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| No.13621967

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Information Name: | Bronze castings, Chen Hua machinery |
Published: | 2015-04-27 |
Validity: | 0 |
Specifications: | Limited |
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Detailed Product Description: | Casting metal forming theory often called liquid molding casting, casting forming technology has a long history. As early as 5000 years ago, our ancestors will be able to cast copper and bronze. Casting is the most widely used metal liquid molding processes. It is the liquid metal is poured into the mold cavity, wait until the cooling and solidification, to obtain a certain shape or parts of the method blank. Casting very versatile, has been applied to the metal and the whole machinery and electronics industries, and its use is a growing trend. Specific use, construction, hardware, device 304 castings, engineering machinery and other large machinery, machine tools iron castings, shipbuilding, aerospace, automotive, motorcycle, electronic sell castings, computer, electrical casting, lighting and other industries, many of which are full of ordinary people day contact, but do not understand metal objects. Including the appearance of quality, intrinsic quality and quality in use. Quality refers to the appearance of the casting surface roughness, surface defects, size deviation, shape bias, weight deviation; mainly refers to the intrinsic quality of the casting of the chemical composition, physical properties, mechanical properties, microstructure and the presence in the cast of the interior holes, cracks, inclusions, segregation, etc; refers to the use of quality castings endurance work under different conditions, including wear, corrosion, spalling, fatigue, shock-absorbing properties and machinability, weldability and other process performance. Sand casting casting defects are: cold shut, pouring enough holes, sticky sand, gravel, blisters, swelling sand. Vent gas is not timely escape before the liquid metal crust, generating holes in the casting defect classes. Pore ??wall smooth, bright colors or with a slight oxidation. After casting porosity, will reduce its effective bearing area, and around the vent will cause stress concentration decreases casting impact resistance and fatigue resistance. Stomatal density also reduces the casting, resulting in some of the requirements to withstand hydrostatic testing of castings scrapped. Further, the pores have an adverse effect on the corrosion resistance of castings and heat resistance. Bronze castings, Chen Hua machinery provided by China Machinery Co., Ltd. Qingdao Chen. Qingdao Hua Chen Machinery Co., Ltd. (www.qdchenhua.com) strong, credible, in Qingdao, Shandong CNC machine tool industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chen Hua machinery and you hand into the brilliant, for a better future! |
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Copyright © GuangDong ICP No. 10089450, Qingdao Hua Chen Machinery Co., Ltd. All rights reserved.
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You are the 28876 visitor
Copyright © GuangDong ICP No. 10089450, Qingdao Hua Chen Machinery Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility