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 co

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

[0032] Twenty example alloys and 2 comparative example alloys were selected and prepared by the method of the present invention:

[0033] 1) Accurately weigh the raw materials required to prepare the wrought zinc alloy material according to the ratio;

[0034] 2) Ingots are produced by hot top casting, semi-continuous casting or horizontal continuous casting. During the casting process, first put in 80% of the zinc nugget, after it is completely melted, the temperature is raised to 650-900℃, and then the remaining 20% ​​of the zinc nugget and For other raw materials, heat up to 500-650℃, then add degassing agent and modifier, stir and remove slag after being completely melted, take samples for composition analysis, draw casting and sawing after qualified, and obtain a 400-700mm length Ingot

[0035] 3) Put The ingot is heated to 200-300℃, and then extruded on...

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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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