Thin wall metal casing plastic composite pipe and its producing method

A metal shell, plastic parts technology, applied in the direction of pipe elements, pipes/pipe joints/pipe fittings, pipes, etc., can solve the problems of unfavorable mass production, unstable quality, low efficiency, etc. Low, high welding efficiency

Inactive Publication Date: 2007-04-11
浙江芽芽特种管业有限公司
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Problems solved by technology

However, manual welding of thin-walled metal shells not only requires welders to master superb weldin...
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Abstract

The present invention relates to composite pipe fitting with thin wall metal casing and plastic layer and its production process. The composite pipe fitting is used in connecting thin wall metal pipe with plastic lining. The composite pipe fitting features its metal casing comprising several parts with seams of straight lines and circular lines. Therefore, the composite pipe fitting may have its thin wall metal casing welded in production line with manipulator in low cost, high quality and high efficiency.

Application Domain

Branching pipesRigid pipes +2

Technology Topic

Thin walledManipulator +4

Image

  • Thin wall metal casing plastic composite pipe and its producing method
  • Thin wall metal casing plastic composite pipe and its producing method
  • Thin wall metal casing plastic composite pipe and its producing method

Examples

  • Experimental program(1)

Example Embodiment

[0020] Hereinafter, the present invention will be further described in detail with reference to the drawings and specific embodiments:
[0021] Figure 1: The elbow is composed of plastic parts and a metal shell. The elbow shell is composed of three parts with different shapes-W1, W2, and W3. W1 is composed of a tube with only one end turned inward twice and a half tube cut along the axis, W2 is composed of a half tube cut along the axis and a 1/4 spherical shell; W3 is a circle Disc, the hole in the middle of the disc has flanging.
[0022] Figure 2: When welding W1, W2, and W3 as a whole, between W1 and W2 are two straight welds and 1/2 circumferential weld, and the joint between W3 and W1W2 is a circle of circumferential welds.
[0023] Figure 3: The tee is composed of plastic parts and a metal shell. The tee shell is composed of three parts-two W1 and one W3.
[0024] Figure 4: When welding two W1 and one W3 into a whole, there are two straight welds and 1/2 circumferential weld between the two W1s, and a circle of circumferential welds between W3 and the two W1s.
[0025] Figure 5: Straight-through is composed of plastic parts and metal shell. Straight-through shell is composed of three parts-two W3 and a section of thin-walled tube.
[0026] Figure 6: When welding W3 with a thin-walled tube, there are two circles of circumferential welds between the two W3s and the thin-walled tube. .
[0027] Figure 7: The pass-through is composed of plastic parts and a metal casing, and the pass-through casing is composed of a W3 and a W4. W4 is a thin-walled tube with two flanges at one end.
[0028] Figure 8: When welding W3 and W4 into a whole, there is a circle of welding seam between them. .
[0029] Figure 9: The variable-diameter straight-through is composed of plastic parts and a metal shell, and the variable-diameter straight-through shell is composed of one W3 and one W5. W5 is a thin-walled reducer with two flanges at one end.
[0030] Figure 10: When welding W3 and W5 into a whole, there is a circle of welding seam between them.
[0031] Figure 11: The variable diameter straight through is composed of plastic parts and a metal shell, and the variable diameter through shell is composed of two W3s of different sizes and one reducing tube.
[0032] Figure 12: When welding two W3 and reducing pipes into a whole, there are two circles of circumferential welds with different diameters between them.
[0033] Figure 13: The four-way is composed of plastic parts and a metal shell. The four-way shell is composed of two W3 and two W6. W6 is composed of a tube with two flanging at one end and two half tubes cut along the axis of the tube.
[0034] Figure 14: When welding two W3 and two W6 into a whole, there are two straight welds between the two W6, and two circles of circumferential welds between W3 and W6.

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Classification and recommendation of technical efficacy words

  • low production cost
  • Simple structure
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