Band-shaped lubricating material for dry wiredrawing and process for producing same

Abstract

Provided is an innovative belt-shaped lubricating material for dry wiredrawing which not only can be used under severe wiredrawing processing conditions such as those of high temperature/high pressure/high speed as well as conventional powdered or granular lubricants for dry wiredrawing but also can cope with diameter reduction to a wide range of wire diameters ranging from a small diameter to a large diameter and a wide range of linear speeds ranging from a low speed to a high speed, has excellent functionalities such as lubricity, followability, spreadability, adhesiveness, heat resistance, processability, workability, safety, durability and productivity irrespective of a processed shape, is effective in improving work environments and is friendly to the global environment.

The belt-shaped lubricating material for dry wiredrawing includes a film containing 10 to 90% by weight of a metal salt of a saturated fatty acid and 10 to 90% by weight of a thermoplastic resin.

Description

TECHNICAL FIELD [0001]The present inventions relates to a belt-shaped lubricating material for dry wiredrawing, which is used for maintaining a stable processing state by preventing seizure due to direct contact between a base material such as a wire material or a rod and a die when the base material is pulled out and reduced in diameter to perform wiredrawing.BACKGROUND ART[0002]Powdered or granular lubricants for dry wiredrawing are commonly used for wiredrawing processing in which a base material such as a large-diameter wire material or rod made of a metal such as iron and steel or a nonferrous metal is pulled out from a hole of a mold steel such as a die, reduced in diameter into a small-diameter wire material or rod, and plastically deformed. Such a lubricant for dry wiredrawing is used in order to prevent a base material and a die from seizing by coming into direct contact with each other, so that sliding is facilitated to maintain a stable processing state.[0003]For example,...

AI Technical Summary

Benefits of technology

[0018]A belt-shaped lubricating material for dry wiredrawing according to the present invention is drawn into a die together with a base material to be subjected to processing such as wiredrawing processing irrespective of a processed shape, and forms a lubricating film on the base material to prevent seizure due to direct contact between the base material and the die, so that a stable processing state can be maintained. For wiredrawing processing conditions, the belt-shaped lubricating material for dry wiredrawing can be used under severe conditions such as those of high temperature / high pressure / high speed, and can cope with diameter reduction to a wide range of wire diameters ranging from a small diameter to a large diameter and a wide range of linear speeds ranging from a low speed to a high speed.

[0019]When conventional powdered or granular lubricants for dry wiredrawing is used, one-time use amount thereof is large and they generate wastes in an amount as large as 80 percent without being completely consumed. Whence, the conventional powdered or granular lubricants are unproductive. Unlike conventional powdered or granular lubricants for dry wiredrawing, the present belt-shaped lubricating material for dry wiredrawing, owing to the belt shape, can be completely consumed, while the one-time use amount is kept low without causing mass consumption / mass disposal. And the present belt-shaped lubricating material for dry wiredrawing coinstantaneously exhibit excellent functional effects such as those of lubricity, followability, spreadability, adhesiveness, heat resistance, processability and durability. When several stages of reduction of the wire diameter in a wire material as a base material are required, usually a lubricant for dry wiredrawing is needed for each stage. However the present belt-shaped lubricating material for dry wiredrawing can be used only at the initial time or interruptedly to form an adequate lubricating film on the surface of the wire material and to maintain the effect thereof, so that production efficiency and cost effectiveness can be improved.

[0020]The belt-shaped lubricating material for dry wiredrawing of the present invention can be safely used without causing deterioration of work environments, health hazards to operators and environmental pollution which result from dust generated in association with the powdered or granular shape, and is friendly to the global environment.

[0021]According to a method for production of a belt-shaped lubricating material for dry wiredrawing in the present invention, a belt-shaped lubricating material for dry wiredrawing which is formed into film-shape and is capable of exhibiting excellent effects such as those of lubricity, followability, spreadability, adhesiveness, heat resistance, processability and durability can be conveniently and efficiently produced.

[0022]According to a wiredrawing method of the present invention, a processed base material to be reduced in diameter to perform wiredrawing can be reliably plastically deformed using a belt-shaped lubricating material for dry wiredrawing, and can be reduced in diameter repeatedly without necessity to wind the belt-shaped lubricating material for dry wiredrawing again, thus being efficiency.

Problems solved by technology

Therefore, the total amount of the remainder is unwillingly discarded.

Since the recent social situation has been shifting to a society taking care of the global environment through reuse of resources, etc., the above-mentioned mass consumption / mass disposal is becoming a problem.

Since the above-mentioned lubricant is powdered or granular, there is the problem of causing deterioration of work environments, health hazards to operators and environmental pollution which result from dust and the like at the time of use.

Further, it is necessary to use properly or adjust the particle shape of the lubricant for dry wiredrawing according to a processed shape, leading to poor efficiency on the operator side and the producer side.

Images