Seamless Steel Pipe is made from a solid round steel `billet` which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. The seamless pipe is then finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 32 inch OD. Carbon Steel Seamless Pipes / Tubes Carbon steel is an alloy consisting of iron and carbon. The percentage of carbon in the steel affects the hardness, strength of elasticity and ductility of carbon steel. Seamless Carbon Steel Pipe or solid steel ingot is made of the capillary tube through the hole, then through the hot-rolled, cold rolled or cold call is made. Seamless carbon steel pipe in China's steel industry has an important position. Seamless carbon steel pipe material is a round tube, pipe cutting machine embryos to go through cutting about 1 m of length blank, and sent by conveyor belt furnace heating. Billet is fed into the heating furnace, the temperature is about 1200 degrees Celsius. Fuel is hydrogen or acetylene. Furnace temperature control is the key issue. Round tube came out to punch through the machine through air pressure. Generally more common punch is tapered roll perforation machine, the punch high production efficiency, product quality, large diameter hole expansion, can wear a variety of steel. Perforation, round tube has been on three-roll cross rolling, rolling or extrusion. Squeezed off the tube after sizing. Sizing by high-speed rotary cone drill holes into the billet to form a tube. Pipe diameter by the sizing mill to determine the length of the drill diameter. After the pipe through the sizing into the cooling tower, cooling by water spray, steel after cooling, should be straightening. After the steel belt sent by straightening metal testing machine (or pressure test) for internal testing. If the pipe internal cracks, bubbles and other problems will be detected. After the pipe but also through strict quality control manual selection. Steel quality, the use of spray paint numbers, specifications, production lot number. By a crane into the warehouse.
Seamless Steel Pipe, Seamless Pipe, Steel Tube Shandong Guanzhou Iron and Steel Group Co., Ltd , https://www.shansteelsupply.com
The LED industry is like a gorgeous LED light show, with attractive appeal, but the huge competitive situation has also caused the industry to suffer. How to get rid of the fierce price war vortex and kill a bloody road in the Red Sea market, it will take time. Quenching. LED lighting demand has entered a high growth and development. It is estimated that after the shipment of LED lighting has doubled in 2014, the overall shipment volume in 2015 is expected to continue to double again. However, due to fierce market price competition, the LED industry believes that LED lighting production estimates, in 2015, the growth rate of about 30%, in other words, the product price fell about 35. Observing the development of LED in recent years, the industry is changing fast, and often the industry itself is difficult to master. It is vaguely remembered that the industry has only shouted a beautiful vision of a decade without an industry, a golden period of three years, and so on. In the cold winter, the dark period, and even the miserable business, the orders often come and come. In the face of unpredictable market conditions, the Korean factory Samsung has gradually faded out, and mainland China has strong funds to support it and continue to expand production. Taiwan is like a squeezed sandwich with patent pot lids from Japanese factories and European and American manufacturers. There are low-cost grabs from the mainland, how to break through the Taiwanese factories, mergers and acquisitions, alliances, and transformations. It takes a while to work harder. The Asian LED factory has the most resources in Japan, and Nichia and Toyota Synthetic (TG) have patents and technical energy, and have a high market share in Japan, Europe and high-end applications. However, the Japanese factory also has problems, such as the Japanese grain market, which is not focused on patents, unless the customer specifically specifies. In addition, the advantages of the Japanese factory in the high-end market have begun to change. The LED backlight die used by the Apple iPhone used to be the only one in Japan. This year, iPhone6 ​​passed three manufacturers, and Taiwan’s Jingdian was once named. According to industry sources, this is in line with Apple's decentralized supplier strategy, and it also reflects the challenges faced by the Japanese factory. The change in form has also created an increasing space for cooperation between Taiwan and Japan. According to research firm LEDinside, the global lighting market will reach US$82.1 billion in 2015, of which the LED lighting market will reach US$25.7 billion and the market penetration rate will reach 31. Among them, Europe is still the largest region with 23 markets, followed by Mainland China has a share of 21, while the US market has a market share of 19, which is the world's top three LED lighting regional markets. Although the European region has not seen large-scale subsidy policies, its high electricity prices and differences in light culture have led to an increase in demand for LEDs in the commercial lighting and outdoor architectural lighting markets. As a global lighting product manufacturing center, coupled with cost advantages and a complete supply chain, the market competition is more intense than other markets, regardless of brand manufacturers, OEMs, or emerging lighting manufacturers and packaging manufacturers, in addition to significantly improving LED lighting penetration. The ratio, the development of the sales channel is also the main development project in the future. In recent years, the fierce price war has made LED manufacturers expand their production capacity and output rapidly, but the output value has not seen a significant increase. It can only maintain a stable performance. The profit performance is fluctuating with the supply and demand of the industry. Out of the market, the industry can only follow the bargaining price to expand the market share.