This article collected some of the options selected valve blank should be considered technical parameters, for industry reference. The rough machining commonly used castings, forgings, profiles and welding parts. Different types of rough and rough precision, roughness and hardness on the machining process has a direct impact. Select the valve blank should consider the following factors: ⑴ parts of the material and the organization of materials and performance requirements: the provisions of the design drawings on the material, in essence, determines the type of rough. For example, parts made of cast iron must be cast to make the blank. For steel parts, the mechanical properties of the material should be taken into account when selecting the stock. For example, the manufacture of high-pressure valve parts generally should use forgings or welding parts, to ensure that the material has good mechanical properties. ⑵ parts of the structure and shape dimensions: the shape and shape of the parts affect the rough selection of an important factor, for example, the structure of complex valve body should use castings as far as possible. Large size of the valve body can choose sand casting; small size is the use of investment casting. ⑶ the size of the production program: the larger part of the production program, the use of high precision and high efficiency of the blank manufacturing method, the better economic results. ⑷ rough manufacturing conditions: the scene should be based on the status of the equipment and technology to choose the rough, and consider the prospects for the development of advanced rough production methods.
Mast Section
A Tower Crane is an inverted L-shaped structure that is capable of lifting several tons of weight to precarious heights.
The most striking feature of this crane is that it is self-building and can allow a building to be constructed adjacent to or even around it.
Tower crane mast section ( tower crane mast and tower crane basic mast ) is a steel structure with a normally square section, whose main mission is to provide the tower crane with sufficient height.
Normally it is formed by lattice modules that facilitate the transport of the crane. For assembly, these modules will be joined by screws, all of which will be connected to the projected height. Its shape and dimension vary according to the necessary characteristics of weight and height.
Overall, the mast section is a critical component of a tower crane, providing the necessary height and support for the crane to perform its lifting and moving operations.
BQ also supplying other Steel Structure spare parts of tower crane like Basic Mast Section, Fixing Angle (or Reusable Fixing Angle), Anchorage Frame,Telescoping Cage Jacking Cage, Tower Crane Yoke, Hook and so on.
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