Outdoor Aluminum Alloy Grating Manhole Cover/Srain Trench Cover

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Loading Port:
Qingdao
Payment Terms:
TT OR LC
Min Order Qty:
5000 pc
Supply Capability:
6000000 pc/month

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Product Description:

1.Description of Drainage trench cover:

Drainage trench cover is widely used in the urban road, the square, the botanical garden, the wharf, the airport, the parking lot, the road, each kind of industry, the civil project, etc.

 

2.Main features of Drainage trench cover:

 I--Carrying 20 tons of weight

II—Carrying 14 tons of weight

III---carrying 6 tons of weight

IV---carrying 2 tons of weight

V---Carrying pedestrian weight

 

3.Glass Wool Blanket Images:

 Outdoor Aluminum Alloy Grating Manhole Cover/Srain Trench Cover

 

4. Drainage Trench Cover Technical Parameters:

 

These drain cover plate applies to the road cross-sectional and longitudinal drain. The drains width ranging from 200mm to 550mm.

A means the steel grating length

H means the steel grating height

A means the frame length

H means the frame height

 

5.FAQ

We have organized several common questions for our clientsmay help you sincerely 

How about your company

A world class manufacturer & supplier of Drainage trench cover is 

one of the large scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirement.

How to guarantee the quality of the products

We have established the international advanced quality management system every link from raw material to final product we have strict quality test; We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

 


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Q:how to produce aluminium sheet circle?
As for the process, you can use punch.. as for professional machines, for example, stationary press in open type, mechanical press/ single-point press. The material you say is neither big nor small, blanking…(cutting them into sheet circle you want) you can add an uncoiling if it’s coil stock: open-type inclinable press, four-point press,ect. It’s not certainly accurate) punch, oil press, double , four-column hydraulic (oil) press,etc. it needs about 315T,(estimated value, closed type single, blank material cutting (cutting into square ) 2, it contains sheet metal forming technology, crank press: 1: straight side two : 1, but the components you said is simple, only two steps.
Q:How to clean the aluminium oxide on the surface of aluminum? What kind of materials should we use to clean the thin aluminum sheet, and what's the concentration?
you can answer sodium hydroxide solution, dilute acid is useless, aluminum's oxide film is very thick,as for concentration, aluminum will be passivating in concentrated sulfuric acid. if you are high school student,higher concentration is better, you can complete deoxidation by abrasive paper.
Q:How to solve the loose bonding of aluminum sheet and silica gel?
you can use YH-840 to bond silica gel and aluminum sheet in small area, and it’s hard to tear and will have an effect of destruction and melting, transparent and environmental.
Q:why could aluminum pot be repaired by knocking the aluminum sheet into the pot but not being bonded by glue?
the oxidation rate of aluminum's surface is very quick, so we cann't use the method of tin welding, and the cost of argon arc welding is very high,so aluminum pot's repair usually uses riveting. aluminum has low hardness and good ductility, so it can be repaired by tightly knocking, without the bonding of glue. general glue will decomposed in open fire, if we bond pot by glue, the pot after repair won't be able to endure high temperature.
Q:How to clean the engine oil and kerosene on the surface of aluminum sheet?
it will disappear after rubbing with petrol.
Q:is there aluminum oxide on the surface of aluminum sheet after being polished by abrasive paper?
aluminum will be oxided as aluminum oxide once being exposed in air.
Q:whst should I notice while welding aluminum sheet and aluminum block?
two types of aluminum reach melting points, aluminum block must be preheated when you weld them with small current, you will know how to do it. You can use argon-arc welding back and forth, preheat it with small current.
Q:what's the temperature tolerance of aluminum sheets?
aluminum is a kind of silver white metal,melting point:660.4℃, boiling point: 2467℃,density: 2.70 g/cm³,very light, about 1/4 of iron's density.it has low hardness and good ductility, which makes it suitable for being pulled into threadlets or pressed into aluminum foils, and the later is usually used for packaging candy and cigarette. it has good electrical and temperature conductivity. it's used for the manufacture of electric wire and cable in electric power industry, and for the manufacture of cooker in daily life.combined with the magnesium , copper,zinc,tin,manganese,chromium,zirconium,silicon and other elments,it can formulate various alloys that is broadly used for the manufacture of airplane,car,ship, materials of daily living equipment and the doors and windows of construction industry.aluminum is one of the best reflectors of heat and light, so it is used as thermal insulation material and the manufacture of reflecting mirror in the reflecting telescope.
Q:Who knows the ceiling size of aluminum hang-parcel?
General size of aluminum hang-parcel: 100mm、150mm、200mm、250mm, you can order the length according to your actual demands. General color of aluminum hang-parcel: white, black, blue, pearl white, bianco canopus, etc. you can order the color according to your actual demands. General thickness of aluminum hang-parcel: 0.4mm、0.5、0.6、0.7、0.8mm, you can order the thickness according to your actual demands.
Q:what's the difference between zinc sheet and aluminum sheet?
Only zinc sheet can react, zinc is amphoteric.

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