The two- stage empty-field mining method should adopt large-diameter deep-hole mining; the mining site should use scraper or other equipment with large mining capacity. When using flat-bottom structure, it should be cleaned by remote-controlled scraper or other mechanical equipment. bottom;
3 When using horizontal deep hole falling ore, the space for cutting and pulling the bottom should be 30%~40% of the amount of caving ore . When using vertical deep hole lateral collapse, the cutting vertical trough should be placed in the mine. At the thickest part of the body, the width of the cutting vertical groove should be 20% of the thickness of the chipping strip ; when the large diameter is used to collapse the deep-hole spherical drug pack, the compensation space volume should be greater than 35% ;
4 When the stope is arranged along the strike and the vertical splitting collapses, the mine mining should be collapsed from the side to the cutting trough; when the stope is arranged in the vertical direction, the collapse should be pushed from the upper plate to the lower plate.
Tungsten carbide mixed Metal Alloy Powder is commonly used in PTA (Plasma Transferred Arc) welding. PTA welding is a process that involves the deposition of a hardfacing material onto a base metal to provide wear resistance, corrosion resistance, and improved mechanical properties.
Tungsten carbide is a very hard and wear-resistant material, making it ideal for applications where high abrasion resistance is required. It is often mixed with other metals, such as nickel, cobalt, or chromium, to form a metal alloy powder. These metal alloys enhance the properties of the tungsten carbide and improve its compatibility with the base metal.
The tungsten carbide mix metal alloy powder is typically fed into the PTA welding torch, where it is melted and propelled onto the surface of the base metal using a high-energy plasma arc. The molten powder forms a hard, dense coating that bonds with the base metal, providing excellent wear resistance and protection.
The specific composition of the tungsten carbide mix metal alloy powder can vary depending on the application requirements. Different ratios of tungsten carbide and other metals can be used to achieve desired properties, such as hardness, toughness, and corrosion resistance.
Overall, tungsten carbide mix metal alloy powder is a versatile and effective material for PTA welding, offering superior wear resistance and protection for various industrial applications.
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