Q235C Q235C channel wholesale channel spot price Q235C Q235C channel channel channel manufacturer specifications Q235C Q235C Q235C channel uses channel prices - [Liaocheng Shun Metallurgical Products Co., Ltd.] - specializes Q235C channel specifications - [Liaocheng Shun metallurgy metal products Co., Ltd.] - Description Q235C channel density - [Liaocheng Shun Metallurgical Products Co., Ltd.] - Description Q235C channel theoretical weight - [Liaocheng Shun Metallurgical Products Co., Ltd.] - Description Q235C channel manufacturer - [ Liaocheng Shun Metallurgical Products Co., Ltd.] - to provide you with a cross-section of the groove-shaped channel steel bar. Sectional shape of the trough-shaped beam. Channel belongs to the construction and machinery used carbon steel, section steel steel complex, a groove-shaped cross-sectional configuration. Channel mainly used for building structure, curtain wall engineering, machinery manufacturing, and other equipment and vehicles. In use, it is required to have good welding, riveting performance and mechanical properties. Channel steel billet produced raw materials for the carbon content of no more than 0.25% carbon steel or low alloy steel billets. Finished channel after hot forming, normalizing or hot-rolled delivery. Its specifications to waist high (h) * leg width (b) * waist thick (d) the number of millimeters expressed as 100 * 48 * 5.3, indicating that the high waist of 100 mm, leg width of 48 mm, thick waist 5.3 mm slot steel, also known as 10 # channel. Waist high the same channel, if several different legs wide and thick waist also need to model the right plus abc be different, such as 25 # a 25 # b 25 # c, etc. Common channel and sub channel light channel. Hot-rolled channel steel specifications 5-40 #. After the agreement between the supply of hot alternative channel specifications 6.5-30 #. Channel mainly used for building structure, vehicle manufacturing, construction and other industrial cabinets and other fixed disk, channels and beam often used in conjunction. Channel according to the shape can be divided into four kinds: cold-formed channel equilateral, scalene cold-formed channel steel, cold-formed internal crimping channel, cold-formed steel outer edge of the channel in accordance with the theory, it should be is the channel wing force, that channel should stand instead tummy. ① chemical element symbols with international and national symbols to represent the chemical composition of the Arabic alphabet to represent the content: Such as: China, Russia 12CrNi3A ② with a fixed number of digits to represent the types of steel series or digital; such as: the United States, Japan, 300 Department, 400 series, 200 series; ③ composition of the Latin alphabet and the order number, saying only that purpose. Channel specifications mainly used height (h), leg width (b), waist thickness (d) of equal size to channel channel (3) that the current domestic channel sizes from 5-40 numbers, that is the appropriate height to 5 -40cm. At the same height, light channel narrower than the ordinary channels of legs, waist thin and light weight. 18-40 large channel number, channel number 5-16 for the medium channel. Import channel indicate the actual size specifications and related standards. Import and export orders generally channel in determining the appropriate carbon steel (or low alloy) steel post to the specifications required by the main use. In addition to the standard number, channel no specific composition and performance series. Channel delivery length divided length, double length of two and a predetermined tolerance values ??in the appropriate standard. The length of the selection range of domestic channel number according to the specifications were divided into 5 -12m, 5 -19m, 6 -19m three. Select the range of imported channel length is generally 6 -15m. Anyang Iron & Steel Co. unit is the first rolling mill in 400mm production numbers angles and channels based profiles units, the annual output 650,000 tons, of which channel the product specifications for the 638 ~ 1208, total production accounts for about 25 %. Finished channel of staging uses 1 400t cold shear machine. Channel cut quality for subsequent processing, especially welding quality greater impact, if present at a shear fracture collapse shoulder, burr, tearing, cutting oblique defects, there is a big gap when the docking channel will affect welding quality, especially strength index, resulting in greater security risks. Angang vertical 400mm unit with the pace of production and increase production, said cutting defects more prominent, cutting quality of internal control compliance rate was 94.2%. And cutting edge of life is getting shorter, the average class size is changed once, resulting in increased production costs and labor intensity of workers. To solve these problems, from the process, technical and operational were carefully analyzed, and the corresponding improvement measures, and achieved good results. 1. Cut process optimization process reasons channel 1 channel 1 shearing process optimization design capacity of the unit is 200 000 t / a, but now the production reached 600,000 t / a, inadequate cooling bed capacity problem area very prominent, compared with the production angle, channel cooling slowly, resulting in a higher temperature when cutting channel, prone to collapse shoulder, burr, tearing and other defects, and a greater impact on the life of the cutting edge . 2, cutting edge design reasons channel cutting edge design is the fundamental basis for the finished pass channel shape shown in Figure 1 (100 # channel, for example). This design is prone to shearing process in the following questions: First, two channel compared with other parts of the shoulder, relatively thick, the required shear force is large, cutting edge wear faster, cutting edge use for some time . This part of the relatively large amount of wear and tear, resulting in a larger gap shoulder, shoulder phenomenon prone to collapse; two legs compared to the waist at the channel, due to the shear angle, when the cutting edge wear, shear legs , the shear quantity is small, the legs cut from the usual cut into a tear, channel leg end surface prone to glitches; the third is on the cutting edge down the slope and channel leg finish pass basically the same, so that when the legs are substantially simultaneously cutting force, shear force is large, cutting edge wear faster, while cutting indentation serious leg side, on the other hand cutting edge after aging, prone to cut part of the channel tear, burr phenomenon more. After the two channels is the main influence cut quality. A sale: landline: 0635-8388655 landline: 0635-8387855 Mobile: 15266455558 Sales two: landline: 0635-8218485 landline: 0635-8215458 Mobile: 13290269373 three sales: landline: 0635-5088885 Mobile: 15553672637 Fax: 0635 8330114 Online qq: 2480265557 Account Name: Liaocheng Shun Metallurgical Products Co., Ltd. Bank: Agricultural Bank of China Ltd. Liaocheng Xinghua Branch Account: 15852001040015445 Tax ID: 372501074433095 Liaocheng Economic Development Zone, Huitong International Metal Logistics Park b-104 www .20gyuangang.com www.16mnyuangang.com www.20cryuangang.com www.yuangangjg.com www.trykyy.com/ http://www.yuangangxs.com/ http://www.27simnxs.com/ http: // www .tjxyyg.com / In response to these three issues, namely to take the appropriate measures. 1, for the problems of slow cooling bed cooling, mist cooling bed area increased to improve the cooling fan speed cooling bed area, and a double-footer added a set of spray nozzles before shears, scissors lower channel temperature-cut parts, thereby avoiding the high temperature caused by steel shear defects. Cut Optimization channel 2 channel 22 cut process optimization, channel cutting edge design for the existing problems, combined with the actual situation of production, the cutting edge design in the shape shown in Figure 2 (100 # channel Case ). By the width of the cutting edge 100mm instead 99mm, reducing the blade clearance in the horizontal direction, improving the quality of channel cut corners portion; cutting edge corners next arc size from R8mm changed R7mm, improve it onto the The shear amount of overlap, improve channel quality shoulder cut; cutting edge at the top width changed from 79mm 80mm, 97mm replaced by a bottom width of 94mm, the lower leg end cutting edge inclination slope finishing pass less than channel , so that when the legs shearing, the leg, not the bottom up as well as by the force, thereby reducing the shear force, improving cut quality. 3, by performing the actual cutting of the specifications of the channel quality and cut the gap data regression analysis to develop a specification for each specification shear gap, in particular: 63 # channel of 0.20 ~ 0.30mm, 80 # channel to 0.20 ~ 0.35mm, 100 # channel of 0.25 ~ 0.35mm, 120 # channel of 0.25 ~ 0.40mm, and do Q235C channel with a thickness of 0.20 ~ 1.00mm different gasket. Each time you replace the cutting edge, the first measurement of the gap, and then select the appropriate shim, cut the gap to ensure that the process is controlled within the required range. Import Q235C channel of channel greater than exports. Simple import and accompanying sub-project to introduce two sets of import and other channels. In recent years, several major ports in China's coastal areas (Dalian, Tianjin, Qinhuangdao, Lianyungang, etc.) in the new, expanded oil, coal, grain and other bulk import and export commodities automatic loading and unloading works, with the main equipment imported at the same time, imports are also large channel increasing. The main producing countries and regions as Japan, Russia and Western Europe. The main exports to the export channel Q235C channel Hong Kong and Macao. Channel surface quality and geometry tolerances have specified in the standard. General requirements There shall be no surface defects harmful to spend, do not have a significant twist, the provisions channel waves bend (camber) allowable values ??for the parameters and specifications channel surface shape (h, b, d, t, etc.) values, tolerance values. Channel geometry incorrect main manifestations are: angle, legs spread and legs and the like. Q235C channel Tolerance (mm) Model 5 6.3 6.5 81 012 12.6 141 618 height h ± 1.5 ± 2.0 ± 2.0 ± 3.0 ± 3.0 leg width b ± 1.5 ± 2.0 ± 2.5 ± 3.0 ± 3.5 d ± 0.4 ± thick waist 0.5 ± 0.6 ± 0.7 ± 0.8 stoop deflection should not exceed 0.15d Q235C channel length is generally 5 ~ 12m 5 ~ 19m 6 ~ 19m Affected by the dollar lower for a third day on the 27th, which boosted the US dollar denominated gold prices. With the US stock market lower today, in New York gold futures contract rose more than 2 percent, regained $ 1,200 critical points. Market analysts said that the price of gold rose with the May options expire induce product has a lot of technical buying. Q235C channel economic data, the British market research firm released on the 27th Maji Te Group market research data show that in April the US service sector purchasing managers' index (PMI) initial value of 57.8, lower than market expectations, the month-end value 59.2 was the highest since August 2014 level; but the service sector employment index declined from March 54 to April rose 55.4. Q235C channel in more volatile silver market, boosted by the rising price of gold and silver futures rose nearly 5%. 27, silver futures for May delivery rose 75.8 cents to settle at $ 16.394 an ounce, up 4.85%; platinum futures for July delivery rose $ 32 to close at $ 1,153.4 an ounce, up 2.85%. If the Fed to raise interest rates as early as possible and not revealed to postpone raising interest rates signal, will be detrimental to the gold price. In general, rising interest rates will lead to gold assets less attractive, is not conducive to higher gold prices. Q235C channel in the Asian market, in physical demand for gold has increased after the early decline in prices, but the increase was limited. 28 China Gold Association released data show that in 2015 a quarter of China's gold consumption 326.68 tons, compared to last year increased 3.69 tons, an increase of 1.14%.