Titanium-based amorphous state brazing filler metal with low welding temperature and preparing method of titanium-based amorphous state brazing filler metal

A welding temperature, amorphous technology, applied in welding equipment, welding/cutting medium/material, welding medium, etc., can solve the problems of difficult preparation of amorphous solder and lower melting point of titanium alloy amorphous solder, etc. To achieve the effect of good promotion and practical value, good economic benefits and social benefits

Inactive Publication Date: 2020-01-10
CENT IRON & STEEL RES INST
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Problems solved by technology

[0003] The addition of low melting point alloying elements can effectively reduce the melting point of the titanium alloy amorphous solder, and the solder can also use a lower welding temperature in the subsequent welding process; Difficulty on

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  • Titanium-based amorphous state brazing filler metal with low welding temperature and preparing method of titanium-based amorphous state brazing filler metal
  • Titanium-based amorphous state brazing filler metal with low welding temperature and preparing method of titanium-based amorphous state brazing filler metal
  • Titanium-based amorphous state brazing filler metal with low welding temperature and preparing method of titanium-based amorphous state brazing filler metal

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] The brazing material composition with low soldering temperature in this embodiment is composed of Ti, Zr, V, Cu, Be elements. The mass percent of each chemical composition of the solder is specifically Zr content of 25%, Cu content of 10%, V content of 10%, Be content of 15%, and the balance of Ti.

[0029] TiZrVCuBe was pre-alloyed by magnetic levitation melting and casted into a short rod with a diameter of 20 mm. Samples were taken from cast rods and subjected to DSC melting point tests as figure 1 As shown, the solidus temperature of the solder is 680°C, and the liquidus temperature is 740°C.

[0030] Using the vacuum quenching equipment previously applied by the inventor (China Invention Patent Application No. 201810510425.5), a certain amount of TiZrVCuBe alloy is placed in a high-purity quartz tube. The alloy in the quartz tube is heate...

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Abstract

The invention belongs to the technical field of brazing, and particularly relates to titanium-based amorphous state brazing filler metal with the low welding temperature and a preparing method of thetitanium-based amorphous state brazing filler metal. The brazing filler metal comprises chemical components including, by mass percent, 15%-27% of Zr, 5%-15% of Cu, 5%-15% of V, 5%-15% of Be and the balance Ti, wherein the melting point temperature of the brazing filler metal is lower than 750 DEG C, and the welding temperature is lower than 850 DEG C. The components of the brazing filler metal have strong amorphous forming ability, the vacuum rapid quenching or directional solidification technology can be adopted for preparing an amorphous foil strip or amorphous sheet with the thickness being 0.03-1.5 mm; and the welding temperature of the brazing filler metal is lower than 850 DEG C, and the titanium alloy low welding temperature and medium welding strength welding requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of brazing, and in particular relates to a titanium-based solder with low welding temperature and a preparation method thereof, which are suitable for brazing connections such as titanium alloy non-structural parts, repair of titanium alloy workpieces, low-temperature secondary repair welding, and the like. Background technique [0002] Titanium-based amorphous brazing filler metal is a foil-like strip with an amorphous structure. Its excellent welding performance is widely used in the brazing of titanium alloy thin-walled and special-shaped complex cross-section structural parts. The welding temperature of titanium-based amorphous solder generally exceeds 950°C. This is because the melting point of the solder is mostly above 830°C, and its vacuum rapid quenching preparation process is only suitable for the preparation of 0.03 ~ 0.05mm thick foil tape. With the complex and changeable brazing connection mate...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/32B23K35/40
CPCB23K35/325B23K35/40
Inventor 祁焱梅俊徐立红臧岩赵栋梁
Owner CENT IRON & STEEL RES INST
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