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Method for producing stainless steel welded pipes with patterns

A production method and stainless steel technology, applied in decorative arts, embossed ornaments, etc., can solve the problems of low production efficiency, complicated production process, high production cost, and achieve the effect of reducing the rollable thickness

Inactive Publication Date: 2010-07-07
杨元恒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of the above method is complex and cumbersome, the production environment is relatively harsh, the production cost is high, and the production efficiency is low

Method used

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  • Method for producing stainless steel welded pipes with patterns
  • Method for producing stainless steel welded pipes with patterns
  • Method for producing stainless steel welded pipes with patterns

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] ginseng is figure 1 , figure 2 , image 3 As shown, a kind of production method step of stainless steel pattern welded pipe is like this:

[0026] (1) heating the stainless steel strip 3 with a rectangular intermediate frequency induction heating coil 2, the heating temperature is 1000-1200°C;

[0027] (2) The heated stainless steel strip 3 is continuously produced intermittently by a three-roll asynchronous hot-rolling mill 1, and the upper roll 1-3 of the three-roll asynchronous hot-rolling mill 1 is an active carving roll. The middle roll 1-5 is a passive smooth working roll, the lower roll 1-6 is an active smooth support roll, and the outer diameter ratio of the upper roll 1-3, middle roll 1-5, and lower roll 1-6 is 1:0.2- 0.4∶0.8-1, the speed ratio of upper roller 1-3 and lower roller 1-6 is 1∶0.9-0.6, the depth of engraving is 0.2-2.7mm, and the width left on both sides of the stainless steel belt 3 is 0.8-1.2mm the welding area;

[0028] (3) The rectangular...

Embodiment 2

[0034] see Figure 4 , Figure 5 As shown, this example is a stainless steel welded pipe with zigzag embossing on the inner surface 3-2, the cross section of the inner wall of the pipe is zigzag grooved 3-2-1, the outer diameter of the engraving roller 1-3 is φ170mm, and the middle roller 1-5 The outer diameter of the lower roller 1-6 is φ42mm, the outer diameter of the lower roller 1-6 is φ170mm, the width is 21.2mm, the thickness of the stainless steel belt 3 is 0.7mm, the depth of the groove 3-2-1 is 0.3mm, the distance between adjacent grooves is 0.36mm, and the tooth top is wide is 0.22mm, tooth bottom width is 0.268mm, tooth tip angle is 9°, the included angle between flute 3-2-1 and steel strip longitudinal angle is 25°, zigzag flute 3-2-1 is in addition to stainless steel welded pipe Outside the weld area, all are filled. Leave 1 mm on both sides of the weld without rolling, and the outer wall of the welded pipe is smooth. The speed ratio of upper and lower rolls 1-...

Embodiment 3

[0036] see Image 6 As shown, this example is a T-shaped embossed stainless steel welded pipe 3-3 on the outer surface, the surface of the welded pipe is covered with T-shaped embossed lines 3-3-1, and multiple rows of T-shaped embossed lines 3-3-1 are arranged one by one along one direction. The height of the outer embossment is 0.4mm, the thickness of the stainless steel strip is 0.8mm, the outer diameter of the upper roll 1-3 is φ170mm, the outer diameter of the middle roll 1-5 is φ34mm, the outer diameter of the lower roll 1-6 is φ152mm, both sides of the weld Leave 1.2mm unrolled on each edge, and roll T-shaped reliefs 3-3-1 on the rest. The inner wall of the welded pipe is smooth. The rotational speed ratio of upper roll 1-3 and lower roll 1-6 is 1: 0.8. Its groove rolling method is as described in Example 1.

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Abstract

The invention discloses a method for producing stainless steel welded pipes with patterns, which is characterized in that floral patterns with clear lines are rolled on the surfaces of the stainless steel welded pipes and the production efficiency is high. The method comprises the following steps: heating the stainless steel strips with intermediate frequency heating coils under the protection of mixed gases of hydrogen and nitrogen; carrying out continuous production and discontinuous engraving by a three-roller type asynchronous engraving hot mill; and cooling the stainless steel strips which exit from a rolling mill and have single surfaces engraved, rolling roughly molded horizontal roller sets into drums and welding the drums into circular pipes with a stainless steel pipe welder, wherein the horizontal rollers in the horizontal roller sets are made of MC nylons or rubber materials; an upper roller of the rolling mill is a drive engraving roller, a medium roller is a driven plain work roller and a lower roller is a drive plain backup roller; the engraving depth is 0.2-2.7mm; the external diameter ratio of the upper, medium and lower rollers is 1:0.2-0.4:0.8-1; and the speed ratio of the upper and lower rollers is 1:0.6-0.9.

Description

technical field [0001] The invention relates to the technical field of production of stainless steel welded pipes, in particular to a production method of stainless steel patterned welded pipes. technical background [0002] At present, the stainless steel patterned pipes sold on the market are printed on the outer surface of the welded stainless steel pipe by screen printing, after drying, immersed in a chemical corrosion solution, and through a chemical reaction, the surface metal part protected by the paint-free protective layer is corroded. Thereby forming various preset three-dimensional patterns on the surface of the stainless steel pipe. The corrosion depth is about 0.1-0.4mm. The production process of the above method is complex and cumbersome, the production environment is relatively harsh, the production cost is high, and the production efficiency is low. Contents of the invention [0003] The purpose of the present invention is to provide a production method o...

Claims

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Application Information

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IPC IPC(8): B21C37/08B44B5/00
Inventor 杨元恒
Owner 杨元恒
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