Industry News
Pay Attention in Crusher Gasket Using Process
1. Rotor body is made of a certain type of sand making the key components, which are caused by a Q345 (16Mn) low alloy steel plate by welding form a hollow cylinder, mounted on the upper shaft spindle device with a tapered, jacket and keys to connect to transfer high-speed heavy torque (the assembly shown in Figure 1). The wear parts mainly by a liner, to protect the ring 2, sub-tray 3, throw the first material, 4, 5 under the protection ring, sub-plate 6, the deflector 7, back plate 8 and lower deflector 9, the anvil and so on. Which protect the ring, throwing the first material, such as the protection of welded rings, shall not be discussed.
Sand the top of the work material from the center of the rotor into the rotor chamber blanking ring center, the center of the rotor sub-tray wear evenly distribute the material to the rotor speed of each channel, the channel terminal installation of a special alloy materials wear-resistant material throw head. Rotor speed channel in the material will quickly accelerate to 65 to 80 m / s line speed, the first impact and high-strength cast material head out along the tangent direction of the projectile, the impact to the eddy cushion material in the crushing chamber, anvil, or reentry material on the back, have a strong impact from the crushing and grinding. The study, the rotor body wear-resistant lining of the force main from the body with high-speed rotation of the rotor friction aggregate impact of erosion and the inertial force, friction aggregate load is low, the impact of inertial forces with the size and quality of materials increases.
2. High chromium cast iron as the main alloying elements are chromium, supplemented by a certain amount of other alloying elements and the composition of the anti-wear material, usually chromium content of 12% to 35%, if excessive chromium in the matrix will be the formation of many hard carbide, while having excellent mechanical properties, especially wear resistance, but an extension of poor performance, not certain as to the tensile strength required to switch the font liner material.
3. With a prepared sand box for hand-shape, it should be noted gating system set up and the reasonable use of cold iron, in strict accordance with process diagram. Co-box cavity should be carefully examined before it open in order to ensure the filling of molten iron, the co-box form to follow when pouring pouring cold temperatures baked the principle that if pouring temperature is too high, not only easy to burn cold iron, and large shrinkage of molten iron, easy to produce casting defects, so the pouring temperature should not be too high, the general election in 1380 ~ 1420 ℃ between. After pouring the sand box should be open in time, it is a good material to obtain fine grain cast structure in the jaw crusher machine.
In the vertical shaft impact crusher rotor on the body applications, the average life expectancy of up to 500 hours or more, reduce the cost of sand, made sand making up for much less than.
Related Articles：
HXJQ Grasps New Development Opportunity in Crusher IndustryTechnical Innovation Is the Task of Development of Jaw CrusherBy Commands of Self-Innovation Hongxing Big Crushers EruptMalfunctions and Solutions of the Double Roll CrusherSand Makers will Assist the Construction IndustryCrushers Fully Support the Development of Transport Undertakings