JPS6359422A - Metallic wire for spinning machine - Google Patents

Abstract

PURPOSE:To obtain the titled wire consisting of an alloy wherein a carbide is dispersed in a martensite base, having high wear resistance, by molding alloy steel wire containing specific amounts of C, Cr and V, respectively, into a desired shape and heat-treating the wire. CONSTITUTION:Alloy containing 0.4-0.7% C, 0.5-1.5% Cr and 0.05-0.5% V as a material is molded into a desired shape of metallic wire and heat-treated. Consequently, metallic wire wherein a carbide is dispersed in a martensite base, having improved wear resistance, can be produced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to improvements in metallic wire for spinning machines, which are mainly used in carding machines in the spinning process.

Conventional Technology and Problems Conventionally, carding machines have been used to spin cotton at a production rate of about 80 pieces per hour.

However, under the severe spinning conditions of recent high-speed, high-production areas, it is required to improve the quality of the spun sliver, extend the polishing cycle, and save labor. The sliver is required to have a long life and a low amount of neps in the sliver. Therefore, in order to improve wear resistance and extend the polishing cycle, carbon steel materials with α8% to L1% hardened have been used, but the wear resistance is insufficient and the service life is shortened. There was a problem in that it was not possible to obtain a product that met the above requirements.

Rounding Means to Solve the Problems The present invention solves the above problems, and 's O
The present invention provides a highly wear-resistant metallic wire made of an alloy steel wire containing r%V element and having carbide dispersed in a simultine site base through heat treatment.

One embodiment of the present invention will be described below.

An alloy steel containing Example 0 at α5%, Or at LO%, and V at 0.2% is spheroidized and annealed, formed into the shape of a predetermined metallic wire, for example, a Tekine wire, and heated under conditions of 850 to 950°C. A metallic wire with excellent wear resistance was obtained by quenching at a temperature of 180 to 280°C.

The Oi contained in the alloy steel wire used as the material for forming the metallic wire is 0.4 to 0.7%, and the Oi amount is 0.5 to L.
IS%, Viuo, 05-G, preferably within the range of 5%; if it is less, there will be less carbide, which is effective in improving wear resistance, and if it is more than that, workability will be poor.

Function The results of high-speed, high-productivity spinning using the metallic wire for a spinning machine of the present invention under the following conditions will be described.

Cylinder rotation speed 450 rpm Dotufa rotation speed 86 rpm Fat extraction gelen 500 gr/6YD production
mso Kg/hr Yarn Count Cotton 10-g O'8 To provide a detailed explanation of the present invention, the drawings show the relationship between the production volume of the carding machine and the number of nep in the sliver. A shows a metallic wire for a spinning machine according to the present invention, and B shows a conventional metallic wire.

When the number of nep in the sliver reaches the control limit, the tooth tip of the metallic wire is polished with one grindstone, but when the metallic wire for spinning machines of the present invention is used, the polishing cycle is more than twice F compared to the conventional one. I understand.

Furthermore, the number of neps in conventional metallic wires for spinning machines increases rapidly, and even if the tips of the teeth are polished, the number of neps does not become as low as in the initial stage of use due to abrasion of the working area lines, but the metallic wire for spinning machines of the present invention By polishing the tooth tips, the number of neps can be significantly reduced.

Effects of the Invention Since the metallic wire for a spinning machine of the present invention has the above-described structure, the wear resistance is significantly improved and the quality of the sliver can be maintained for a long time.

Furthermore, since the polishing cycle of the tooth tips of the metallic wire is more than twice that of the conventional method, this invention has excellent effects such as facilitating the maintenance of the carding machine.

[Brief explanation of the drawing]

The drawing is a curve diagram showing the relationship between the production volume of the carding machine and the number of neps.

Claims (1)

[Claims] C content 0.4-0.7%, Cr content 0.5-1.5
%, V content of 0.05 to 0.5% is formed into a predetermined metallic wire shape, and carbide is dispersed in the martensite base of the metallic wire by heat treatment. Metallic wire for spinning machines.