Manufacturing method and product of lead-free copper water outlet pipe

A manufacturing method and technology for water outlet pipes, which are applied in valve details, engine components, valve housing structure, etc., to achieve the effect of improving yield and production efficiency, ensuring structural strength, and high material utilization.

Inactive Publication Date: 2012-09-05
深圳成霖实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the structure and manufacturing method of the existing single-handle or double-handle faucet outlet pipe with pull rods have many shortcomings to be solved and overcome.

Method used

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  • Manufacturing method and product of lead-free copper water outlet pipe
  • Manufacturing method and product of lead-free copper water outlet pipe
  • Manufacturing method and product of lead-free copper water outlet pipe

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Embodiment Construction

[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] Such as figure 2 , 3 , the present invention provides a preferred embodiment of a lead-free copper outlet pipe manufacturing method, which mainly includes the following method steps:

[0058] a. Hydraulic bulging forming of a copper outer tube 20: That is, a copper outer tube 20 is formed in advance by hydraulic bulging technology, so that a chamber channel 21 is formed inside the outer tube 20, and a cavity channel 21 is formed at both ends respectively. A water inlet 22 and a water outlet 23 , the water inlet 22 and the water outlet 23 define an opening 221 , 231 on each side.

[0059]...

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Abstract

The invention discloses a manufacturing method and a product of a lead-free copper water outlet pipe, can solve various problems in the conventional manufacturing method and the product of a lifting hole-containing water outlet pipe, and particularly provides a manufacturing method of performing a lead-free copper pipe and loading the preformed lead-free copper pipe into a bulged copper outer tube to serve as an inside water outlet channel. The scheme of the preferable manufacturing method is that: a lead-free copper pipe and a preformed water inlet end joint are welded with each other, and are loaded into a hydraulically bulged copper outer pipe on which a lifting rod-containing inlet hole is preformed; and the opposite ends of the water inlet end joint and the copper outer pipe are welded, and a water outlet end joint is welded on the opposite ends of the copper outer pipe and the lead-free copper pipe in turn so as to complete manufacturing a lead-free copper water outlet pipe product. The manufacturing method is easy and low in welding difficulty. Meanwhile, product yield and production efficiency can be dramatically improved and safe water quality can be ensured. The lead pollution is avoided.

Description

technical field [0001] The invention relates to a water outlet component, in particular to a method for manufacturing a lead-free copper water outlet pipe and its products, which can be installed on a faucet body and are suitable for lifting rods. Background technique [0002] Existing single-handle or double-handle faucet outlet pipes with pull rods all include a copper outer pipe. The manufacturing methods are roughly divided into two types. The first method uses common casting methods, but the surface of the product is prone to defects, and the manufacturing process is difficult. The method is complicated, the defect rate is high, and it is easy to cause environmental pollution. Therefore, more and more manufacturers adopt the second hydraulic bulging technology to solve the above problems. [0003] When using the above-mentioned curved hydraulic bulging outer pipe 11 to make the water outlet pipe 10, as figure 1 As shown, a partition 12 needs to be welded close to the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00F16K27/00
Inventor 谭锡桥
Owner 深圳成霖实业有限公司
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