1. Common carbon structural steel: carbon structural steel is divided into 5 grades according to the yield strength of steel: Q195, Q215, Q235, Q255, Q275. Each brand is divided into A, B, C and D grades due to its different quality. Q195, Q215, Q235 good plasticity, can be rolled into steel plate, steel bar, steel pipe, etc. Q255, Q275 can be rolled into steel, steel, etc. Carbon Steel Coil,Low Carbon Steel Coil,Hot Rolled Coil,Ss Coil Shandong Panhua Metal Material Co. LTD , https://www.panhuametal.com
2. High quality carbon structural steel: steel number is expressed by the average mass thousandth fraction of carbon element content. Such as 20#, 45#, etc. Application: Mainly used for manufacturing various machine parts.
3. Carbon tool steel: steel grade is expressed by the average mass thousandth fraction of carbon element content, and preceded by T. Such as T9, T12, etc. Purpose: Mainly used for manufacturing various cutting tools, molds, measuring tools, etc.
4. Cast steel: Cast steel number is preceded by ZG. Purpose: Mainly used for manufacturing parts with complex shape and need certain strength, plasticity and toughness, such as gears, couplings, ect.
In thunderstorms, lightning phenomena can easily bring security risks to enterprises. Especially for some high-rise households, it is necessary to install lightning arresters. Large-scale enterprise units also need to conduct lightning protection tests regularly to avoid major accidents caused by lightning accidents. Loss and casualties, then what is the significance of installing lightning protection and lightning protection detection?
First, reduce secondary disasters
Lightning phenomenon is a common natural phenomenon in nature. Simple lightning does not affect people's life production. However, if lightning contacts with buildings or other important structures, it may cause lightning accidents, in addition to directly causing economic losses. It will cause a series of secondary disasters. High-quality lightning protection detection and installation of lightning arresters will prevent secondary disasters.
Second, eliminate or greatly reduce security risks
The lightning protection detection process is extremely accurate in the lightning protection detection process and the later measurement. The perfect lightning protection detection mechanism is an important tool for ensuring the safety of enterprises and large buildings, which can eliminate or greatly reduce the safety hazard, so it is also lightning protection. One of the important links in disaster reduction work.
Third, form a social mechanism to promote industry development
At present, enterprises and institutions have gradually improved their awareness of lightning protection detection. As an important part of lightning protection and disaster reduction, lightning protection and lightning protection can promote the development of the entire industry. By strengthening the maintenance of lightning protection devices and improving lightning protection. The concept of detection is of great benefit to the elimination of lightning.
In addition, from a public safety standpoint to conduct mine periodic testing or install lightning protection devices for building safety, the safety of life and property has a fundamental significance, can effectively avoid hair disasters lightning surge protector students.
February 06, 2024