Botou Schindler Machine Tools produces direct-selling cast iron inspection square boxes

生产地：

河北省泊头市

Botou Schunda Machine Tool Platform Measuring Tool Co., Ltd. specializes in the production of cast iron inspection square boxes. The company's products are widely used in machinery manufacturing, parts processing, petrochemicals, oil refining, power generation, shipbuilding, metallurgy, mining, textile and other industries. The company has an independent quality inspection department. From the inspection of raw materials to the appearance, mechanical properties and physical properties of each batch of finished products, full-time quality inspectors regularly inspect them to prevent any unqualified product from leaving the factory. The cast iron inspection square box is mainly used to inspect the parallelism and perpendicularity of parts and to support the workpiece when marking. It is generally a cube with the same side length. Various specifications and equal height square boxes and rectangular tubes can be made according to user requirements
Purpose of Inspection Square Box The square box is mainly used for the inspection and marking of the parallelism, verticality, etc. of parts. The box is a hollow cube made of cast iron with three working surfaces. One of the working surfaces has a grooved box. The environmental conditions for verification are normal temperature and humidity
Requirements for inspection of square boxes. Each working surface of the square box must be free of rust, scratches, cracks, dents and other defects that affect the measurement performance. The working surfaces should be painted with clear sand and the edges should be clear. There should be a sign on the inner wall of the square box with chamfered edges, and it should be marked with specifications, dimensions, grade factory number, and manufacturer name
Inspection of the accuracy of cast iron square boxes. In addition to verifying the flatness of the square boxes made by scraping, the coloring method must also be used The side length of the contact spot is equal to the number of spots in any square, and the level is not less than a point and the level is not less than a point
The verification method of the square box is similar to that of the ordinary cast iron square box. For square boxes with side lengths of and below, When calibrating, place the measuring blocks at both ends of the square box to be inspected. Place the knife-edge ruler on the working surface of the measuring block, and then use the measuring blocks to test the plugs at each inspected point. When the measuring block group is just inserted, the size will be the same as that of the measuring block. The difference in size of the gauge blocks at both ends is the deviation between the two ends of the inspected point. The verification should also be carried out on the straight lines at each position measured on several sections in the longitudinal, transverse and diagonal directions of the square box working surface. When the error directions are consistent, the maximum value is taken. When the error directions are inconsistent, the sum of the absolute values of the maximum positive difference and the maximum negative difference is taken as the flatness of the plane under inspection
Specifications and accuracy of the inspection square box
> Specifications

Flatness of the working surface

Verticality of the working surface and parallelism of the groove to the bottom and sides

Accuracy level

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The cast iron inspection square box has outstanding performance and outstanding quality. Our company is located in the hometown of casting, using new processes, new technologies, scientific management, advanced casting technology, completely using foam solid mold, resin sand casting, materials, artificial tempering aging or electric vibration aging of castings, dual-frequency quenching machine tools . The products are reasonably priced, the service is considerate, credibility and integrity are the first priority, and we have made friends at home and abroad all over the world. We welcome new and old users to visit us for guidance!