Backing ring made from red copper in use for plasma arc welding sheet metal and fabricating method

A technology of plasma arc and manufacturing method, applied in the field of red copper backing ring and its manufacturing, can solve the problems of difficult machining, increase production cost, waste metal and energy, etc., and achieve the effects of good quality, improved effect and saving processing cost.

A technology of plasma arc and manufacturing method, applied in the field of red copper backing ring and its manufacturing, can solve the problems of difficult machining, increase production cost, waste metal and energy, etc., and achieve the effects of good quality, improved effect and saving processing cost.

CN1562560AInactive Publication Date: 2005-01-12金文址
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  • Backing ring made from red copper in use for plasma arc welding sheet metal and fabricating method
  • Backing ring made from red copper in use for plasma arc welding sheet metal and fabricating method
  • Backing ring made from red copper in use for plasma arc welding sheet metal and fabricating method

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] A method for manufacturing a red copper backing ring for plasma arc welding of a thin plate is characterized in that it comprises the following steps:

[0019] a. Put the copper wire with a diameter of 2-4mm on the roller of the stretching machine;

[0020] b. After the red copper wire is stretched through the drawing die for multiple passes, the red copper backing ring blank wire is obtained;

[0021] c. The red copper backing ring blank line is cut into a specified length of red copper backing ring blank line with a cutting device;

[0022] d. Put the red copper forming backing ring blank line on the straightening device for correction to obtain the finished red copper forming backing ring.

[0023] The number of stretching times in the above step b on the stretching machine is 3-6 times.

[0024] Copper backing ring for thin plate plasma arc welding, the copper...

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Abstract

A supporting ring for the plasma arc welding of thin plate is made up of red copper through drawing raw red copper wire multiple passes, cutting short by needed size, shaping and correcting. It can improve welding quality.

Description

technical field [0001] The invention relates to a backing ring for plasma arc welding, in particular to a red copper backing ring for thin plate plasma arc welding and a manufacturing method thereof. Background technique [0002] Traditionally, when plasma arc welding is performed on thin metal plates with a thickness of less than 0.8mm, the back-shaped backing plate fixture must be used to assemble the compression weldment. In order to weld the stainless steel corrugated sheet of the mechanical seal of the bellows, the steel forming pad manufactured by mechanical processing is commonly used at present. Welding of steel forming backing rings or brass forming backing rings, and the yield rate of steel forming backing rings and brass forming backing rings processed by machining methods is 80%. Using this method to process plasma arc welding backing rings, a lot of metal is wasted and energy, which increases production costs. Since the thermal conductivity of steel forming bac...

Claims

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Application Information

Patent Timeline
12 Jan 2005
Publication
CN1562560A
IPC
B21C1/04; B21F1/02; B21F11/00; B21F37/00; B23K9/00; B23K9/32; B23K10/02; B23P23/04
Inventors
金文址