Method for manufacturing stainless steel tail gas pipe of car, and automatic cutter for cutting stainless steel pipe

A technology of automobile exhaust and manufacturing method, applied in the direction of engine components, mechanical equipment, etc., can solve the problems of uneven austenitization, low production efficiency, poor finish, etc., and achieve uniform austenitization, good cutting quality, and cutting high efficiency effect

Inactive Publication Date: 2004-08-11
锦州秀亭制管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing stainless steel automobile exhaust pipe is a stainless steel thin-walled pipe, which is cut by strip cutting, welded pipe, wall reduction and diameter reduction, coil pressure detection and cleaning, annealing, straightening and length cutting, straightening, process shrinking, Cutting to length, cleaning, drying, and finishing the finished product. The existing problems are inaccurate size, poor inner and outer surface brightness, uneven hardness, uneven austenitization and more burrs, serious open welding, and poor finish.
In addition, the stainless steel pipe cutting machine used when cutting to length is composed of a frame, a bottom plate arranged on the frame, a clamping body installed on the bottom plate, and an upper cover plate of the clamping body arranged above the clamping body. , the connecting rod connected with the upper cover plate of the

Method used

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  • Method for manufacturing stainless steel tail gas pipe of car, and automatic cutter for cutting stainless steel pipe
  • Method for manufacturing stainless steel tail gas pipe of car, and automatic cutter for cutting stainless steel pipe
  • Method for manufacturing stainless steel tail gas pipe of car, and automatic cutter for cutting stainless steel pipe

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Experimental program
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Embodiment 1

[0015] The manufacture method of this stainless steel automobile exhaust pipe is:

[0016] 1. Raw material inspection

[0017] Take the steel strip, check the chemical composition of the steel strip, the nominal size, the smooth surface with or without oil.

[0018] 2. Strip cutting

[0019] Lift the strip and clamp it on the chuck of the disc shearing machine, feed the strip into the cutting blade, gradually adjust the speed to medium speed for normal operation, and cut.

[0020] 3. Welded pipe

[0021] Put the strip on the uncoiler, scrub the surface of the material with vinyl chloride to make the surface of the material clean; press one end of the strip into the forming roller, so that the strip is uniformly formed into a circular blank tube in the forming roller, and the welding speed is 6m / min, current 75A or welding speed 10m / min, current 100A or welding speed 8m / min, current 85A;

[0022] 4. Reduce the wall and reduce the stretch

[0023] Use a forging machine to ...

Embodiment 2

[0044]As shown in the figure, the stainless steel pipe automatic cutting machine has a frame 1, a base plate 3 is installed on the frame 1, a clamping body 5 is installed on the base plate 3 through bolts 4, and a clamping body 5 is installed on the base plate 1 through bolts 10 There is a small bearing seat 27, a gland 12 is installed at the end of the small bearing seat 27, a radial ball bearing 11 is housed in the small bearing seat 27, a pressure plate main shaft 33 is housed in the radial ball bearing 11, and a pressure plate main shaft 33 is connected with Press plate 30, said press plate 30 corresponds to the position of clamping body 5, a press plate lifting cylinder 2 is arranged on the position below the end of corresponding pressing plate 30 on the frame 1, and the cylinder rod 29 of said pressing plate lifting cylinder 2 is connected with pressing plate 30 On the frame 1, located at the side of the clamping body 5, an intermediate bearing seat 25 is provided through...

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PUM

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Abstract

A technology for manufacturing the stainless steel pipe used as the tail gas pipe of car includes examining raw material, shearing, welding to become pipe, drawing, pressure test, washing, annealing, straightening, sizing, cutting off, straightening, reducing diameter, sizing, cutting off, washing and refining. Its automatic cutter is composed of machine frame, base plate, fixature, small bearing holder and pressing plate, intermediate bearing holder, rotary plate, abrasive dis, and its mainshaft, motor, sizing unit, etc. The finished pipe features high size precision, smooth surface, and hith uniformity in hardness.

Description

technical field [0001] The invention relates to a manufacturing method of a stainless steel automobile exhaust pipe and an automatic stainless steel pipe cutting machine. Background technique [0002] With the development of society, the requirements for vehicle exhaust emissions are gradually increasing, that is, vehicle exhaust emissions must meet environmental protection requirements. Automobile exhaust pipe is an important part of automobile exhaust purifier. The existing stainless steel automobile exhaust pipe is a stainless steel thin-walled pipe, which is cut by strip cutting, welded pipe, wall reduction and diameter reduction, coil pressure detection and cleaning, annealing, straightening and length cutting, straightening, process shrinking, Cutting to length, cleaning, drying, and finishing the finished product. The existing problems are inaccurate size, poor inner and outer surface brightness, uneven hardness, uneven austenitization and more burrs, serious open we...

Claims

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Application Information

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IPC IPC(8): B21C37/08B21D53/84
Inventor 郭秀亭冯宪民樊立奎
Owner 锦州秀亭制管有限公司
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