General-purpose low hardenability cold work tool steel, advanced high carbon tool steel, the advantages of good machinability, cheap, easy to source, but poor hardenability, quenching deformation, because the steel contains few alloying elements, tempering resistance is low, and thus low load-bearing capacity. Although there is high hardness and wear resistance, but the small section workpiece toughness is not enough, large section section billet has the tendency of residual reticulated carbide.

The minimum heating temperature of globalization 740 ℃, the best isothermal temperature 690 ℃ -720 ℃, the emergence of lamellar carbide heating temperature 780 ℃, heated softening temperature 250 ℃, hardening depth of water quenching 15-18 mm, oil quenching 5-7 mm.

The steel is rough machined in the annealed condition, then quenched and low temperature tempered to high hardness, and then finish machined. High wear resistance and mirror polishability are obtained. Low carbon martensite low temperature quenching is carried out to give high wear resistance and toughness, prevent and reduce deformation and cracking phenomenon

Our Strength

The first phase of July 2018 preparatory construction is basically completed, mainly with Austrian technology - EBNER production of all-hydrogen bright hood annealing furnace. Comprehensive industry advanced technology can eliminate rolling stress and annealing stress AGC mill, rolling thickness 0.8 ~ 13mm width 29 ~ 500mm, strip sickle bay ≤ 2mm / m. Strip thickness gauge adopts German joint venture X-ray thickness gauge, strip thickness tolerance can meet the high requirements of customers (tolerance accuracy of each level of increase, the rate of finished product will be reduced by 1.5 ~ 2% so a price increase of 200 yuan / ton). Precision slitting machine with double knife base and double reel, slitting width 29～500mm.

The second phase of the main plant to build an additional 10,000m². Equipment mainly has Austrian technology can produce width <800mm thickness <4mm strip quenching line a (can fill the domestic blank, expected capital 15 million, monthly output of 1,000 tons). Put in an annual output of 60,000 tons of thickness <13mm, width <800mm high-pressure water surface oxide treatment production line (estimated capital 10 million), an additional annual output of 60,000 tons of φ380x1000 ~ 1500mm wide plate slitting production line (estimated capital 4 million), two high-precision AGC rolling mill (estimated capital 7 million), two narrow strip slitting machine (estimated capital 5 million). million).