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Deformation zinc alloy material easily achieving cold machining molding and preparing method and application of deformation zinc alloy material

A zinc alloy and raw material technology, applied in the field of deformed zinc alloy materials and their preparation, can solve problems such as cracking, and achieve the effects of high elongation, good dimensional stability and guaranteed strength

Active Publication Date: 2017-11-24
NINGBO POWERWAY ALLOY MATERIAL
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Problems solved by technology

When the low-copper alloy material is subjected to large deformation cold working, there is a problem of cracking after multiple cold headings

Method used

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  • Deformation zinc alloy material easily achieving cold machining molding and preparing method and application of deformation zinc alloy material
  • Deformation zinc alloy material easily achieving cold machining molding and preparing method and application of deformation zinc alloy material
  • Deformation zinc alloy material easily achieving cold machining molding and preparing method and application of deformation zinc alloy material

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Selected 20 embodiment alloys and 2 comparative example alloys, adopt the inventive method to prepare respectively:

[0033] 1) Accurately weigh each raw material required for preparing the deformed zinc alloy material according to the proportioning ratio;

[0034] 2) Produce ingots by hot-top casting, semi-continuous casting or horizontal continuous casting. During the casting process, 80% of zinc ingots are first put in, and after complete melting, the temperature is raised to 650-900°C, and then the remaining 20% ​​of zinc ingots and For other raw materials, heat up to 500-650°C, then add degasser and modifier, stir after complete melting, remove slag, take samples for component analysis, draw cast and saw cut after passing, and obtain 400-700mm in length ingots;

[0035] 3) Will The ingot is heated to 200-300°C, and then extrud...

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Abstract

The invention discloses a deformation zinc alloy material easily achieving cold machining molding. The deformation zinc alloy material comprises 1.0wt%-3.5wt% of Cu, 0.05wt%-0.5wt% of Mn, not larger than 0.05wt% of Al and the balance Zn and inevitable impurities. Phase compositions of the deformation zinc alloy material comprise a Cu replacement Zn solid solution with Zn as a basal body, a Zn5Cu second phase and a Zn, Mn and Cu intermetallic compound second phase; the tensile strength of the deformation zinc alloy material ranges from 260 MPa to 320 MPa, the elongation percentage is 25% to 35%, the hardnessHV5 is 90 to 100, the medium strength and high elongation percentage are achieved, the good size stability is achieved, the total machining rate can reach 80%-90%, the deformation zinc alloy material can be applied to large-deformation cold machining deformation of cold heading, cold forging, spinning, riveting, deep-drawing and the like, cracking is avoided during large-deformation repeated cold heading, repeated cold forging and deep-drawing machining processes, and the deformation zinc alloy material can be widely applied to products such as zippers, hardware and electric and electronic parts.

Description

technical field [0001] The invention relates to the technical field of deformed zinc alloy and its application, in particular to a deformed zinc alloy material which is easy to be cold-formed and its preparation method and application. Background technique [0002] Cold processing technology is a processing method in which blanks are quickly processed into parts with various complex structures through various molds, such as cold heading, cold forging, spinning, riveting, etc. Compared with the traditional turning technology, cold working can improve the utilization rate of materials, reduce loss and improve product production efficiency, and the structure of cold processed products is uniform and dense, which can be widely used in various standard parts products. Cold processing has become the first choice for metal material processing important means. However, cold working has a large amount of deformation on metals, and general metals are work-hardened materials. Therefor...

Claims

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Application Information

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IPC IPC(8): C22C18/02C22C1/02C22C1/06C22F1/16
Inventor 孙文声郭俊冯振仙唐宁郜晓彬
Owner NINGBO POWERWAY ALLOY MATERIAL
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