Polyester-aramid guide bearing, thrust disc friction plate and manufacturing method thereof

A manufacturing method and thrust disc technology, which are applied to bearings, bearing components, shafts and bearings, etc., can solve the problems of polluted environment, poor wear resistance, complicated procedures, etc., and achieve good acid and alkali resistance, long service life, improved The effect of abrasion resistance and mechanical strength

Active Publication Date: 2010-10-20

沈阳深潜泵业有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0005] The invention provides a polyester or aramid guide bearing and a thrust disc friction plate and ...

Method used

The invention provides a kind of terylene, aramid fiber guide bearing and thrust disc friction plate, it is characterized in that: guide bearing 1 and thrust disc friction plate 3 made of polyester or aramid constitute a pair of friction pairs, The guide bearing 1 and the friction plate 3 of the thrust plate are used at the same time, and the friction effect is the best when both of them are made of polyester or aramid. Good alkalinity and wide range of high temperature resistance; as shown in Figure 1, the outside of the guide ...

Abstract

The invention provides a polyester-aramid guide bearing, a thrust disc friction plate and a manufacturing method thereof. The invention is characterized in that the guide bearing made of polyester and aramid and the thrust disc friction plate form a friction pair; the outer part of the guide bearing is a tube wall, and a water flow groove is arranged in the tube wall; and the thrust disc friction plate is arranged on a cast iron base. The manufacturing method comprises the following steps: drying polyester-aramid resin cloth soaked with polyvinyl butyral modified phenolic resin, extruding the cloth with a tube coiling machine, placing the cloth into a guide bearing compression die and a thrust disc friction plate formation die, and pressing for formation under the certain pressure and certain temperature. The invention improves the wear resistance and mechanical strength of the polyester-aramid guide bearing and the thrust disc friction plate manufactured in the method. Moreover, the polyester-aramid guide bearing and the thrust disc friction plate have the advantages of simple structure, low cost, less pollution, long service life and the like.

Application Domain

Bearing componentsSliding contact bearings

Technology Topic

PolyesterCast iron +8

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Examples

Experimental program(5)

Example Embodiment

[0039] Example 1

[0040] A polyester or aramid guide bearing and thrust plate friction sheet, characterized in that: a guide bearing 1 made of polyester or aramid and a thrust plate friction sheet 3 form a pair of friction pairs; the outside of the guide bearing 1 is a tube wall 15. A water flow groove 16 is also provided in the pipe wall 15; the thrust plate friction piece 3 and the cast iron base 4 constitute the thrust plate 2, and the thrust plate friction piece 3 is arranged on the cast iron base 4; the thickness of the guide bearing 1 The thickness of the friction sheet 3 of the thrust plate is 0.5mm.

[0041] A manufacturing method of the above-mentioned polyester and aramid guide bearing and thrust plate friction sheet is characterized in that:

[0042] The method consists of the following steps:

[0043] (1) Manufacture of guide bearing: impregnate polyester or aramid cloth with polyvinyl butyral modified phenolic resin for 2 hours, and dry it to obtain polyester or aramid resin cloth 5 for standby. The nylon resin cloth 5 is wound on the core mold 7, after being squeezed tightly by three pressing rollers, the prefabricated tube 8 with the core mold 7 is removed and placed in the cavity 17 of the guide bearing pressing mold 9 at a temperature of 70℃ Here, a 50-ton hot press is used to press 5 tubes in parallel at a time, and the gauge pressure is 170kg/cm 2 , The temperature is 165℃, keep the pressure and temperature of the gauge for 30 minutes, demold, take out the polyester or aramid bearing tube, and make it into a polyester or aramid guide bearing 1 after machining;

[0044] (2) Manufacture of the thrust plate friction sheet: the prepared polyester or aramid resin cloth 5 after air-drying in step (1) is directly pressed with the thrust plate friction sheet forming mold 10, using a 50-ton hot press with gauge pressure 70kg/cm 2 , The temperature is 175 ℃, keep the pressure and temperature of the gauge for 30 minutes, demold, after the mold is machined into the thrust plate friction piece 3, the thrust plate friction piece 3 is bonded to the cast iron base 4 to obtain polyester or Aramid thrust plate 2; thus completing the manufacture of polyester, aramid guide bearing and thrust plate friction sheet.

[0045] The polyester or aramid resin 5 cloth described in the above step (1) and step (2) contains 30% by weight of polyvinyl butyral modified phenolic resin.

[0046] The tube winding machine 6 described in the above step (1) is composed of a heating container 11 and three pressure rollers arranged above it. Among the three pressure rollers, the upper part is the upper roller 12, the lower part is the front roller 13, and the rear part is For the rear roller 14.

[0047] The cavity 17 of the guide bearing pressing mold 9 described in the above step (1) is set between the first upper mold 18 and the first lower mold 19, and there are also laminated trimming residual material holes on both sides of the cavity 17 20. The heating surface 21 is provided above the first upper mold 18 and below the first lower mold 19.

[0048] In the above step (2), when the thrust disc friction sheet forming mold 10 is used for direct pressing, the thrust disc friction sheet 3 is placed between the second upper mold 22 and the second lower mold 23 of the thrust disc friction sheet forming mold 10 , Both ends are closed by the middle mold 24, and the heating surface 21 is set above the second upper mold 22 and below the second lower mold 23.

Example Embodiment

[0049] Example 2

[0050] A polyester or aramid guide bearing and thrust plate friction sheet, characterized in that: a guide bearing 1 made of polyester or aramid and a thrust plate friction sheet 3 form a pair of friction pairs; the outside of the guide bearing 1 is a tube wall 15. A water flow groove 16 is also provided in the pipe wall 15; the thrust plate friction piece 3 and the cast iron base 4 constitute the thrust plate 2, and the thrust plate friction piece 3 is arranged on the cast iron base 4; the thickness of the guide bearing 1 The thickness of the friction piece 3 of the thrust plate is 0.8mm.

[0051] A manufacturing method of the above-mentioned polyester and aramid guide bearing and thrust plate friction sheet is characterized in that:

[0052] The method consists of the following steps:

[0053] (1) Manufacturing of guide bearing: impregnate polyester or aramid cloth with polyvinyl butyral modified phenolic resin for 5 hours, and dry it to obtain polyester or aramid resin cloth 5 for standby. The nylon resin cloth 5 is wound on the core mold 7, and after being squeezed tightly by three pressing rollers, the prefabricated tube 8 with the core mold 7 is removed and placed in the cavity 17 of the guide bearing pressing mold 9 at a temperature of 90℃ Here, a 50-ton hot press is used to press 5 tubes in parallel at a time, and the gauge pressure is 190kg/cm 2 , The temperature is 175℃, keep the pressure and temperature of the gauge for 30 minutes, demold, take out the polyester or aramid bearing tube, and make it into a polyester or aramid guide bearing 1 after machining;

[0054] (2) Manufacture of the thrust plate friction sheet: the prepared polyester or aramid resin cloth 5 after air-drying in step (1) is directly pressed with the thrust plate friction sheet forming mold 10, using a 50-ton hot press with gauge pressure 90kg/cm 2 , The temperature is 165 ℃, keep the pressure and temperature of the gauge for 30 minutes, demold, after the mold is machined into the thrust plate friction piece 3, the thrust plate friction piece 3 is bonded to the cast iron base 4 to obtain polyester or Aramid thrust plate 2; thus completing the manufacture of polyester, aramid guide bearing and thrust plate friction sheet.

[0055] The polyester or aramid resin 5 cloth described in the above step (1) and step (2) contains 36% by weight of the polyvinyl butyral modified phenolic resin.

[0056] The tube winding machine 6 described in the above step (1) is composed of a heating container 11 and three pressure rollers arranged above it. Among the three pressure rollers, the upper part is the upper roller 12, the lower part is the front roller 13, and the rear part is For the rear roller 14.

[0057] The cavity 17 of the guide bearing pressing mold 9 described in the above step (1) is set between the first upper mold 18 and the first lower mold 19, and there are also laminated trimming residual material holes on both sides of the cavity 17 20. The heating surface 21 is provided above the first upper mold 18 and below the first lower mold 19.

[0058] In the above step (2), when the thrust disc friction sheet forming mold 10 is used for direct pressing, the thrust disc friction sheet 3 is placed between the second upper mold 22 and the second lower mold 23 of the thrust disc friction sheet forming mold 10 , Both ends are closed by the middle mold 24, and the heating surface 21 is set above the second upper mold 22 and below the second lower mold 23.

Example Embodiment

[0059] Example 3

[0060] A polyester or aramid guide bearing and thrust plate friction sheet, characterized in that: a guide bearing 1 made of polyester or aramid and a thrust plate friction sheet 3 form a pair of friction pairs; the outside of the guide bearing 1 is a tube wall 15. A water flow groove 16 is also provided in the pipe wall 15; the thrust plate friction piece 3 and the cast iron base 4 constitute the thrust plate 2, and the thrust plate friction piece 3 is arranged on the cast iron base 4; the thickness of the guide bearing 1 The thickness of the friction piece 3 of the thrust plate is 0.6mm.

[0061] A manufacturing method of the above-mentioned polyester and aramid guide bearing and thrust plate friction sheet is characterized in that:

[0062] The method consists of the following steps:

[0063] (1) Manufacturing of guide bearing: impregnate polyester or aramid cloth with polyvinyl butyral modified phenolic resin for 3 hours, and dry it to obtain polyester or aramid resin cloth 5 for standby. The nylon resin cloth 5 is wound on the core mold 7, after being squeezed and compacted by three pressing rollers, the prefabricated tube 8 with the core mold 7 is removed and placed in the cavity 17 of the guide bearing pressing mold 9 at a temperature of 80℃ Here, a 50-ton hot press is used to press 5 tubes in parallel at a time, and the gauge pressure is 180kg/cm 2 , The temperature is 170 ℃, keep the pressure and temperature of the gauge for 30 minutes, demold, take out the polyester or aramid bearing tube, and process it into a polyester or aramid guide bearing 1;

[0064] (2) Manufacture of the thrust plate friction sheet: the prepared polyester or aramid resin cloth 5 after air-drying in step (1) is directly pressed with the thrust plate friction sheet forming mold 10, using a 50-ton hot press with gauge pressure 80kg/cm 2 , The temperature is 170 ℃, keep the pressure and temperature of the gauge for 30 minutes, demold, after the mold is machined into the thrust plate friction piece 3, the thrust plate friction piece 3 is bonded to the cast iron base 4 to obtain polyester or Aramid thrust plate 2; thus completing the manufacture of polyester, aramid guide bearing and thrust plate friction sheet.

[0065] The polyester or aramid resin 5 cloth described in the above step (1) and step (2) contains 33% by weight of the polyvinyl butyral modified phenolic resin.

[0066] The tube winding machine 6 described in the above step (1) is composed of a heating container 11 and three pressure rollers arranged above it. Among the three pressure rollers, the upper part is the upper roller 12, the lower part is the front roller 13, and the rear part is For the rear roller 14.

[0067] The cavity 17 of the guide bearing pressing mold 9 described in the above step (1) is set between the first upper mold 18 and the first lower mold 19, and there are also laminated trimming residual material holes on both sides of the cavity 17 20. The heating surface 21 is provided above the first upper mold 18 and below the first lower mold 19.

[0068] In the above step (2), when the thrust disc friction sheet forming mold 10 is used for direct pressing, the thrust disc friction sheet 3 is placed between the second upper mold 22 and the second lower mold 23 of the thrust disc friction sheet forming mold 10 , Both ends are closed by the middle mold 24, and the heating surface 21 is set above the second upper mold 22 and below the second lower mold 23.

PUM

Property	Measurement	Unit
Thickness	0.5 ~ 0.8	mm
Thickness	0.5	mm
Thickness	0.8	mm

Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Good acid and alkali resistance

Polyester-aramid guide bearing, thrust disc friction plate and manufacturing method thereof

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

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Example Embodiment

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Example Embodiment

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Description & Claims & Application Information

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