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Ultra high frequency furnace front to cater to the ribbed bar better quality
In 2013 October, the superior sent a notice, notice as follows:
1 reinforcement application technology specification to actively promote the high strength steel, which provides technical support for the comprehensive application of 400Mpa, 500Mpa grade steel, and in some range (beam, columnlongitudinal stress reinforced) in the elimination of HRB335steel. Iron and steel enterprises should advance equipment modification and technical reserves 400Mpa, 500Mpa grade steel production, good production HRB335 reinforcedpreparations.
2 HPB235 steel is no longer used, and used HPB300 steel,the application of departments and enterprises should be prepared to. Future of Q235 wire rod construction directlyapplication (but less traffic, railway, hydraulicengineering temporarily also application), the minimum diameter of HPB300 reinforced bar should be 6MM, production units and the use of units are not adhere to the 6.5mm do not put.
3 in the application of HPB300 reinforcement of the transition period, the production units and the use of units should be used for small diameter, high strength steel tomake the transition.
4 strengthen quality deviation control, avoid negative deviation exceed the standard of reinforced approach,resulting in adverse impact and economic loss.
So far, the new high frequency furnace / Henan Chao Feng electrical introduction of high frequency induction
heating equipment. The annealing ribbed bar were studied. The success of the experiment the heating method can make the best of the cold-rolled ribbed bars!
Ribbed steel quenching
Our factory is a professional production of high frequency furnace production enterprises, quality of our factoryusing high frequency furnace steel production in our plantproducts far exceed the standards prescribed by the state,its strength is between 550—-700, the elongation is higher than 10%, a 180 degree bend without breaking. Rib height,rib clearance are the national standard limit. The national standard is the extension rate of 8%, strength is greater than 550, the size is ± 4%, that is to say, the samenumber, according to the theory of weight, 40 kilograms per ton can be more or less 40 kilograms are qualified, I plant products are generally in the 30 kg, and the three with aribbed steel bar based on the all the above 40 kilograms,and the elongation of severely substandard, and some evenonly 6%, very easy to brittle fracture, not pulling,bending. I plant products than the previous old products per square meter can save 5% - 10% of the weight of more than50% bar, strong housing structure built out of the olderproducts, cold rolled ribbed steel bar construction, productgrip good, strong toughness, in line with nationalrequirements and the needs of the times, is the ideal energy saving, assure the safety of building materials to enhancethe seismic force. The May 12, 2008 earthquake, if Wenchuan was heat treated to use both sides of ribbed bar, precast slab continuous, casualty rate can be reduced by more than half.
The random inspection of indefinite number of the products of our factory after each class in each production line,after the factory quality supervision inspection,confirmation before leaving the factory. And, high frequency furnace we do after the experiment debugging completedbefore delivery to the customer. So the product quality is absolutely reliable. Warmly welcome customers visit our factory inspection visit, both sides of the heat treatmentribbed steel quenching equipment promotion to our home, ourfuture generations. Cold rolled and annealed double rib is a new generation product, whether it is sales or use theproducts of our factory are promising, the absolute value.