High cost of wear steel bar manufacturer

Ofsted bar manufacturers offer ofsted bar / parameters / Capacity Consulting (Photo) rod mills usually wet overflow type, can be used as an open circuit grinding, widely used in artificial stone sand, mineral processing plants, chemical plants in the electricity sector a grinding, cylindrical body with an appropriate grinding media - Bars. Select ofsted bar should select large steel material used in the domestic market is now steel bar rolling mills from its technology not ask, wear very poor, consumption in the use of enormous resources countries In a lot of waste. Round by steel production raw materials, not finished, do ofsted bar carries a lot of problems. 1, wear high: round because of low hardness, toughness was poor, resulting in consumption of very large, and indirectly lead to magnetic link heavy tasks, high costs, and even affect the quality of products. 2, two shrill: two tapered steel bar for many reasons, mainly because of two steel bar and rod mill material contact area is greater than the probability and the middle part, resulting in two effective grinding time longer than the middle, once two and the proportion of the middle of the naked eye can see significant differences in the appearance of the root Bars we call "failure" because it has not achieve an effective role in the grinding mill inside. 3, broken rods: The reason is loose inside the material. Steel billet problem, only the large steel mills to reach inside tight technical requirements, especially the diameter of 70mm or more, most of the steel billets can certainly shape, but the compression ratio and low hardenability, that organization is not tight . Coupled with round not removed at the factory of its internal stress, broken rods as explosion - fried, began from the inside, principle steel production of steel bars is like blowing balloons, it must be internal stress inside to lift off to prevent Information Technology Services Minister Shou lake one hundred thirty-six one plus two plus three comprehend and Wuling, broken rods. 4, curved rod: rod bending stiffness is mainly due to the low bar, quite soft, when the mill where the impact of stress and other external force will be bent easily. Once a rod bent, the order will lead to parallel steel rod inside the whole mill is disrupted (steel bar is run in parallel inside the mill, the material into which time slot is ground into small particles or powder), light the result out of order after the steel rod mill efficiency is low, while leading to the mill steel rod was thrown, threatening the security of staff and damage to the mill and other production equipment. 5, low productivity, mainly the qualified products. It is a problem that a lot of companies, many reasons, steel bars of its great impact. For example, the ratio of the diameter of steel bars between various unreasonable, irrational loadings, additional steel bars unreasonable, did not reject the failure Bars etc. We all know, strong steel bar is easy to break, too soft is easy bend. Division I through a lot of tests proved that the hardness of the rod mill at about HRC50, good wear resistance, the lowest rate of broken rods, rod mill hardness is optimized. So now, the best performance products to maintain the form of rod mill around tables hard HRC50, hardness to the core section showed a decreasing trend. This rod mill in both wear resistance, but also can ensure the toughness rod mill, bar mill to reduce brittleness. Rod mill quality standards: (1) the rod mill in Rockwell hardness HRC45-55 (2) impact toughness values ??greater than 12 joules (3) are based on a large round steel procurement, wear Bars advantages are as follows: (1) good wear resistance, abrasion resistance effect is made of steel bar rolling 1.5-2 times, significant cost savings to customers. (2) using the latest methods of production, sizes can be adjusted according to customer demand, greatly improving flexibility, in addition to unnecessary waste. (3) extend the service life, cost savings, reduce workers' labor, not to stop the mill every day, plus steel bar and troubles, but also greatly increase the yield. (4) reduce the magnetic difficulty, improve product quality. Silica sand industry attaches particular importance to this article. Shandong Huamin Steel Ball Co., Ltd., formerly established in 1986, the first steel factory in Zhangqiu County, in May 1996, changed its name to Jinan Huamin Casting Co., Ltd., in August 2003, changed its name to Shandong Huamin Casting Co., Ltd., in April 2008 changed its name to Shandong Huamin Steel Ball Co., Ltd. At present, Shandong China and China's Industrial Park covers an area of ??320 acres, building area of ??50,000 square meters, employees 236 people, with modern office environment, advanced production equipment and a number of high-quality scientific and technical personnel, management personnel. The company is mainly based on the various types of grinding media - wearable forged steel ball, wear steel bars of the development, production and sales, after years of unremitting efforts of all staff, we have established a leading position in the domestic forging steel ball industry. Our existing two production areas, with independent research and development of forged steel ball production line 11; steel rod mill automated production line 3, the annual design production capacity of 150,000 tons. The major products exported to Chile, South Africa, Ghana, more than thirty countries and regions. And with China National Gold Group, China Aluminum Group, the South African gold companies, Rio Tinto Group, 500 domestic and foreign enterprises to establish a strategic partnership. AHK company has won the Shandong Province famous brand enterprises, high-tech enterprises in Shandong Province, Shandong Province with the contract and trustworthy enterprises, Jinan City, Zhangqiu exports advanced enterprises and other awards. AHK production technologies absolute advantages: 1: production process using our self-developed fully automatic quenching of the rod mill production line, advanced heat treatment temperature control devices and supporting equipment, the choice of independent research and development of special wear-resistant materials production. 2: The production line is currently the most advanced heat treatment quenching steel bar production line, fully automated, fully realized Bars transfer of heat treatment integrated microcomputer control, simply start the production of different materials to the corresponding button automated production lines each Temperature links between each point can be displayed in the display at the microcomputer and control, Bars hardenability layer thicker, after the heat-treated steel bar production line is more uniform than ordinary wear heat-treated steel bars, steel bars each section uniform hardness, heat-treated steel bars have been completely eliminated all parts of varying hardness and scale of the problem, a progressive lowering of the rate of wear and broken rods. 3: the hardness of steel bars to break through the traditional, conventional heat-treated steel bars is about hardness HRC10-15 ordinary round for heating or heat treatment hardness directly enhance stepped up to HRC45-55, but different brand Huamin Steel Bars The place is the use of advanced production lines, hardness directly to a high-hardness heat treatment after the round, then treated again with heat treatment technology to a range of hardness HRC45-55, which is Huamin brand of high hardness steel bars, uniform hardness, continuous rod key. AHK brand products parameters advantages: 1: China and China licensing Bars 45-55 hardness, wear effect than ordinary round 2-2.5 times, China and China licensing Bars straightness ≤3 / 1000, broken rods rate ≤3% , (customer actual breaking bar rate ≤1%) impact toughness ≥12J. Actual wear heat-treated steel bar is much better than traditional production lines. 2: eligible ISO9001-2000 international quality system certification, ISO14001-2004 international environment system certification and other honors, AHK licensing round steel bars for the production of high quality, reliable steel quality raw materials, not by small mills, ensure the stability of quality , to ensure the quality of the premise of minimum prices, used for customers who are satisfied, we can say the lowest quality. Rod mill product quality inspection requirements: 1. On the next rod mill feed material by sawing, dimensional tolerances order requires the company to prevail. After cutting ends with a grinder throw into R arc. 2. Surface grinding rod mill may not have visible cracks, burnt, crack phenomenon. 3. The grinding rod straightness is not less than 0.2%. Diameter tolerance + 0m; -1.5mm; length tolerance + 0m; -25mm, less than 3% broken rod mill product testing methods: 1. grinding rod surface quality inspection with the naked eye. 2. The size and defect rod mill with a vernier caliper, defective parts should be measured to avoid the ball. Length measuring meter stick. 3. The rod mill surface hardness was measured in accordance with a point per meter, the date arithmetic average. The grinding rod straightness test: class sampling 5, placed on the metal framework after straightening, the one end flush against the measuring head and the other straightening iron frame distance. Each product is to be rotated at least 3 times. Rod mill product acceptance: 1. Each ball shift production quality and size, according to the above criteria strict inspection, qualified storage. 2. Each rod mill hardness test five times, if a steel bar standard, should either take double the number of re-inspection, if the result is still a failure, and all meet the requirements of the average hardness value hardness provisions, should judged as qualified, or unqualified; 3. Factory sales rod mill test: for each batch sold rod mill, ball carried by the QC for size, appearance and hardness testing, visual inspection of the number of dimensions, each size 5 a hardness test, each size 3-5, determination above. Bars and ordinary wear and normalized steel round bars contrast Description: First, the quality, performance comparison: 1, wear-resistant steel bar products are self-developed special wear-resistant steel. Purchase of raw materials required by the user is also state-owned special steel production. Steel material than other conventional round of density, compression ratio, tensile strength, yield strength have been improved. Ensure the performance and qualification rate of steel. Ordinary rod mill is not rigorous procurement process. 2, normal wear-resistant steel bar products for the hardness HRC45-58, ordinary rod mill hardness HRC15-22, contrast index from the situation and after use, wear-resistant steel rod of the same material cycle (life) than normal Stick to Improve 120% -140%. 3, wear-resistant steel rod straightness of products by processing machinery straightening machine, to ensure the straightness of less than one thousandth of proportion. Common ground rod straightness usually per thousand to thirty thousandths. 4, wear-resistant steel bar products off the stick rate is typically less than one percent. Normal wear rate is high stick broken rods (not sure). 5, high temperature quenching and tempering production process of wear steel bar products that change the structure of the medium, so that the grinding rod microstructure become more dense and more resistant. Impact toughness is also improved. Common quality rod mill without any change. Second, the use of effects, cost comparison: 1, high wear-resistant steel bars Products abrasion than ordinary rod decreased by 20 per cent plus stick down time, increased by 20% of the production. While reducing the labor intensity. 2, wear-resistant steel rod straightness good product to ensure the accuracy and fineness of the grinding material. 3, wear-resistant steel bar products to ensure the good toughness not easily broken rods, reducing accidents and downtime. 4, wear-resistant steel bar products at both ends is specially treated to ensure that the ends are not easily sharpened ground, ground ends is easy to bend and break. So ordinary rod mill can not overcome this deficiency. 5, through a comprehensive comparison of the use of the user wear steel bar products can save 35% -40% of the cost than conventional grinding rods. Third, wear-resistant steel bar production process: raw material custom manufacturing --- machinery under - mechanical straightening machine Straightening - high temperature heating furnace --- --- full-transparent quenching and tempering furnace thermostat --- comprehensive quality inspection --- --- secondary heating tempering performance testing - packaging and storage form at the bottom to the top form at the bottom form