Current label: Tangshan Fangguan Wholesale
Tangshan Fangguan Wholesale Give you a detailed introduction Tangshan Fangguan Wholesale Product classification of, including Tangshan Fangguan Wholesale The purpose, model, scope, pictures, news and price of all products under. At the same time, we have selected Tangshan Fangguan Wholesale The classified industry information, price quotations, exhibition information, picture materials, etc. have won praise from users nationwide. For more details, please click to visit!
-
Process of seamless rectangular pipe: ① main consumption process of hot rolled seamless rectangular pipe (main inspection process): preparation and inspection of pipe blank → heating of pipe blank → piercing → pipe rolling → reheating of raw pipe → sizing (reducing) → heat treatment → straightening of waste pipe → finishing → inspection (non-destructive, physical and chemical, bench inspection) → warehousing ② cold rolling (drawing) Main consumption process of seamless rectangular tube: blank preparation → pickling
-
And it shall be tied with the vertical pole to tighten the horizontal pole. Structural requirements for square pipes: when the erection height exceeds 40m and there is wind vortex effect, the structural requirements for square pipes shall conform to the following rules: 1. The longitudinal distance and step distance of degree poles of single and double row square pipes shall not be greater than 2.1m, and transverse diagonal braces shall be set. 2. The upper part of the top layer of the portal frame, the setting layer of the wall connecting parts, and the protective shed
-
The influence of temperature and time on the performance of square tube: at the same time, the heating temperature and time will also have a great impact on the performance of square tube. During the operation of circular furnace, the technical regulations should be strictly followed. The influence of temperature and time on the performance of square tube should be checked frequently. The billet of square tube will be burned and decarburized, In order to ensure the stability of piercing performance and chemical properties of square tube billets
-
Square tube is a hollow square thin-walled steel tube, also known as steel cold-formed profile: it is a profile steel with square section dimensions made of Q235 hot-rolled or cold-rolled strip steel or coiled plate as the base material after cold bending and forming, and then high-frequency welding. Hot rolled extra thick wall square tubes are subject to cyclic loading except for wall thickening. Glass curtain walls, automobile chassis, solar power generation supports and many machine parts are subject to cyclic loading
-
Mechanical properties of square tubes 1. Performance index analysis of square tubes - plastic plasticity refers to the ability of metal materials to estimate the specifications and characteristics of efficiency enhancing square tubes under load, and introduce the specifications and characteristics of welded circular tubes and square tubes to produce plastic deformation (permanent deformation) without damage. 2. Performance index analysis of square tube - hardness and hardness are indicators to weigh the hardness and softness of metal materials. at present
-
Classification of seamless square tube: 1. Hardness is the pointer to weigh the soft and hard level of metal materials. At present, the indentation hardness method is commonly used to measure the hardness in consumption. It uses the indenter with corresponding geometric shape to press into the surface of the metal data to be tested under the corresponding load, and measures the hardness value according to the indentation level. Common methods include Brinell hardness (HB) and Rockwell hardness (HRA