Over 3 million domestic automobile production
According to Xinhua News Agency, Beijing, June 8, the China Association of Automobile Manufacturers released statistics on automobile production and sales from January to May this year. According to statistics, in the first five months, China's auto production and sales were 3.053 million and 297.43 million, which was a year-on-year increase of 31.77% and 30.84% ​​respectively, both of which hit historical highs.
Statistics show that from January to May, the top ten companies in sales ranking were: SAIC, FAW, Dongfeng, Chang'an, BAIC, Chery, Hafei, GAC, Geely and JAC.
Welding Neck Flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.
The long tapered hub provides an important reinforcement for use in several applications involving high pressure, sub-zero and / or elevated temperatures. The smooth transition from flange thickness to pipe or fitting wall thickness effected by the taper is extremely beneficial, under conditions of repeated bending, caused by line expansion or other variable forces.
These flanges are bored to match the inside diameter of the mating pipe or fitting so there will be no restriction of product flow. This prevents turbulence at the joint and reduces erosion. They also provide excellent stress distribution through the tapered hub and are easily radiographed for flaw detection.
This flange type will be welded to a pipe or fitting with a single full penetration, V weld (Buttweld).
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