Surface treatment method for titanium alloy ingot blank

A treatment method and surface treatment technology, applied in jewelry and other directions, can solve the problems of reducing product yield and increasing production cost, and achieve the effect of eliminating internal stress, enhancing surface bonding force and uniform distribution.
CN114540892AActive Publication Date: 2022-05-27WESTERN METAL MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WESTERN METAL MATERIAL
Publication Date
2022-05-27

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Abstract

The invention relates to the technical field of titanium alloy surface treatment, and provides a surface treatment method of a titanium alloy ingot blank. The titanium alloy ingot blank is sequentially subjected to oil removal, acid pickling, activating treatment, nickel electroplating, heat treatment and copper electroplating. According to the method, the surface of the ingot blank is pretreated through oil removal, acid pickling and activating treatment to improve the binding force of a plating layer and the titanium alloy ingot blank, then the nickel plating layer serves as an inner coating layer to prevent the titanium alloy ingot blank from reacting with copper, the internal stress of the nickel plating layer is eliminated through heat treatment, the ductility of the nickel plating layer is improved, the nickel plating layer and a base body are mutually diffused, and the corrosion resistance of the titanium alloy ingot blank is improved. And finally, the copper plating layer is used as an outer coating layer of the titanium alloy ingot blank, and the copper plating layer plays a lubricating role when the titanium alloy ingot blank is extruded. Compared with a conventional copper sheet coating layer, the obtained lubricating layer is more beneficial to uniform distribution of extrusion stress on an ingot blank, and surface defects during subsequent extrusion preparation of a pipe blank are reduced.
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Description

technical field

[0001] The invention relates to the technical field of titanium alloy surface treatment, in particular to a surface treatment method of a titanium alloy ingot. Background technique

[0002] During the process of hot extrusion of titanium alloy ingots to prepare tube blanks, lubrication between the ingots and the molds is required. The main purposes of lubrication are as follows: 1. Reduce the friction between the ingots and the molds and protect the molds from wear on their surfaces. , to improve the service life of the mold and improve the surface quality of the tube blank; 2. Reduce the extrusion force during the forming process to ensure that the hot extrusion of the ingot can be carried out smoothly.

[0003] At present, before the hot extrusion of titanium alloy ingots, the surface is usually treated to achieve the effect of lubrication. There are usually three ways: the first is to lubricate with grease. The grease is made of graphite, molybdenum disulf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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