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Manufacturing method of bathroom hardware shell

A production method and hardware technology, applied in the field of bathroom industry, can solve the problems of metal waste and solid waste sand damaging the environment, difficult high-temperature process control, high energy consumption, etc., to avoid machining and long-time polishing, and avoid solid waste The effects of pollutant emission and avoidance of polluting gas emission

Active Publication Date: 2019-07-19
BEIJING KOHLER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its complicated process and difficult control of high-temperature process, casting will produce various casting defects, high energy consumption, high pollution and other reasons, and it is increasingly not favored by the manufacturing industry.
Especially zinc alloy materials, regardless of gravity casting or pressure casting, are extremely volatile and oxidized under high-temperature melting, and the yield rate is low. At the same time, metal waste and solid waste sand are generated during the casting process to damage the environment. The core-pulling bathroom products are powerless, and more and more places are restricted by environmental protection, and there is an urgent need to develop a new forming technology to replace the traditional casting technology

Method used

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  • Manufacturing method of bathroom hardware shell
  • Manufacturing method of bathroom hardware shell
  • Manufacturing method of bathroom hardware shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a method for manufacturing a bathroom hardware shell, which includes the following steps:

[0032] S10. Blank production

[0033] Taking the production of zinc alloy or zinc-aluminum bathroom hardware housings as an example, in this embodiment, zinc alloy raw materials are first selected to be cast and extruded into rods or purchased profiles, and the cross-section of the rods or purchased profiles can be circular, Square, square, oval, polygonal or irregular shape, the diameter of the bar is 25-65mm, and preferably 35mm, the zinc alloy can be ZnAl5, and its tensile strength is: 280-380Mpa , The yield strength is: 260~310Mpa, and the elongation is 4~9%.

[0034] S20, blank cutting

[0035] The prepared blank is cut into a blank with a length of 50-500 mm, and the cutting method is not limited to physical cutting or chemical cutting.

[0036] For example, the zinc alloy blank prepared in step S10, i.e. the zinc alloy rod or purchased profile i...

Embodiment 2

[0061] This embodiment provides a method for manufacturing a bathroom hardware casing (wherein the structure of the bathroom hardware casing described in Embodiment 2 is different from the structure of the bathroom hardware casing in Embodiment 1), which includes the following steps:

[0062] S10. Blank production

[0063] Taking the production of zinc alloy bathroom hardware shells as an example, in this embodiment, zinc alloy raw materials are firstly selected for casting and extruding into rods, and the cross-section of the rods can be round, square, square, oval, polygonal or irregular. shape, the diameter of the rod is 25-65 mm, and preferably 50 mm, and the zinc alloy may be ZnAl5.

[0064] S20, blank cutting

[0065] The zinc alloy blank prepared in step S10, that is, the zinc alloy rod is placed on a sawing machine (such as a Weiye sawing machine), and the zinc alloy rod is cut at a speed of 30m / min. The length of the cut blank is 50-500mm. Preferably, For example 25...

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Abstract

The invention discloses a manufacturing method of a bathroom hardware shell, which includes blank making, blank cutting, blank rough forming, blank preliminary forming, blank net forming, cutting riser, machining, polishing and surface treatment. The advantages and beneficial effects of the present invention are: no casting method is required for forming, no sand core is required, the problem that zinc alloy sanitary products cannot be core-pulled to form zinc alloy products with complex shapes, the forming wall thickness is uniform, the surface quality is good, and the raw materials are utilized. High yield, high yield, and no solid waste.

Description

technical field [0001] The invention belongs to the field of sanitary ware industry, and relates to a method for manufacturing sanitary hardware shells, in particular to a method for forming sanitary faucets such as kitchen faucets, basin faucets, shower faucets, and bathtub faucets. Background technique [0002] Commonly used metal materials for bathroom hardware products include copper alloy, zinc alloy, aluminum alloy, stainless steel, etc. Among them, copper alloy and zinc alloy are used more frequently and in a wider range, but the traditional forming method of the above cavity parts is casting. However, casting is increasingly not favored by the manufacturing industry due to its complex process and difficult control of high-temperature processes, which will produce various casting defects, high energy consumption, and high pollution. Especially zinc alloy materials, regardless of gravity casting or pressure casting, are extremely volatile and oxidized under high-tempe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/001B21D26/049B23P15/00B21C35/023E03C1/0404B21D26/055Y10T29/4943B21K1/24
Inventor 王小军程朝阳张俊惠
Owner BEIJING KOHLER LTD