Card-clothing wire

Details Card-clothing wire Card-clothing wire

1978-09-20

1980-07-08

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 315, 427249, 427252, 19144, D01G 1584

Patent

active

042115833

ABSTRACT:
Card-clothing wire is manufactured for use on rollers in textile fibre processing machines. The wire is formed into a helical coil, with the teeth projecting radially from the rib of the wire, in the same manner as in the condition of use on the roller, and while in this helical coiled formation is subjected to a high temperature chromium diffusion process to produce a surface layer enriched with chromium, producing a surface hardness in excess of 1500 HV as measured on the Vickers hardness scale. Although the surface is well able to withstand the abrasive action of the fibres in use, it is not subjected to cracking, because of the precoiling of the wire before it is subjected to the diffusion process.

REFERENCES:
patent: 2816048 (1957-12-01), Galmiche
patent: 3066044 (1962-11-01), Samuel
patent: 3387338 (1968-06-01), Kanai et al.
patent: 3833968 (1974-09-01), Arai et al.

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