 2023-05-02 | 中国人民解放军海军工程大学 | Manufacturing method of PBE type polyurethane vibration isolator |
| CN114957965A (en) * | 2022-07-07 | 2022-08-30 | 福建长泰万泰矿物制品有限公司 | High-heat-resistance polyurethane composition, polyurethane disc and preparation method thereof |
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| CN102729379B (en) | 2014-08-13 |
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