Heavy Duty Square Set Manhole Cover D400

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Algeria 850*850 ductile manhole cover,D400
Heavy duty ductile manhole cover
Export cast iron manhole cover
EN124 D400 cover

850*850 ductile manhole cover,D400,63KG ,100mmHeight
Algeria 850*850 ductile manhole cover,D400
Heavy duty ductile manhole cover
Export cast iron manhole cover
EN124 D400 cover

1 located at material basement
2 strict quality control system
3 high speed delivery time


  • Brand:SUNDA

  • Service:OEM

  • Type: SD850S63/002

  • Material:Ductile Iron /casting manhole cover

  • Frame Size:850*850mm

  • Clear Opening:600mm

  • Height:100mm

  • Weight:63kgs

  • Pressure:D400

  • Class:EN124

  • Parts :one lock , one rubber

  • Packing:pallets with plastic

  • Delivery : 25-30days

  • Payment : T/T OR L/C

  • Export certificate : Original certificate ,Quality certificate.custom invoice as customer's request

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Q:What are the requirements for casting steel castings?
2, the plane should be placed on the following.3, thin parts should be placed below.
Q:Casting pieces of plastic processing requirements can not fall off the skin,
You oily sludge!Is not the general market on the soil?If it isPlease use two groups of chemicals to reinforce the soilOr suggest your company?Do the putty or paint film after doingThat's better
Q:How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness
Hot galvanizingGenerally 0.06 mm or more
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:How much is the amount of electrophoretic paint per square meter used in the casting?
It was a very simple question, and it was complicated by what you said.
Q:Which surface is coarser for cast iron or cast steel castings? Why?
Roughness mainly depends on the surface roughness on the surface of the sand.
Q:The casting sand is going on
2, causes(1) sand mold (core) strength is not high, when the box a little reason will fall off.(2) the strength of sand mould (core) is not high, it can not stand the erosion of molten steel.(3) box sand mould (core) crush.(4) high strength under high temperature, warpage, deformation and protuberance into the cast steel under the action of high temperature molten steel.(5) the floating sand in the air hole of the sand mold falls, especially when the floating sand falls in the casting, and the floating sand on the surface of the sand mold is easy to fall through the air vent.(6) when the box is closed, the surface of the mold cavity and the surface of the sand core are not cleaned, and the sand (core) surface has floating sand and so on.
Q:Casting parts have poor surface finish. What sand is used to make them?
Now resin sand, coated sand and other processes are also very good surface.
Q:When there is no flaw detection for large casting parts, is there any crack inside?
Cracks are considered serious levels of defects and should be repaired
Q:What are the factors affecting the machining process of the casting material and structure?
Medium carbon steel begins, and the casting can not be punched and tapped directlyStainless steel, ordinary grade (Fe based alloy element content, less) can not do heat treatment. But processing small holes or tapping to heat treatment (solution. In practice, the annealing treatment can also be). There are a lot of stainless steel matrix is not to say, for example, nickel, cobalt and tungsten. And so on.

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