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Elbow 90 ° elbow stamping stamping manufacturer | professional production pipeline Hebei billion gold stamping elbow
Information Name: | Elbow 90 ° elbow stamping stamping manufacturer | professional production pipeline Hebei billion gold stamping elbow |
Published: | 2014-05-30 |
Validity: | 0 |
Specifications: | Limitation |
Quantity: | |
Price Description: | |
Detailed Product Description: | Stamping elbow pipe fittings are used in the corner, in the actual use of applications, often applied 90 ° elbow stamping manufacturers in the construction, machinery, chemicals, electric power, shipbuilding and other industries, according to the angle of the elbow can be divided of 45 °, 90 ° elbow cheap stainless steel stamping, 180 ° in three forms; short radius divided by the radius of supplier quality stamping elbow, long radius; different materials need to bend to select a different process . Stamping elbow common cold extrusion process, stamping and hot push. Since stamping better flexibility and toughness, so common cold stamping elbow extrusion material forming the way, the next good material into a mold blank elbow, after closing the upper and lower mold in hydraulic thrust of stamping Elbow rough movement along the gap to complete the forming mold. Mold process using cold production of stainless steel elbow with a smooth surface, high dimensional accuracy, small error. For the use of cold-formed, after forming into the shape to be a stress relief heat treatment. Visual inspection by piece stamping elbow should be, and should meet the relevant standards, the surface should be smooth without stamping elbow scale, depth on the elbow must not be greater than 5% of the nominal wall thickness, and shall not exceed the maximum depth of 0.8mm folded, rolled off, separation and other defects. Stamping elbow deeper than the surface of the nominal wall thickness of 12% or greater than 1.6mm of mechanical scratches and pits should be removed, for carbon steel and austenitic stainless steel stamping elbow, each lot shall be drawn and not less than 3% 2 do the hardness test, the results are subject to a failure, should redouble inspection, if there is still a failure, should be individually examined. Alloy steel elbow for hardness testing should be carried out piece by piece. Cold steel of the elbow must be done low temperature impact test, test pieces should be selected on the same batch of the base material, and is willing to have the same final heat treatment elbow. Stamping elbow before painting the surface should be thoroughly cleaned elbow until visible metallic color, and the elimination of flash, burrs, oil, etc. and clean; rust paint should be uniform, no bubbles, wrinkles and peeling; according to the different materials are packed, and moisture measures. Repression, also known as stamping elbow elbow elbow or seamless, with high-quality carbon steel, stainless steel and low alloy steel seamless pipe acid in a special mold pressing and forming. Pressing need for normalizing elbow stamping elbow heat treatment, machining port, wall thickness required to leave the burning, machining allowances. Usually the balance of the theoretical thickness of the elbow 10% to 20%. Elbow wall thickness δ and the smaller cross-sectional diameter D ratio, the better the performance and fit the mold, but the elbow arc more likely to wrinkle. According to the plastic deformation of the metal in the constant volume, when pushed into shape constant wall thickness (actually slightly thinner), equal to the length of the outer arc tube elbow-length features, the outer diameter of the tube to push the system to derive the formula: where tube outside diameter Dp ---, R --- bend radius of curvature, δ --- elbow thickness, D --- elbow cross-sectional diameter. Oxygen piping elbow crease strictly prohibited. When using cold-formed steel or hot curved system elbow, bend radius of not less than five times the pipe diameter; suppressed when using seamless or welded carbon steel elbow pipe bending radius shall not be less than the outer diameter of 1.5 times; When using stainless steel or copper-based alloy seamless or pressed elbow, bend radius should not be less than the tube diameter. For not more than 0.1MPa working pressure steel pipe volumes, you can use the bending radius of not less than 1.5 times the pipe diameter welded elbow, elbow wall should be smooth, no sharp edges, burrs and welding tumor. Elbow 90 ° elbow stamping stamping manufacturer | professional production pipeline Hebei million gold stamping elbow provided by Hebei million gold piping. Welcome to consult Hebei billion Gold Pipe Manufacturing Co. (www.yijinguanjian.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Alan Li Tong |
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Copyright © GuangDong ICP No. 10089450, Pipe Manufacturing Co., Ltd. Hebei billion gold All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 22025 visitor
Copyright © GuangDong ICP No. 10089450, Pipe Manufacturing Co., Ltd. Hebei billion gold 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