chimney screen mesh

6, passivation to remove hydrogen parts should be passivation after the removal of hydrogen, passivation before the application of 1%H2SO4 or 1% hydrochloric acid activation 5~15s. Passivation shall be treated with colored chromate unless otherwise specified in the design drawings.

Corrosion usually metal corrosion has three types: physical, chemical corrosion and electrochemical corrosion, and corrosion depends on the chemistry of the metal itself and the organizational structure, still have relationship with the surrounding medium, such as wet environment than dry environment is easy to rust, more less than the impurities of impurities is easy corrosion, high temperature conditions than under the condition of low temperature corrosion, etc. After knowing these, we can effectively prevent the corrosion of the dip plastic six side wire mesh, prolong the service life of the product.

Hot dip galvanizing, also known as hot dip galvanizing, is a method of obtaining a metal covering by immersing a steel member in a molten zinc solution. With the rapid development of high-voltage transmission, transportation and communication, the protection requirements for steel parts are becoming higher and higher, and the demand for hot-dip galvanizing is also increasing. Usually the thickness of electric galvanized layer is 5 ~ 15μm, and the large roll galvanized wire layer is generally more than 35μm, even up to 200μm. Hot dip galvanizing has good covering ability, dense coating and no organic inclusions.

Of course, the quality of any kind of product is also affected by the implementation of the specification of the manufacturer, if it is the welding screen manufacturers in the production of their own is not very high implementation of the specification, or in the production line of the procedure specification has declined, or there is no higher requirements on the production link.