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Precision carbon sand casting part
Category :
Machinery on-line->Castings->Other_Castings->Sand Casting
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Product Specification
Model No:
USM-120
Country
CN
Brand
UniSite
Packing
Export cartons, pallets, wooden cases, Polybags or as per client's request
Minimum Order
100
Payment Term
L/C,T/T
Product Detail
<p>
Additionally there are extensions to the gating system called vents that provide the path for the built up gases and the displaced air to vent to the atmosphere. <br />
The cavity is usually made oversize to allow for the metal contraction as it cools down to room temperature. This is achieved by making the pattern oversize. To account for shrinking, the pattern must be made oversize by these factors, on the average. These are linear factors and apply in each direction. These shrinkage allowance are only approximate, because the exact allowance is determined the shape and size of the casting. In addition, different parts of the casting might require a different shrinkage allowance.
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<img src="http://i.bosscdn.com/product/8b/ab/36/f7f2505af6da4b8fc82649d82a.jpg" title="Carbon sand casting parts" alt="Carbon sand casting parts" />
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<strong>Basic process</strong><br />
There are six steps in this process:<br />
1.Place a pattern in sand to create a mold.<br />
2.Incorporate the pattern and sand in a gating system.<br />
3.Remove the pattern.<br />
4.Fill the mold cavity with molten metal.<br />
5.Allow the metal to cool.<br />
6.Break away the sand mold and remove the casting.<br />
<br />
<img src="http://i.bosscdn.com/product/6d/2b/ae/ec833d5a0201a757f22ffaf3db.png" title="sand casting" alt="sand casting" />
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<strong>Pattern</strong><br />
From the design, provided by an engineer or designer, a skilled pattern maker builds a pattern of the object to be produced, using wood, metal, or a plastic such as expanded polystyrene. Sand can be ground, swept or strickled into shape. The metal to be cast will contract during solidification, and this may be non-uniform due to uneven cooling. Therefore, the pattern must be slightly larger than the finished product, a difference known as contraction allowance. Pattern-makers are able to produce suitable patterns using "Contraction rules" (these are sometimes called "shrink allowance rulers" where the ruled markings are deliberately made to a larger spacing according to the percentage of extra length needed). Different scaled rules are used for different metals, because each metal and alloy contracts by an amount distinct from all others. Patterns also have core prints that create registers within the molds into which are placed sand cores. Such cores, sometimes reinforced by wires, are used to create under-cut profiles and cavities which cannot be molded with the cope and drag, such as the interior passages of valves or cooling passages in engine blocks.<br />
Paths for the entrance of metal into the mold cavity constitute the runner system and include the sprue, various feeders which maintain a good metal 'feed', and in-gates which attach the runner system to the casting cavity. Gas and steam generated during casting exit through the permeable sand or via risers, which are added either in the pattern itself, or as separate pieces.
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<p>
<span style="line-height:1.5;"><strong>Photos of our </strong></span><span style="line-height:1.5;"><strong>Precision carbon sand casting part</strong></span>
</p>
<p>
<span style="line-height:1.5;"><strong><img src="http://i.bosscdn.com/product/11/96/c8/0271edefce5807bf290040d8db.jpg" title="Carbon Sand Casting Parts" alt="Carbon Sand Casting Parts" /><img src="http://i.bosscdn.com/product/26/35/93/a438e8b31b5d3ebd9410786656.jpg" title="Precision Carbon Sand Casting Part" alt="Precision Carbon Sand Casting Part" /><img src="http://i.bosscdn.com/product/ac/a2/69/ae17fb64551294bf9f07044395.jpg" title="Sand Casting Carbon price" alt="Sand Casting Carbon price" /><img src="http://i.bosscdn.com/product/7d/b1/6f/270cd21c54197d1aad2e0868b2.jpg" title="Sand Casting Carbon" alt="Sand Casting Carbon" /><br />
</strong></span>
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<p>
<strong>How to contact us?</strong>
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<span style="line-height:24px;font-family:Arial;font-size:16px;color:#FFFFFF;"><span style="line-height:21px;color:#333333;font-family:Arial, Helvetica;">Send your Inquiry Details in the Below, Click</span></span><span style="color:#FFFFFF;"><span style="line-height:21px;color:#333333;font-family:Arial, Helvetica;"> </span></span><span style="color:#FFFFFF;"><span style="line-height:21px;color:#333333;font-family:Arial, Helvetica;font-size:18px;">"<strong>Send</strong>"</span></span><span style="color:#FFFFFF;"><span style="line-height:21px;color:#333333;font-family:Arial, Helvetica;"> </span></span><span style="line-height:24px;font-family:Arial;font-size:16px;color:#FFFFFF;"><span style="line-height:21px;color:#333333;font-family:Arial, Helvetica;">Now!</span></span>
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</p>unisitemachining.com
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