On July 18, the Ministry of Commerce issued preliminary anti-dumping results for the import of polysilicon from the United States and South Korea, but did not bring much joy to the domestic polysilicon industry. The above-mentioned management said that from the preliminary ruling, the temporary anti-dumping margin rate imposed on each importer, the Korean OCI, which accounts for 30% of the imported polysilicon, is only subject to a tax rate of 2.4%. This anti-dumping force is limited. China has always imported the largest amount of polysilicon from the EU, but the imported polysilicon manufacturers from the EU, especially Germany, are not on the list of anti-dumping targets, and the degree of profit for China's polysilicon producers may be limited.
“Before we expect the Ministry of Commerce to include EU polysilicon manufacturers in the anti-dumping list in August, but after the China-European PV negotiations “shake and talkâ€, anti-dumping against EU polysilicon manufacturers may not appear.†The person said that the future domestic polysilicon industry The first choice is to continue the long process of de-capacity, and the second is to intensify competition in the limited demand market released downstream.
The reporter was informed that the demand for domestic polysilicon market is expected to be around 80,000 tons this year, but the current effective capacity of domestic enterprises exceeds 140,000 tons. Wang Haisheng analyzed that even if the market share of imported polysilicon is not considered, the situation of oversupply of polysilicon in the domestic market will remain in the long term. After the dust of the Sino-European PV trade dispute has been settled, China's polysilicon “double-reverseâ€, which is closely related to it, may be exhausted. In the situation where market supply and demand are still unbalanced, the domestic polysilicon industry may face a new round of "price war."
Industry insiders reminded that in the context of no fundamental changes in overcapacity, the domestic PV industry will be in an accelerated reshuffle and industry adjustment stage for a long period of time. Ren Haoning, a researcher in the energy industry of China Investment Consulting, believes that domestic demand is no longer able to digest China's PV production capacity. In the next 10-20 years, capacity demand will not change much, but the overall production capacity will be reduced, and eventually maintain a relatively balanced state. The future market structure will be that the number of upstream polysilicon enterprises will be greatly reduced, forming 5-6 polysilicon groups, and small and medium-sized enterprises will be eliminated; the middle reaches will form 4-5 battery component groups; and downstream will have a relatively large number of photovoltaic power station construction, design and Operating the company.
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.
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.
Standard Flange,Metal Flange,Alloy Steel Flanges,Steel Flange
Inner Mongolia Overseas.Trade co.,LTD , https://www.flangevalvejoint.com