Preparation method of non-gel ultra-thin stainless steel composite tube

Abstract

The invention discloses a preparation method of a non-gel ultra-thin stainless steel composite tube. The method comprises the following steps: firstly, processing a carbon steel belt, checking the size of the carbon steel belt, then, trimming and sizing the checked carbon steel belt to form a tube shape by the extrusion of an upper die and a lower die, welding into a carbon-steel tube, and grinding, trimming, sizing and straightening the surface of the carbon-steel tube; secondly, automatically checking the size of a stainless steel belt and trimming; thirdly, and enabling the carbon-steel tube to enter a guide film of a stainless steel cladding unit for guiding while enabling the trimmed stainless steel belt to enter the guide film so that a carbon-steel welding unit and the stainless steel cladding unit synchronously convey to adjust the guide film and trim the dies; afterwards, guiding while cladding the stainless steel belt on the carbon-steel tube to realize non-gel tight cladding; finally, sizing, calibrating, butt welding and grinding the clad stainless steel belt, and then, carrying out secondarily sizing, rounding, straightening, fixed length flying saw, surface polishing, detecting, packaging and storing.

Description

technical field [0001] The invention relates to a method for preparing an adhesive-free ultra-thin stainless steel composite pipe. Background technique [0002] The current preparation methods of SCP stainless steel composite pipe include cold drawing method, static pressure extrusion method and same seam rolling welding method. Due to the limitation of production process and equipment, the cold drawing method has poor product performance and cannot solve the problem of bimetallic difference. The problem of extension is that the deep processability of the product is very poor; the equipment used in the production of static pressure extrusion method is expensive, the process is complicated, and continuous production cannot be carried out; Products that require decorative appearance cannot be used, and the appearance is easy to crack. Contents of the invention [0003] The invention provides a method for preparing a non-adhesive ultra-thin stainless steel composite pipe. Th...

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Problems solved by technology

[0002] The current preparation methods of SCP stainless steel composite pipe include cold drawing method, static pressure extrusion method and same seam rolling welding method. Due to the limitation of production process and equipment, the cold drawing method has poor product performance and cannot solve the problem of bimetallic difference. The problem of extension is that the deep processability of the product is very poor; the equipment used in the production of static pressure extrusion method is expensive, the process is complicated, and continuous production cannot be carried out; Products that require decorative appearance cannot be used, and the appearance is easy to crack