Method for fabricating flange ring

A processing method and steel ring technology, applied in the direction of textiles and papermaking, etc., to achieve the effects of prolonging service life, improving output and quality, improving processing accuracy and surface finish

Inactive Publication Date: 2005-01-12
SHANYUAN PASHMINA GARMENT SHIJIAZHUANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this processing method is that the above-mentioned A3 steel plate itself forms a strip-shaped metallographic structure during the rolling process-it is not suitable for this round workpiece (steel ring), so the "congenital deficiency" is left on the material. "; and due t

Method used

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  • Method for fabricating flange ring

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Example Embodiment

[0010] Example 1:

[0011] The present invention is carried out according to the processing method of decreasing tolerance, that is, as the processing procedure moves backward, the cumulative tolerance gradually becomes smaller, until the final procedure eliminates the cumulative tolerance (reduced to the limit). Such as figure 1 As shown, taking the processing of the PG-1 type 4251 ring as an example, the present invention includes the following processes (steps): ① A seamless steel pipe made of rolling bearing steel is used to make a blank, and the blank manufacturing method is an existing technology. ② Turning, using a CNC lathe to ensure the machining accuracy requirements of the next process, rough turning first, and then fine turning. ③The rolling bearing steel is heat treated according to the conventional heat treatment method, that is, it is heat treated by spheroidizing annealing, quenching and low temperature tempering. It is a non-carburizing heat treatment, that is, th...

Example Embodiment

[0012] Example 2:

[0013] The present invention is carried out according to the processing method of decreasing tolerance, that is, as the processing procedure moves backward, the cumulative tolerance gradually becomes smaller, until the final procedure eliminates the cumulative tolerance (reduced to the limit). The present invention includes the following procedures (steps): ① Adopt sintered powder metallurgy compacts (that is, sintered products that can be obtained by initial pressing). ②Turning, same as the procedure ② in Example 1. ③It is heat treated according to the conventional heat treatment method of powder metallurgy, that is, it is heat treated by the method of surface quenching. ④Grinding and forming, eliminating (extinguishing) the accumulated tolerances of the first few processes, same as the process ④ in Example 1. ⑤The finished product is obtained after surface treatment. Surface treatment: polishing, mechanical polishing or electro-polishing can be used, accordin...

Example Embodiment

[0014] Example 3:

[0015] The present invention is carried out according to the processing method of decreasing tolerance, that is, as the processing process moves backward, the cumulative (product) tolerance gradually becomes smaller, until the final process eliminates the cumulative tolerance (reduced to the limit). The present invention includes the following procedures (steps): ① The blank is made of seamless steel pipe made of alloy steel, and the material can be made of alloy structural steel (such as ordinary low alloy steel, free-cutting steel, quenched and tempered steel, rolling bearing steel) or alloy tools Seamless steel pipes made of steel (such as low-alloy cutting tool steel, high-speed steel, die steel) or special performance steel (such as wear-resistant steel, heat-resistant steel, stainless steel). ②Turning, same as the procedure ② in Example 1. ③It is subjected to conventional heat treatment according to the selected material (that is, it is subjected to conve...

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PUM

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Abstract

A processing method for a plane steel collar is carried out according to a tolerance decrement method including the following steps : applying seamless steel tube made of alloy steel to process blanks or applying powder smelt to press blanks, turning : processing in conventional hot process to the selected materials, no carbon penetration heat treatment formed by grinding eliminating the front several procedure accumulation tolerance to get the product after surface process which eliminates the accumulation tolerances of the last several procedures since applying formation procedure by grinding, the smoothness is not greater than 0.01mm roundness is less than 5 mum.

Description

technical field [0001] The invention relates to a method for processing a steel ring of a ring spinning frame. Background technique [0002] Since the birth of the ring spinning frame, the ring and traveler have always restricted the output and quality of the ring spinning frame. Despite years of improvement by technicians, the spindle speed is still limited to 17,000 to 18,000 rpm. (very few reach 22,000 to 25,000 rpm), when the spindle speed is 17,000 rpm and the ring diameter is 42 mm, the linear speed of the traveler on the ring is 40 m / s, such a high Speed ​​Without a high-precision ring as the basis for operation, it is impossible to increase its speed. At present, the common method of manufacturing steel rings in my country is to use A3 steel plate as the material, and its processing method includes the following processes: ① Stamping blank, ② Rough turning, ③ Finish turning, ④ Calendering, ⑤ Carburizing, ⑥ Quenching, ⑦ Surface treatment. The...

Claims

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Application Information

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IPC IPC(8): D01H7/60
Inventor 刘纪善刘顺玲
Owner SHANYUAN PASHMINA GARMENT SHIJIAZHUANG
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