0086 13345207688
info@camelsteel.com
Facebook
Twitter
LinkedIn
YouTube
color steel plate
  • HOME
  • Products
    • Galvanized steel | GI
      • Galvanized Steel Coil
      • Galvanized Steel Sheet
    • Galvalume steel | GL
      • Galvalume Steel Coil
      • Galvalume Sheet
    • Color Coated Steel Coil
      • Prepainted Galvanized steel coil | PPGI
      • Prepainted galvalume steel coil | PPGL
      • Wrinkle color coated galvanized steel coils
      • Printed Prepainted Steel Coil
    • Steel Roofing Sheets
      • GI roofing sheet
      • Galvalume Roofing
      • Colour steel roofing
    • Color Coating Aluminium Coil/ Sheet
      • Roofing maintenance system application
      • Home appliance application
      • Composite panel application
      • Ceiling system application
      • Aluminum gutter application
      • Advertisement application
  • ABOUT US
    • About Us
    • FAQ
    • Meet the Team
  • NEWS
  • CONTACT

High temperature resistance analysis of galvanized sheet

十二月 25, 2020没有评论CAMELSTEEL

High temperature resistance analysis of galvanized sheet

High temperature resistance

High temperature resistance http://www.camelsteel.com

1. Basic introduction

A highly galvanized layer means that the plating layer is very thick, which is for hot-dip galvanizing because electro-galvanizing cannot be too thick.

The thickness of the hot-dip galvanized coating is generally above 20 microns, even up to 100 microns.

The weight of the galvanized layer per square meter usually expressed,

145 grams per square meter, the coating is about 20 microns.

However, it is not easy to control the thickness of hot-dip galvanizing in a relatively thin range.

2. The chemical properties make it resistant to high temperatures

The melting point of zinc is 419.5°C and it is chemically active.

In the air at room temperature, a thin and dense basic zinc carbonate film is formed on the surface to prevent further oxidation.

When the temperature reaches 225°C, zinc violently oxidized, showing white zinc oxide.

After high-temperature grilling, the surface anti-corrosion layer of the galvanized sheet oxidized,

so the galvanized sheet cannot withstand high temperatures, the heated surface will change color,

or other protective materials on the surface will easily turn yellow after oxidation.

3. Putty

The surface of the galvanized sheet should be free of oily or waxy components and other stains or dust, which can improve the adhesion of the putty;

Theoretically, it not recommended making decorative paint or primer on the basis of the surface of a similar galvanized sheet that is too smooth.

If necessary, corrosive treatment (such as hydrochloric acid) can improve the bonding strength with putty and paint;

Putty should correspond to the standard ratio adjustment and the ratio of curing agent.

The excessive proportion will reduce the adhesion and physical properties of putty (such as excessive brittleness and loss of toughness);

Putty should use within the shelf life and applied as thinly as possible to prevent excessive temperature difference between the surface

and the base material galvanized sheet, resulting in inconsistent stress, contraction, and expansion,

and layer shedding resulting in complete separation.

Previous post The difference between aerospace aluminum sheet and ordinary aluminum sheet Next post What are the characteristics of patterned aluminum plate

Related Articles

Colour Galvanized Steel Sheet Bottom Paint

四月 21, 2017CAMELSTEEL

Hot Dipped Galvanized Steel

四月 20, 2017CAMELSTEEL

The common PE coated steel coil

九月 20, 2017CAMELSTEEL

发表评论 取消回复

电子邮件地址不会被公开。 必填项已用*标注

Categories

Quick Menu

  • Home
  • Products
  • News
  • Contact Us
  • FAQ

近期文章

  • Do you know the inspection standards for color-coated steel coils?
  • The color-coated aluminum plate you know
  • Introduction of 6061 Alloy Aluminum
  • Briefly describe the six characteristics of galvanized sheet
  • Application details of color coated board.

近期评论

  • forex发表在《What is coil steel?》
  • online child sell and buy发表在《What is coil steel?》
  • Buy MHRB USA发表在《What is coil steel?》
  • NDKUJT5发表在《What is coil steel?》
  • BANDAR JUDI BOLA TANGKAS发表在《What is coil steel?》

Tags

2017 aluminum coil aluminum coil knowledge aluminum plate aluminum roofing sheet aluminum sheet camelsteel Camelsteel News Characters of zinc aluminized sheet china steel market Cold rolled steel plat Color Aluminum Coils color coated aluminum coil color coated aluminum coils color coated aluminum plate color coated steel coil color steel plate Color steel sheet Fluorocarbon color coated aluminum coil Fluorocarbon color coated steel coil galvalume steel coil galvalume steel sheet galvanized galvanized metal rolls Galvanized sheet galvanized sheet metal Galvanized steel galvanized steel plate galvanized steel coil galvanized steel sheet Industry News metal-colored stone tiles metal roofing sheet Polyester color coated aluminum coil ppgi steel coil prepainted galvalume steel coil prepainted steel coil production problems Raw Material Prices roofing sheet steel coil steel market Types of galvanized sheet zinc-alum zinc aluminized sheet
HomeProductsNewsContact UsFAQ
Zibo Camel Material Co., Ltd © 2016 All rights reserved.