structure
Casting elbow appearance
As the appearance of the welding elbow, then we say that the appearance of the casting elbow bar. Casting elbow appearance are fixed, of course, the general casting elbow appearance is according to different steel tube and to choose the different knowledge of casting elbow, so, in order to ensure the casting elbow appearance, usually Steel Pipe in the future, if not been yard rain washing off, then welding elbow after high temperature push general weld appearance of the elbow is appear out of the blue, of course, if the rain washed, we in high temperature after heating, heating welding elbow surface color are red. But overall, we guarantee tube is washed by the rain is very difficult, because is yard in summer is rain fog water washed, then push the system out of the welded elbow surface is red, too.
Photo of our Casting Bend:
technical requirement
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Although the United States is still the world's number one consumer of petroleum products, China and India, each with a population of over one billion, are the fastest growing oil demand markets. In recent years, large oil companies such as BP have signed a series of oil refinery joint ventures and cooperation agreements with Chinese and Indian state-owned and private energy companies, striving to enter these two fast-growing markets.
At present, BP is actively exploring ways to expand access to the Chinese market, and hopes to carry out further cooperation with Sinopec. According to the cooperation proposal put forward by BP, it will supply crude oil to Sinopec's large-scale oil refining business and use it to obtain more business in the Chinese oil products market. BP and Sinopec have a series of cooperation projects, including chemical business and a petrol retail joint venture. In the initial public offering of Sinopec in 2001, BP was one of the first investors, but in February 2004, BP sold 2.1% of its shares.
According to informed sources, BP has issued bid invitations to major international banks to provide advice on the cooperation between BP and Chinese companies. The cooperation may be related to the joint bidding of BP and Sinopec to bid for energy assets in the Americas outside the United States.
In addition, BP also signed an agreement with India's state-owned Hindustan Oil Company last week to set up a refinery joint venture. The two companies are preparing to build a planned $3 billion refinery in Punjab, India, with a designed capacity of 180,000 barrels per day, which is expected to be completed in 2009. Both parties will also cooperate in marketing, including setting up a gas station service network in India.
Geometric dimensions include outside diameter, inside diameter and wall thickness. Also requires control
Bend in production
Radius of curvature. For example, the radius length is 1.5D, and the radius of curvature must be within the range of tolerances required. Due to these fittings, most used for casting, in order to improve the welding quality, end vehicles into the groove, leave a certain angle, side band, this requirement is quite strict, edge thick, at an angle of number and range of deviation provisions, geometric size than pipe much many. The surface quality and mechanical properties are basically the same as that of the tube. In order to facilitate welding steel, and the connecting pipe are the same. Fourth, is all the pipe fittings should be through the surface treatment, the inner and outer surface of the oxide scale through shot blasting, and then coated with anticorrosive paint. This is not only for export needs, in addition, in the country is to facilitate the transport to prevent rust oxidation, to do this work. Fifth is the packaging requirements, for small pipes, such as export, you need to do wooden, about 1 cubic meter, this provision in the case the number of elbows about not more than a ton, the standard allows the suit, large sets of small, but the total weight usually do not more than 1 ton. For large to a single package, like 24 "must be a single package. The other is labeled packaging, labeling is to indicate size, number, batch number, manufacturer trademark. In the pipe to be stamped on stamp, and attached to the packing list and the quality book file.
The goal is to target two of the world’s fastest growing markets, BP, to expand into the Chinese and Indian market channels
BP is stepping up its efforts to seize the beachhead in the world’s two fastest-growing oil markets, China and India. The company signed an agreement for the establishment of a refinery joint venture in India last week and is actively seeking opportunities to expand cooperation with Chinese energy companies.