Flange is an essential part of pipeline connection, according to the standard is divided into JIS BS DIN ANSI Italian standard. Flange standard is widely used, 10kgs and 16kgs, pressure carbon steel flange, is the most conventional, the most popular, and Commonly used flanges. Standard Flange,Metal Flange,Alloy Steel Flanges,Steel Flange Inner Mongolia Overseas.Trade co.,LTD , https://www.flangevalvejoint.com
The two children sang advertisements with children's songs: "I am afraid that my family has no money, and I am afraid that my family does not have good furniture." The childish voices of children are very strong and it is difficult to hear them. Is it right? Tell everyone that money is really worthless, that money does not necessarily have good furniture; good furniture does not necessarily place furniture. Naked show off, silkworms are listening in the ears, pain in my heart. What is the situation of children's furniture now?
At present, about 90% of children's furniture is made of particleboard, medium density board and other plates. Only a small amount of children's furniture is made from glulam and other glulam materials. Therefore, the harmful gas content of children's rooms is often excessive. Was reported. Then when you buy your child's furniture, you must keep your heart. First of all, we must carefully check whether the furniture inspection report is a simple sheet inspection, as well as paint inspection. It is best to choose furniture with less binder, and the formaldehyde content is relatively low. The environmental protection levels from low to high are: medium density board, particle board, large core board, plywood, laminated timber, glulam, solid wood. Also, do not choose furniture that is too brightly colored. The more colorful, the more toxic, because most of the brightly coloured furniture contains heavy metals such as lead. So be very careful.
Fresh and elegant environmental protection furniture can give children a healthy living environment. Furniture should consider environmental protection materials, minimize hard installation, in addition to the main material to environmental protection, auxiliary materials, glue, caulking agent, etc. must use good quality, or some of the formaldehyde in the furniture material may volatilize for 10 years , think about how much harm it is.
The biggest use of flanges is as a way to connect pipes, Valves, pumps and other equipment to form a piping system. It facilitates the cleaning, inspection and maintenance of pipes. Reduced engineering costs.
Weld the flange and the pipeline evenly, and then fasten the connection with bolts to effectively connect the pipeline, valve, pump and other equipment accessories, so that the whole pipeline is integrated and starts to work normally.
It is the most widely used pipe fittings in the piping system and equipment of machinery, petroleum, chemical industry, water conservancy, electric power, shipbuilding, air conditioning and other departments.
Type of flange:
According to the shape can be divided into: FF flange, RF flange, BLIND flange, SLIP-ON flange, Welding NecK
Flange, Threaded Flange, SocketWeld Flange.
According to the pressure can be divided into: PN16. PN10. PN25, PN40, PN60, PN100,
According to the process, it can be divided into: forged flange, cast flange, steel plate flange
According to the material can be divided into: carbon steel flange, stainless steel flange, alloy steel flange
Flange production process:
1) a: Forged flange
Saw billets of different specifications and models into flange blanks, add them to a reverberatory furnace and heat to 1000 degrees to take out, and then forge the flange blanks into ring flanges by forging machines such as forging presses and air hammers, b: steel plate flanges
Put the steel plate into the punching machine, put it into the corresponding mold, and directly punch it into a ring flange blank.
c: cast flange
Put the low carbon steel standard scrap into the intermediate frequency furnace and heat it to 1200-1500, pour it into the mold
The type is a ring flange blank.
2) The formed ring flange blank is processed into a ring flange on a CNC machine tool according to the drawing, and then the flange is drilled with a CNC drilling machine according to the drawing requirements, and the finished product is completed.
3) For the finished flange product, the thickness, hole diameter, center distance, inner and outer diameter of the flange shall be inspected according to the drawing requirements.
4) Type the flanges that have passed the inspection on the end face of the flange according to the customer's requirements, and do anti-rust treatment to the flange according to the customer's requirements, 1: paint, 2: anti-rust oil, 3: galvanized, and then install it. In wooden box for shipment.
Children's furniture is in a grim situation