manhole cover, sanitary sewer manhole cover, cast iron manhole cover
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specifications
1.manhole cover
2.15 years casting experience
3.Capacity:12000 Tons
4.QA and QC each batch
D400 E600 cast iron manhole cover
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>>Manufacturing process
1.Sample or Drawing by customer 2.Tooling proposal&Discussion 3.3D Tooling Design 4.Tooling production 5.Rough parts manufacturer 6.CNC Machining 7.Fitting&Finish 8.Tooling Measurement&Check 9.Assembly 10.Trial Production 11.Correction 12.Final Trial 13.Samples Inspection 14.Sample Approval by customer 15.Tooling Approval 16.D400 E600 cast iron manhole cover |
>>Our Features
1.Materials:Gray iron, ductile iron, malleable iron, carbon steel,Alloy steel, stainless steel, aluminum, bronze, brass,etc. 2.Standard:JIS, DIN, ASTM, BS,GOST 3.Processes:Sand Casting, Investment Casting,Precision Casting,Forging,Stamping ,CNC Machining. 4.Surface treatment :Electro Zinc Plating Hot deep zinc plating,Electrophoresis,Powder coating,Painting ,Shoot blasting etc. 5.Heat treatment :Induction furnace for raw material heating.Heat treatment of continuous quench+temper+carburization available. 6.Machining:CNC machining centers for further machining process. |
- Q:Why do casting parts have air holes?
- First, from the source, tools, raw material drying, in the process of melting into the reaction gas, another influence is pouring process, such as high temperature solidification gas dissolved too much after not excluded. The method can adjust the pouring temperature properly, control the source of gas (drying and controlling the inoculant, especially the content of magnesium), and add cooling iron to change the solidification mode. It depends on what kind of casting you are. You can't make it clear at once. And molding sand relationship is mainly water content and permeability, brush coating resin content.
- Q:How do casting parts remove stress?
- Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment
- Q:What is the difference between forging parts and casting parts?
- Forging is in hot state through the metal hammer or press equipment produced by forging parts. A casting is a metal that is liquid and is poured into a cavity of a specified shape and cooled and solidified. It is the forging metal soft pinch molding, and casting the metal into thin cooling solidification.Forged parts are costly and have long production cycles.
- Q:For example, casting parts contain many holes, inclusions and other defects, the size and the number of holes exceed which limit is not qualified
- For example, the castings shall be in accordance with the requirements of the second types of castings in the technical requirements for aluminum alloy castings of GB/T9438-1999;
- Q:What are the casting parts used to test shrinkage holes?
- 1. anatomy. It is easy to slack off by sawing and machining.
- Q:Domestic large steel castings factory which is better, recommend!
- At least spend money on research and development, then the quality should be all right.
- Q:What are the effects of stiffeners on castings, or on welded parts (for 2 tons or less), casting or weldments on stiffeners?
- 3, weight: if reinforcement in products, casting weight is generally greater than the welding parts (the internal organizational structure and mode of production determines the mechanical properties of materials, so it determines the weight of the product), considering the cost of transportation, certain priority structure.
- Q:The difference between sheet metal and casting parts
- Sheet metal refers to the metal sheet (which can be bent straight board, etc.) generally uniform thickness, can obtain the required parts by stamping, molding, welding, splicing and other processing methods.
- Q:How to distinguish the forging parts and casting parts accurately
- Distinguish from performance:The processing performance of forged parts is higher than that of the same material. The forging parts are compact and have good mechanical properties, but the casting parts may have sand holes, holes, shrinkage holes and other defects, and their mechanical properties are inferior to those of forgings. At the same time, forging processing can ensure the continuity of the metal fibrous tissue, fibrous tissue to forging and forging shape consistency, metal streamline integrity, can ensure the parts with mechanical properties and long service life good.
- Q:There is a little trace of polishingShock polishing is even worseElectrolysis can not be uneven, there is a slight bump
- German winter three step mirror polishing 2013 new processYou can free proofing!
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manhole cover, sanitary sewer manhole cover, cast iron manhole cover
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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