Stroke processing method of ultrathin cylinder stainless steel tube film for printer and duplicator

Abstract

The invention discloses a stroke processing method of an ultrathin cylinder stainless steel tube film for a printer and a duplicator, comprising the following steps of: a. preparing a mould with continuous multistage stroke processing; b. primarily stretching a plate to prepare a cylinder with marginal ridge; c. coating lubricating agents on the inner wall and the outer wall of the cylinder, mounting the cylinder on a punching head of the mould, driving the punching head to press into the mould once, simultaneously cooling the punching head and heating a punching die of each stage through stroke processing; and d. drawing out the punching head for demoulding, cutting off two ends of a pipe fitting subjected to the differential temperature stroke processing and reserving the pipe body at the middle to obtain the required ultrathin cylinder stainless steel tube film. With the technical scheme, by cooling the punching head, heating the punching die of each stage through stroke processing and carrying out multistage stroke processing by one-time differential temperature, the invention avoids the martensite phase transformation and improves the plasticity of stainless steel materials. In addition, by using the process method, the production can be finished by only three working procedures of primary stretching, annealing and multistage stroke processing and re-stretching, so that the production efficiency is improved.

Description

Technical field: [0001] The invention relates to a processing method for ultra-thin cylindrical stainless steel tube film used in printers and copiers. Background technique: [0002] At present, the ultra-thin cylindrical stainless steel tube film for printers and copiers is processed by deep drawing of thin plate materials, and its thickness is required to be less than 0.1mm, so as to meet its high thermal efficiency and stability requirements. [0003] There are two traditional processing methods, one is: first, the cup-shaped material is formed by primary stretching, and then annealed, and then the thin cylindrical tubular film can be gradually produced through multiple strokes. Only a thin cylindrical tubular film with a minimum thickness of about 0.1 mm can be produced. If this processing method is used to process a thin cylindrical tubular film with a thickness of less than 0.1 mm, the cylindrical tubular film will have a diameter deviation of 20 μm Right and left, re...

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Problems solved by technology

[0004] The second is: Compared with the above method, multi-stage processing is used for forming. However, because this method is carried out at room temperature, the austenitic stainless steel plate is produced after primary stretching and multi-stage processing. For the required formed products, this process will produce relatively serious martensitic transformation (that is, work hardening), and martensite has the characteristics of high hardness and poor plasticity, which leads to a great reduction in the processing rate of stainless steel, and the processing process is also easy to cause tension. crack

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