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About UsShijiazhuang Xuda Safety Tools Co., LTD. which was established in 1986 , is a professional factory to produce non-spark safety tools in China. Professional technology, advanced producing equipment, scientific processing technique and perfect checking measure guarantee the best quality of xinda non-spark safety tools.
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ProductsThere are 10 categories,more than 180 series and thousands of types of the tools, all of products are made of Aluminum bronze or beryllium copper, the products have the feature of high rigidity, good tenacity.
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NewsXinda always sticks to the following enterprise principle:"develop by quality, treat the customers with honesty and credit".We hope that our products can provide more safety and convenience to all of the customers and we welcome all the friends at home abroad to Xinda.
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ServiceWe can also design and produce the special type products as the customer’s requirement. Xinda always sticks to the following enterprise principle:"develop by quality, treat the customers with honesty and credit". We hope that our products can provide more safety and convenience to all of the customers.
Mechanism of explosion-proof tools
Sep 30,2019
The tools and equipment such as drills, picks, hammers, pliers, wrenches, and spreaders usually made of iron and steel materials during their fierce action or fall due to misses,will generate sparks which are hidden sources of ignition, so these tools cannot be used in explosion hazardous areas.
Iron and steel materials have high strength and hardness and are suitable for manufacturing tools, but the strength and hardness of steel materials increase with the increase of carbon content.However, research on the mechanism of friction spark generation in steel materials shows that it is precisely the carbon contained in steel is the source of friction sparks.In order to eliminate friction and impact sparks of tools, people turned the direction of material to copper.
Copper is used as an explosion-proof tool material. Compared with steel, there are two significant differences:
1.Does not contain carbon. No oxygen-iron-carbon reaction chain, so no spark
2.The strength and hardness of copper are relatively low, and the thermal conductivity is higher than that of steel. When friction or impact occurs, local friction points will be plastically deformed to avoid friction energy concentrated on individual points. In addition, the material's high thermal conductivity，the heat generated by friction is quickly dissipated to the substrate to reduce the risk of hot and high temperatures at the point of frictional impact.
The above two points are the principle of explosion-proof tools.
However, the strength and hardness of pure copper is too low to be directly used as a tool, and appropriate metal elements such as beryllium, aluminum, titanium, and nickel need to be added to smelt into a copper alloy to increase its strength and hardness.
At present, various copper-based alloys such as beryllium bronze, aluminum bronze, and J892 copper alloy have been successfully used in explosion-proof tools in the industry.
Contact Us
E-mail :
info@xdtools.com
Phone/Wechat/WhatsApp：
+86-15830107628
Address：
Xinleitou Industry, Xinji City, Shijiazhuang City, Hebei Pro.，China.
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