看美女的每个部位软件,在马背…上被进入了

Consulting Tel: 17783829788 023-62593616

重庆不锈钢井盖

categories of news

Product Categories

contact us

Company Name: Chongqing Banan Fengyi Stainless Steel Products Co., Ltd.

Contact: Mr. You

Phone: 023-62593616

Mobile: 17783829788

www.frbxgzp.com Website: www.frbxgzp.com

Fax: 023-62593616

Address: No. 118, Dagou Group, Shajing Village, Huimin, Banan District, Chongqing City


Manhole covers of various materials have their own advantages and disadvantages

Your current location : Home >> News >> Industry News

Manhole covers of various materials have their own advantages and disadvantages

作者: Release Date: 2019-12-19 Author: Click:

With the rapid development of China's economy, China's infrastructure construction and investment have ushered in a new cycle. Manhole covers are in great demand in urban planning and road construction. The data used in manhole covers are mostly reinforced concrete raw materials, which are cast due to defects such as large brittleness, simple aging, and easy fracture, and have been replaced by materials such as cast iron and stainless steel.

With the continuous and rapid development of China's economy, manhole covers have been used more and more widely in urban planning and road construction. This indicates the bulging of a new type of stainless steel manhole cover anti-theft door industry. The stainless steel manhole cover can be used in various conditions instead of the cast iron manhole cover . The stainless steel manhole cover has further improved functions and increased promotion. Its spring has now come.

1. Cast iron manhole covers are available in gray cast iron and ductile iron:

① Gray cast iron manhole cover: It has certain carrying capacity, and is cheap, brittle, easy to rust, and easy to be stolen. Stainless steel manhole covers are mainly used in some non-load bearing areas and residential quarters.

② Ductile iron manhole cover: Compared with the gray cast iron manhole cover, the bearing capacity can be improved, and the toughness of the material is relatively difficult to rust. However, the price has increased significantly. Similarly, because of its recovery value, it is easy to be stolen, and it is mainly used on roads and roadsides with loads. In order to deal with the anti-theft problem, many anti-theft manhole covers with locks have been developed. Although the anti-theft problem has been dealt with to this extent, it has made it difficult to open the manhole cover and the cost has further increased, bringing economic and operational benefits to users Difficulties.

2. Cement manhole cover Cement manhole cover is filled with high grade cement in steel frame or mixed with steel hoop or steel fiber in cement, which has strong rigidity, brittleness, resistance to acid and alkali corrosion, easy ageing and easy fracture. Stone manhole covers made of some ore, terrazzo, etc. can only be used in limited localities because of product raw materials.

3. FRP manhole cover FRP manhole cover has been taken seriously because it has no recovery value, it can handle the anti-theft problem very well, and stainless steel manhole cover has good load ability. However, the high cost of FRP manhole covers can only make malls less competitive. In addition, the FRP manhole cover is flexible, and the bearing capacity is inferior to that of the cast iron manhole cover. If the self-weight is not good, it may cause the car to rebound and roll over. Therefore, the amount and scope of use of FRP manhole covers are small.

4. Stainless steel manhole cover While stainless steel manhole cover does not add any auxiliary raw materials, stainless steel manhole cover directly smelts pig iron into molten iron and then pours it into a manhole cover. However, nodular cast iron manhole covers are made by adding nodulizing agent, rare earth magnesium and other metal alloys.

URL of this article: http://houseanxiety.com/news/593.html

Keywords: Chongqing manhole cover , Chongqing manhole cover manufacturer

Recently Viewed:

    Fengyi stainless steel products

     重庆井盖

    Scan and follow us

    contact us
    Contact us

    Phone: 17783829788 023-62593616

    Address: No. 118 Dagou Group, Shajing Village, Huimin, Banan District, Chongqing City

    Website: houseanxiety.com

    Copyright © http://houseanxiety.com Chongqing Banan

    District Fengyi Stainless Steel Products Co., Ltd.

    Mainly engaged in Chongqing manhole cover, Chongqing stainless steel manhole cover, Chongqing composite manhole cover manufacturers welcome to inquire!

    No. 50011302001039 of Chongqing Public Network

  • online service
  • contact number
    17783829788
  • Leave message
  • Online consultation
  • Online consultation
  • Welcome to leave us a message
    Please enter your message here, we will contact you as soon as possible.
    Name
    Contact person
    phone
    Landline / mobile number
    mailbox
    mailbox
    address
    address