The new Stainless Steel Wire Rope should not be used immediately under high speed and heavy load conditions, but should be run under low speed and medium load conditions for a period of time, so that the new wire rope can adapt to the use state first, and then the speed of the wire rope can be gradually increased to lift the load. That is, wire ropes must go through an initial break-in stage before high-speed, heavy-duty work.
When using stainless steel wire ropes and pulleys, care must be taken to prevent the wire ropes from jumping out of the pulley grooves. If the wire rope is still used after it is removed from the wheel groove, the wire rope will be deformed, kinked, broken wires, and broken strands. This will seriously shorten the service life of the wire rope. If the rope breaks, it usually has very serious consequences.
Long Link Chain,Galvanized Link Chain,Round Steel Link Chain,Stainless Steel Long Link Chain Jiangsu Hongze Stainless Steel Wire Rope Co., Ltd , https://www.hzrope.com
Steel enterprises continued to narrow their profits in the first quarter and were forced to stop importing spot mines.
In the first quarter of this year, domestic average daily crude steel output reached the highest level in the same period, while corporate profit margins further narrowed, and the profit margin of key steel companies was only about 3%. This is the information disclosed in the statistical report released by the National Development and Reform Commission yesterday. The report pointed out that the daily output of crude steel in the first quarter was as high as 1.92 million tons, which was the highest level in the same period. In the first two months of this year, China's average daily crude steel was 193.13 million tons and 19.395 million tons. According to the data of the China Iron and Steel Association, the national average daily production of crude steel in March was 1,193,700 tons, which was calculated to produce 59.325 million tons of crude steel in the same month. From January to March, the country produced a total of 173.5 million tons of crude steel, an increase of 9.8% year-on-year. The average daily output was 1,297,800 tons. According to the daily output from January to March, the annual crude steel output can reach 700 million tons. Further growth in steel production has also exacerbated the competitive pressure in the domestic market. In the first quarter, the price of steel (4907, 21.00, 0.43%) fluctuated and the comprehensive price index of steel rose from 128.29 points at the beginning of the year to 136.31 points in mid-February, and then began to decline, and fell to 131.95 points at the end of March. At the same time as steel production increased, prices of raw materials such as iron ore continued to climb. The NDRC report pointed out that the current coal price is at a high level, the international iron ore price continues to rise, the spot price of iron ore with a grade of about 63% has reached about 185 US dollars / ton, seriously squeezing the profit margin of steel enterprises, the focus of steel enterprises The profit margin is only about 3%. It is worth noting that in mid-March, imported mineral prices fell after the earthquake in Japan, but fell to rise in late March. At present, the 63.5% grade Indian mine price has risen to US$189/tonne (CIF), which is US$19/ton higher than the lowest price in late March. The statistics of the General Administration of Customs also showed that compared with the average import price of 158.47 US dollars / ton in February, the average price of imported iron ore in China in March 2011 was 160.71 US dollars / ton, the average price increased by 1.41%; the same period last year was 101.49 US dollars. / ton, a year-on-year increase of 58.35%, in March 2011 China's imports of iron ore after February, once again refreshed the highest point of historical average price. However, according to the reporter, after the price of the ore market has risen rapidly, the market wait-and-see mood is gradually increasing. On the one hand, high-grade resources are relatively tight, port traders expect post-market prices to rise, and enthusiasm for shipments is low; on the other hand, with the rapid rise in market prices, the difference between imported iron ore and domestic iron concentrates is rapidly shrinking. The price advantage has weakened, and the steel mills have slowed down their purchases after the previous replenishment of stocks. In order to reduce the cost pressure, some steel companies have stopped importing iron ore spot. The analysis report predicts that due to the high crude steel output in China and the continuous rebound in domestic steel market prices, the market expects that the price of imported iron ore will still have room to rise. However, considering that the price of the previous market has risen too fast, it may be slightly adjusted in the short term. For the future trend of the steel market, the National Development and Reform Commission reported yesterday that this year is the first year of the “Twelfth Five-Year Planâ€. Policy measures such as affordable housing and urbanization will form a favorable demand for steel. The earthquake in Japan has also raised the expectations of steel companies for export growth to a certain extent, all of which have contributed to the growth of steel production.