Casting iron balls include high chromium balls, medium chromium balls and low chromium balls. Quality index of high chromium casting ball: The chromium content of the high chromium ball is 10.0% or more. The carbon content is between 1.80% and 3.20%. According to national standards, the hardness of the high chromium ball must be no less than 58hrc, and the impact value should be greater than or equal to 3.0j/cm2. To achieve this hardness, the high chromium ball must be quenched and tempered at high temperature. At present, there are two methods for quenching high chromium balls in China, including oil quenching and wind quenching. If the test hardness of the high chromium ball is lower than 54HRC, it means that it has not been quenched. Quality index of medium chromium casting ball The specified chromium content of the medium chromium ball ranges from 3.0% to 7.0%, and the carbon content is between 1.80% and 3.20%. Its impact value should not be less than 2.0j/cm2. According to national standards, the hardness of the chrome ball should be greater than or equal to 47hrc. In order to ensure quality, medium chromium balls should be tempered at high temperature to eliminate casting stress. If the surface of the iron ball is black and red, it proves that the iron ball has been tempered at high temperature. If the surface of the iron ball still has the metal color, we can judge that the iron ball has not undergone high temperature tempering treatment. Quality index of low chromium casting ball Generally speaking, the chromium content of the low chromium ball is 0.5% to 2.5%, and the carbon content is from 1.80% to 3.20%. Therefore, according to the national standard, the hardness of the low chromium ball should be no less than 45hrc, and the impact value should be no less than 1.5j/cm2. Low chromium balls also need high temperature tempering treatment to ensure quality. This treatment can eliminate casting stress. If the surface of the iron ball is dark red, it indicates that it has undergone high temperature tempering treatment. If the surface is still metallic color, it means that the iron ball has not been tempered at high temperature. Casting iron balls are usually used in various large-scale mines, cement plants, chemical plants, power plants, quartz sand plants, silica sand plants, etc.
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Used Sanny Zooomlion Chemical Ready-Mix Plantation Concrete Equipment Making Machine Batch Plant Concrete is mixed in a concrete batch plant. In a concrete batch plant, the various ingredients used to make the type of concrete being used - such as Portland cement, aggregates (gravel, crushed stone, sand, etc.), and water - are combined in a large, mechanical, and sometimes computer-aided machine, mixed and prepared for use at a job site. The end product (concrete) is then put to use as a raw material in laying down the basics of buildings and paving roads and other open areas. The piping of drains also requires concrete. A concrete batching plant ideally has many more components to it. It is the assembly of tools and machines such as mixers, cement batchers, aggregate batchers, conveyors, radial stackers, aggregate bins, cement bins, heaters, chillers, cement silos, control. These accessories, in turn, are of different kinds. For example, mixers can be either horizontal or tilt up and of both types in certain cases. Concrete can be mixed to a customer's specific requirements and is sold and bought by volume (generally in bags ranging from 45 pounds to 80 pounds). This is why it is perfect for small construction or renovation projects in Dallas when you may only need to use half a yard worth of concrete.
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We make manufactured stone and brick with cement and lightweight aggregate to reproduce a strength and beauty of natural stone and also produced more than 30% lighter than natural for ease of installation.
