Method for manufacturing wire of bearing steel

Abstract

A technology for producing steel wire for manufacturing the steel balls of bearing includes such techonlogical steps as hot rolling, spheriodizing, acid washing, phosphorizing, lubricating, drawing, annaling, acid washing, phosphorizing, lubricating and light drawing. Its advantages are high productivity, and high surface hardness of product.

Description

(1) Technical field [0001] The invention relates to a production method of steel wire. Specifically, it is a production method for steel wire used to make bearing steel balls. (2) Background technology [0002] At present, the production methods of steel wire used to make bearing steel balls mainly include hot rolling, spheroidizing, pickling, phosphating, lubrication, drawing, annealing and antirust treatment. Using the above production method, although bearing steel wire can be produced, due to the low hardness of the steel wire after annealing treatment, when the steel wire is punched into steel balls with a punch, the head of the steel wire is prone to bending and is difficult to insert into the steel ball mold. Therefore, the ball cannot be played at high speed, and the production efficiency is not high. In addition, because the bearing steel wire produced by the above method needs to be coated with anti-rust paint for anti-rust treatment before storage, the warehouse...

AI Technical Summary

Problems solved by technology

Using the above production method, although the bearing steel wire can be produced, because the hardness of the steel wire after annealing treatment is low, when the steel wire is punched into a steel ball with a punch, the head of the steel wire is prone to bending, and it is difficult to insert into the steel ball mold

Therefore, the ball cannot be played at high speed, and the production efficiency is not high

In addition, because the bearing steel wire produced by the above method needs to be coated with anti-rust paint for anti-rust treatment before being put into storage, it will pollute the warehouse and production site and cause environmental pollution.