The present invention discloses a method for preparing tungsten alloys of copper and zinc.

Specific process is: will micron pure tungsten powder and tungsten coated copper powder and micron copper, zinc powder by mixing, extrusion and cold isostatic liquid spark plasma sintering (SPS) and other methods to prepare a The relative density of 95% or more of tungsten copper-zinc alloy material. The advantages: by the production method according to the present invention can be prepared in more than 95% relative density, but also has high hardness and high strength composite tungsten, Cu and Zn. Brass with respect to pure copper has high strength and hardness, integrated tungsten high strength, high density and high conductivity brass, high thermal conductivity, high strength and hardness properties, prepare a suitable spark processing, electronic packaging and aerospace materials in the field of high temperature, corrosion of tungsten alloy of copper and zinc.


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The present invention relates to a WC - Co or WC - Co - Cr thermal spray powder preparation method of the tungsten carbide powder and cobalt powder or tungsten carbide powder, cobalt powder and chromium powder are mixed in a certain ratio to prepare a slurry, spray granulation, the granulated powder is sieved and the degreasing treatment, in the vertical high-temperature sintering furnace rapid sintering the powder in free movement continuously and evenly by heating and cooling zones, and the completion of the sintering in the heated zone, the protection atmosphere: nitrogen, sintering temperature: 1000 ~ 1700 ℃, sintering time: 0.1 ~ 5s, and finally sintered powder required for grading and screening. The invention solves the spherical tungsten carbide matrix composites using thermal spray powder in the presence of long production cycle, low productivity and high energy consumption and other problems during the preparation of the traditional method; the use of the present invention, the process is simple, continuous production, energy saving and environmental protection, the resulting powder composition uniformity, high sphericity and good mobility, can be widely used in aerospace, machinery manufacturing, and petroleum and chemical industry.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
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The utility model relates to the technical field of timekeepers and specifically provides a tungsten steel hard alloy font nail.

The tungsten steel hard alloy font nail comprises a tungsten steel hard alloy font and nail feet connected on the lower surface of the tungsten steel hard alloy font. No matter how the air temperature or air humidity changes, the tungsten steel hard alloy font nail remains undeformed, wear-resistant, high-temperature-resistant and oxidation-resistant.

Therefore, a watch using the tungsten steel hard alloy font nail is also firm and durable and can maintain freshness and cleanliness for long. After being formed, the tungsten steel hard alloy font nail enables excellent glossiness and tenderness through polishing. Meanwhile, the tungsten steel hard alloy font nail has an attractive and elegant appearance. Electroplating and paint spraying operations during a conventional font nail processing procedure are no longer required. Environmental protection is achieved.

The labor cost is further reduced. After the upper surface is polished, the tungsten steel hard alloy font nail can have surface fineness reach more than 14 degrees and achieve ultra-precision mirror surface effects. The tungsten steel hard alloy font nail enables good surface light sensation effects.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
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The invention relates to the technical field of compound preparation and in particular to a preparation method for tungsten disulfide.

The preparation method comprises the following steps: uniformly mixing tungstic acid with an ammonium trisulfide solution to obtain a mixture; putting the mixture into vulcanization equipment, vacuumizing, and heating in the vulcanization equipment at first stage for 50-70 minutes at the temperature of 650-750 DEG C; heating at second stage for 110-130 minutes at the temperature of 1350-1400 DEG C to obtain tungsten disulfide. According to the preparation method, the process is short, the used equipment is simple, and the environmental pollution is alleviated at the same time.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.