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By Kingwen Liang
What is kitchen cabinet hinge made of？It is often asked by the clients to Kingwen Liang.
Kitchen cabinetdoor Hinge, in the spring hinge industry which Kingwen Liang is engaged in, cold rolled steel Q195 is most used. About the knowledge of the cold rolled steel, please pay attention to the article below
The classification and use of the cold rolled steel and the cold rolled coil
Cold-rolled steel is short for the thin cold-rolled steel which is made from ordinary carbon structural, commonly known as the cold plate. Cold plate is the steel that made up of ordinary carbon structural steel hot-rolled steel belt; the thickness is less than 4mm after further cold rolling. The cold plate has a favorable quality and high precision in size because it is made in the room temperature and would not produce scale, plus with the annealing treatment, the mechanical properties and process performance are better than hot rolled steel, in many fields, especially in home appliance manufacturing areas, has been gradually replace the hot rolled steel.
Applicable grades: Q195 Q215 Q235 Q275 SPCC (Japan brand) ST12 (Germany brand)
1. Q- The code for the ordinary carbon structural point (limit), it is the first word of Chinese phonetic alphabet. 195 215 235 255 275-represent the number the cold-rolled steel can bear (limit), the unit (MPa ). The Q235 is the best in the strength, plasticity, toughness of the ordinary carbon structural, it can meet the demand of daily use, so the application range is very wide.
2. S-for steel. P for plate. C for cold-rolled. And the fourth-regular grade C for common.
3. ST for Steel and the number 12 stand for the ordinary cold-rolled steel.
Mark: size precision-dimensions-plate breed standard
Cold-rolled steel: Steel-technical condition standard
Mark example: B-0.57501500-GB708-88, Steel, Q/BQB402 Standard, grade (SPCC), annealing heat treatment state plus level(S), table textured D, with central processing status to surface quality level for FB trimming steel; the thickness is 0.5mm, B precision of width 1000mm. a level precision ,length is 2000mm, A level precision ,roughness of PF precision. A, is marked as: steel ECQ/BQB 402-(SPCC)-SD-FB/(A2000A-PF.0.51000A)
Cold-rolled steel: Q225-GB912-89
The main origin: Bao steel, steel, Ben steel, Wu steel, Han steel, Bao steel, Tang steel, Lian steel, Ji steel and so on.
Ordinary cold-rolled steel: This is made up of ordinary carbon structural or low alloy structural. It has a good surface quality and a perfect punching property. It requires passing the cold bending test, which is common used in the automotive industry.
High quality cold-rolled steel: mainly include all kinds of high quality cold-rolled steel; the most commonly used is the carbon structural, especially for deep drawing, which is composed of low carbon cold-rolled steel. According to the surface quality, divided it into three parts: I II III, respectively the special senior, senior and high rough surface, according to the drawing, can be divided into ZF, HF and F, due to the toughness of the steel, can deeply divided into A and B, is widely used in the automobile tractor industry.
Cold-rolled steel: with smoothly surface, excellent in processing, commonly used in the automobile refrigerator washing machine and other home appliance, it is also used in the industrial equipment and all kinds of building material. With the development of economy, the cold-rolled steel is called as the material of modern society.
The classification of cold-rolled product: hot rolled pickling, rolling hard, ordinary cold-rolled, galvanized (galvanized fingerprint resistant, hot dip galvanized), zinc, tin plate, coating, electrical steel (silicon steel ) and so on.
soft close hinge 、two way clip on hinge , two way clip on hinge , normal hinge、Hysraulic hinge、push open hinge、and so on.