Water labricating metal plastic bush and producing method

A metal plastic and production method technology, applied in the directions of hydropower, bearing components, shafts and bearings, etc., can solve the problems of short service life, difficult installation and debugging, large running swing of the unit, etc., to improve the running accuracy and wear resistance. Strong and anti-friction effect

Active Publication Date: 2007-10-24
DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of the existing technology, such as the difficulty in overall installation and debugging, the large operating swing of the unit

Method used

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  • Water labricating metal plastic bush and producing method
  • Water labricating metal plastic bush and producing method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Embodiment 1 As shown in FIG. 1 , it is a cross-sectional view of a cylindrical bearing.

[0024] A. make tin bronze wire hole pad 2 according to prior art method;

[0025] b. Mix aramid fibers or carbon fibers with a weight percentage of 2 to 8, polyphenylene resin or polyimide with a weight percentage of 5 to 30, lead powder with a weight percentage of 5 to 25, and the remainder of polytetrafluoroethylene Evenly spread on the metal wire hole pad 2, molded and compounded into a blank according to the prior art method;

[0026] c. Sinter the blank to make a tile surface with a composite modified polytetrafluoroethylene plastic layer 3 embedded on the wire hole pad 2;

[0027] d. The tile surface is brazed on the steel tile base 1, and after mechanical finishing, the steel tile base 1 is firmly combined with the metal wire hole pad 2, and the metal wire hole pad 2 is embedded with composite modified PTFE Cartridge bearings with vinyl layer 3.

Example Embodiment

[0028] Embodiment 2 is shown in Figure 2, which is a cross-sectional view of a segmented bearing bush.

[0029] a. According to the method in the prior art, the tin bronze wire with a diameter of 0.2-0.8 mm is wound into a helical shape and cut into wire segments of 15-65 mm, and then molded to form the wire hole pad 2 .

[0030] b. Mix aramid fibers or carbon fibers with a weight percentage of 2 to 8, polyphenylene resin or polyimide with a weight percentage of 5 to 30, lead powder with a weight percentage of 5 to 25, and the remainder of polytetrafluoroethylene Evenly spread on the metal wire hole pad 2, molded and compounded into a blank according to the prior art method;

[0031] c. Sinter the blank to make a tile surface with a composite modified polytetrafluoroethylene plastic layer 3 embedded on the wire hole pad 2;

[0032] d. The tile surface is brazed on the sub-block steel tile base 1, and it is made by mechanical finishing. The steel tile base 1 is firmly combined...

Example Embodiment

[0033] Example 3:

[0034] a. According to the prior art method, steel wire and tin bronze wire with a diameter of 0.2 to 0.8 mm are respectively wound into a spiral shape and cut into a wire section of 15 to 65 mm; first the steel wire section is laid in the mold, and then Lay tin bronze wire section on it, the thickness ratio of steel wire section and tin bronze wire section is 1:1, makes metal wire hole pad 2.

[0035] b. Mix aramid fibers or carbon fibers with a weight percentage of 2 to 8, polyphenylene resin or polyimide with a weight percentage of 5 to 30, lead powder with a weight percentage of 5 to 25, and the remainder of polytetrafluoroethylene Evenly spread on the metal wire hole pad 2, molded and compounded into a blank according to the prior art method;

[0036] c. Sinter the blank to make a tile surface with a composite modified polytetrafluoroethylene plastic layer 3 embedded on the wire hole pad 2;

[0037] d. The tile surface is brazed on the steel tile bas...

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Abstract

The water lubricating metal plastic bush include steel bush base, metal wire cushion adhered firmly onto the base, and composite modified PTFE plastic layer embedded onto the metal wire cushion. The composite modified PTFE plastic layer is produced with aramid fiber or carbon fiber 2-8 wt%, POB or polyimide 5-30 wt% and lead powder 5-25 wt%, except PTFE. The production process includes making metal wire cushion; spreading the material for the modified PTFE plastic layer onto the metal wire cushion; molding; sintering to form the bush surface comprising making metal wire cushion and modified PTFE plastic layer; and welding the bush surface onto the steel bush base.

Description

Technical field: [0001] The invention relates to a water-lubricated guide bearing bush, a water-pump bearing bush and a production method thereof for a water turbine generator set, in particular to a water-lubricated metal-plastic bearing bush and a production method thereof. Background technique: [0002] At present, the water-lubricated guide bearing bushes and water pump bearing bushes of hydro-generator sets all use rubber bearing bushes, mainly because they have good water-lubricating properties. However, due to the low modulus and soft material of the rubber bearing pad, it is difficult to install and debug the product as a whole, and the unit has a large operating swing and a short service life. Although there are various improvements to the bearing pad before this patent application, there is no bearing pad that is wear-resistant, has strong rigidity and has good water lubricating performance so far. The closest existing technology to this patent application technol...

Claims

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Application Information

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IPC IPC(8): F16C33/20F03B11/06F04D29/04C08L27/18
CPCY02E10/226Y02E10/20Y02P70/50
Inventor 孙承玉聂中德刘长波
Owner DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV
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