Self-lubricating wear-resisting agglomerate moulding material

A mass molding compound and self-lubricating technology, applied in the field of self-lubricating and wear-resistant mass molding compound, can solve the problems of no friction parts and poor wear resistance, and achieve the effect of reducing friction, good wear resistance and accurate product size

Active Publication Date: 2008-09-17
NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, most of the BMCs currently on the market are used for the manufacture of light and small structural parts, and ha

Method used

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  • Self-lubricating wear-resisting agglomerate moulding material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Example 1: Self-lubricating wear-resistant bulk molding compound (CBMC) with different colloidal graphite powder content

[0044] Graphite content is the most important factor that determines the self-lubrication of the product. Depending on the application to different mechanical sliding or friction parts, the required self-lubrication is different. The selection of different graphite content will have different effects on the self-lubricating wear-resistant bulk molding compound (CBMC).

[0045] The first step: Weigh according to the formula components, the following are the mass parts:

[0046] 70 parts of unsaturated polyester resin

[0047] Polystyrene 30 parts

[0048] 4 parts zinc stearate

[0049] 70 parts of aluminum hydroxide

[0050] 90 servings of calcium carbonate

[0051] 1 part of tert-butyl peroxybenzoate TBPB

[0052] Calcium hydroxide 0.8 parts

[0053] 10 parts of 38μm colloidal graphite powder

[0054] BYK~330 1 copy

[0055] 6mm glass fiber 55 servings

...

Example Embodiment

[0068] Example 2: Self-lubricating wear-resistant bulk molding compound (CBMC) with different graphite particle diameters

[0069] Weigh according to the formula components:

[0070] Unsaturated polyester resin 60 parts

[0071] Polystyrene 40 parts

[0072] 4 parts zinc stearate

[0073] 80 parts of aluminum hydroxide

[0074] 80 servings of calcium carbonate

[0075] 1 part of tert-butyl peroxybenzoate TBPB

[0076] Calcium hydroxide 0.8 parts

[0077] 20μm colloidal graphite powder 30 parts

[0078] BYK~330 1 copy

[0079] 6mm glass fiber 55 servings

[0080] 12mm glass fiber 45 parts

[0081] The production process is the same as in Example 1. Because the lubricating performance of graphite depends on the size of the graphite flakes, the larger the flakes, the smaller the friction coefficient and the better the lubricating performance. Table 2 shows the different effects of choosing different graphite particle sizes on the self-lubricating wear-resistant bulk molding compound ...

Example Embodiment

[0085] Example 3: Self-lubricating wear-resistant bulk molding compound (CBMC) with different glass fiber content

[0086] Weigh according to the above preferred formula components:

[0087] 70 parts of unsaturated polyester resin

[0088] Polystyrene 30 parts

[0089] 4 parts zinc stearate

[0090] 90 parts of aluminum hydroxide

[0091] 70 servings of calcium carbonate

[0092] 1 part of tert-butyl peroxybenzoate TBPB

[0093] Calcium hydroxide 0.8 parts

[0094] 20μm colloidal graphite powder 30 parts

[0095] BYK~330 1 copy

[0096] 6mm glass fiber 35 parts

[0097] 12mm glass fiber 75 parts

[0098] The production process is the same as in Example 1. As a reinforcing material, glass fiber has a greater impact on the mechanical properties of the material, and has no major effect on the friction and wear properties, but it also has a certain impact. This is mainly related to the nature of the glass fiber itself and the interface between the glass fiber and the matrix. The visco...

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Abstract

The invention relates to a self-lubricated abrasion-proof lumpy molding compound. The premix of the molding compound contains an unsaturated polyester resin in an amount of 60 to 80 parts by mass; a low shrink additive in an amount of 20 to 40 parts by mass; an internal molding lubricant in an amount of 3 to 5 parts by mass; an inorganic filler in an amount of 140 parts to 170 parts by mass; an initiator in an amount of 0.5 to 2 parts by mass; a thickening agent in an amount of 0.5 to 1.5 parts by mass; a lubricant in an amount of 10 to 40 parts by mass; a reinforcing material in an amount of 83.5 to 188 parts by mass. The total number of the parts of the unsaturated polyester resin and the low shrink additive is 100. The self-lubricated abrasion-proof lumpy molding compound has excellent mechanical property and acid and alkali corrosion resistance, and is light in weight so as to save fuel and discharge little pollution. The invention is designed freely; the components are integral; the dimensional stability is excellent; the surface is smooth; the components can be self-lubricated without needing other lubricants for reducing friction; the molding compound can be used for molding once; and molded products have accurate sizes and good surfaces, thus avoiding machining, heat treatment and surface modification of metal abraded parts; in addition, the production cycle is short.

Description

Technical field [0001] The invention relates to a self-lubricating wear-resistant bulk molding compound (Carbonaceous Bulk Molding Compound, referred to as CBMC). Background technique [0002] The friction parts on the market, such as automobile shift sliders, generally use metal parts. The traditional metal friction parts have been processed by machining, heat treatment and surface modification. It does have various physical, chemical and mechanical advantages, but one or several treatments The process can only make it have one or several physical and chemical mechanical properties. For example, shot peening can only improve the surface hardness, but can not make it have the advantages of corrosion resistance, and the processing cost increases with the increase of processing steps. . Moreover, almost all metal friction parts need to be regularly added with lubricants, which is cumbersome to operate and increases costs. [0003] Bulk Molding Compound (BMC) is a kind of premix tha...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L25/06C08K7/14C08J5/04C08K3/00C08K5/10
Inventor 张文武
Owner NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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