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Multi-specification combined elbow welding tool and welding method for same

A multi-specification, welding tooling technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of the size and angle of the finished elbow, difficult to control, low qualification rate, and large deviation of the size of the head, so as to improve the quality of the finished product. Quality and production efficiency, the effect of solving positioning problems

Active Publication Date: 2014-04-02
NANJING MEISHAN METALLURGY DEV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The actual production of 15° elbow pieces is sawed by the sawing machine without processing, so the size deviation is relatively large, which makes it difficult to control the size and angle of the finished elbow with 6 tailor-welded pieces, and the pass rate is low

Method used

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  • Multi-specification combined elbow welding tool and welding method for same
  • Multi-specification combined elbow welding tool and welding method for same
  • Multi-specification combined elbow welding tool and welding method for same

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Embodiment Construction

[0028] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0029] Such as Figure 5 and Figure 6 The ceramic composite elbow shown is a common 90° composite elbow. The actual production is to process it into a single piece of 15° elbow, and then burn the ceramic layer on the inner layer of the 15° single piece elbow, and then carry out Splicing and assembly welding, K is the weld between the single-piece elbow pieces, 6-piece welding is a 90° elbow, and finally the flange is welded at both ends of the elbow to become the final product, and M is the connection between the elbow piece and the joint. Welds between flanges.

[0030] Such as figure 1 and figure 2 Shown are the front view and top view of the multi-sta...

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Abstract

The invention discloses a multi-specification combined elbow welding tool, which comprises a base and an upper seat, wherein the base is connected with the upper seat in a rotating way; a screw rod is arranged on the base, and is also connected with a positioning flange on the base through a connecting nut; the structure of the upper seat is the same as that of the base; a positioning seat is also arranged on the base; a positioning shifting fork is connected to the positioning seat through a pin shaft; a locking mechanism is arranged on the positioning shifting fork and the base; an angle adjustment mechanism is also arranged between the base and the upper seat. According to the multi-specification combined elbow welding tool, the size and the angle of a finished product elbow is directly determined through the tool, and flanges and elbow pieces are placed on the tool for integral assembly-welding, so that the angle and the size of the elbow can be ensured, and the finished product elbow can be ensured to be qualified.

Description

technical field [0001] The invention relates to a welding tool for steel pipe elbows, in particular to a multi-standard composite elbow welding tool and a welding method thereof. Background technique [0002] "Ceramic-lined composite steel pipe" uses self-propagating combustion technology to coat an acid-resistant and corrosion-resistant ceramic layer on the inner wall of ordinary steel pipes. Abrasion resistance, especially at the elbow, the fluid medium transported in the pipeline has more serious erosion and wear on the elbow, so the requirements for the abrasion resistance of the elbow are higher. The ceramic composite elbows produced in the past were first directly sawed with a sawing machine to cut the 15° elbow pieces, and then fired and plated ceramics on a single piece, and then spliced ​​and welded, 6 pieces were assembled and welded into a 90° elbow, and finally the elbow Flanges are welded at both ends. The actual production of 15° elbow pieces is sawed by...

Claims

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Application Information

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IPC IPC(8): B23K37/04B23K31/02
CPCB23K31/02B23K37/0426
Inventor 宁宇邢赞根
Owner NANJING MEISHAN METALLURGY DEV
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