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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 to the calendering process, the workpiece forms a large metal internal stress, and when the stress is released in high temperature carburizing, the corresponding geometric deformation occurs, so only the roundness of the steel ring of Φ40 ~ Φ50 mm Allowable tolerance up to 0.2 ~ 0.25 mm

Method used

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  • Method for fabricating flange ring

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Embodiment 1

[0011] The present invention is carried out according to the processing method of decreasing tolerance, that is, as the processing steps move backward, the cumulative tolerance gradually becomes smaller until the final process eliminates the cumulative tolerance (reduces to the limit). Such as figure 1 As shown, taking the processing of PG-1 type 4251 steel ring as an example, the present invention includes the following operations (steps): 1. adopting a seamless steel pipe made of rolling bearing steel to make a blank, and this blank manufacturing method is a prior art. ② Turning, using CNC lathes to ensure the processing accuracy requirements of the next process, rough turning first, and then fine turning. ③ Heat treatment is carried out according to the conventional heat treatment method of rolling bearing steel, that is, heat treatment is carried out by spheroidizing annealing, quenching and low temperature tempering. It is a non-carburizing heat treatment, that is, the s...

Embodiment 2

[0013] The present invention is carried out according to the processing method of decreasing tolerance, that is, as the processing steps move backward, the cumulative tolerance gradually becomes smaller until the final process eliminates the cumulative tolerance (reduces to the limit). The present invention includes the following procedures (steps): ①Using a sintered powder metallurgy compact (that is, a sintered product that can be obtained by initial pressing). ② turning, with the operation in embodiment 1 ②. ③ It is heat treated according to the conventional heat treatment method of powder metallurgy, that is, it is heat treated by surface quenching. 4. Grinding and forming, eliminating (extinguishing) the accumulative tolerances of the previous processes, the same as 4. the process in Example 1. ⑤ The finished product is obtained after surface treatment. Surface treatment: Polishing, mechanical polishing or electropolishing can be used, selected according to conditions, ...

Embodiment 3

[0015] The present invention is carried out according to the processing method of decreasing tolerance, that is, as the processing steps move backward, the cumulative (product) tolerance gradually becomes smaller until the final process eliminates the cumulative tolerance (reduces to the limit). The present invention comprises the following operations (steps): 1. The seamless steel pipe made of alloy steel is used to make the blank, 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 Steel (such as low-alloy cutting steel, high-speed steel, die steel) or special performance steel (such as wear-resistant steel, heat-resistant steel, stainless steel) seamless steel pipe. ② turning, with the operation in embodiment 1 ②. ③ Perform conventional heat treatment according to the selected material (that is, perform conventional heat treatment to improve its surfa...

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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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