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Failure analysis of the bearing outer lane of cold and hot working

30th September 2010 Bearing Technology 0 Comments

the quality place of textile machinery factory of Xianyang

Summary: Utilize detection means such as metallography, hardness, chemical analysis, present the full of cracks characteristic to analyze the metallography about the surface in the heat treatment and after rubing and sharpening processing of machine component of textile. Find out question, and put forward the suggestion.

Keyword: Bearing steel; Quench; Crackle; Metallography analysis

The fabrics machine of China began to be had the shuttleless loom loom to turn to shuttleless loom field in middle period of the eighties. While absorbing the advanced technology of developed country, from introducing the parts, assemble by oneself, study and control oneself progressively, improve China and produce and melt the rate of the part gradually. Develop into today, has already developed diversified forms of shuttleless looms such as spraying water, jet-propelled, sword pole on the Chinese market. The shuttleless loom not only weaves the speed fast, but also embody in its button width fabric is a face width in its advanced intensity ,Furnished with many arm structure, has created the condition for the diversified forms of brocade on the fabric. At present, some part quality restricts the quality of the loom products. What this text involves is when the sword pole loom part is assembled as the platform after processing and finishing, find a kind of bearing outer lane part among them goes wrong group by group, thus adopt the physical and chemical means to pay and scrap the failure analysis of the part.

1 is given to the invalid part tested

The invalid part appearance is shown as in Fig. 1, it is the clutch bearing outer lane in the sword pole loom, its intensity, toughness, precision are expected relatively much.

Part manufacture raw materials: GCr15 bearing stencil plate.

Material treatment state: Ball annealed state.

The production procedure group by group of the part: Unloading

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