Okorder.com is a professional 4 Rebar supplier & manufacturer, offers integrated one-stop services including real-time quoting and online cargo tracking. We are funded by CNBM Group, a Fortune 500 enterprise and the largest 4 Rebar firm in China.
The billets used in continuous small mills are generally continuous billets, the length of which is usually 130~160mm, the length is about 6~12 meters, and the billets are 1.5~3 tons in weight. The rolling line is mostly flat interchange arrangement to realize all round rolling without torsion. According to different billet specifications and finished sizes, there are 18, 20, 22 and 24 small mills, 18 of which are mainstream. The use of bar rolling reheating furnace, high pressure water descaling, in addition to the new technology of low-temperature rolling, endless rolling, rolling, rolling development to adapt and improve the precision of rolling billet, rolling mill is mainly to improve the accuracy and speed (up to 18m/s).s
Generally, the right-hand thread is in accordance with people's habits, just as the pointer of a clock is right. Compared with the less threaded but is indispensable, it has certain effect, more commonly used threaded on the rotating shaft with a more general rotation shaft are turning to the right, as some pump, motor, fan in the shaft as a tightening wheel for all kinds of leaves threaded, when the impeller rotation relative to the tightening nut, it has a different rotation inertia force, if it is the right-hand thread words will lead to a tightening mother increasingly loose causing impeller loose damaged equipment. This force in the switch machine or a great change in speed when the performance is particularly prominent, so the choice of left-handed thread more and more tight.s
When we buy rebar, we should not only look at the size of the thread steel, but also use the vernier caliper to measure whether the size meets the requirements. A lot of times, inferior thread steel through the flat flat way to deceive the buyer's vision, so from the steel reinforcement to observe the end of the steel is flat oval, meet the requirements of the thread steel is basically round.s
The advantage of threaded steel is not a little at two, but a lot. Generally speaking, the anti-seismic thread steel ensures the seismic resistance of the reinforcing steel bar, so that the anti-seismic thread steel can be stable when the building is inclined or deformed, and does not break.s
Generally, the thickness of the plane is about 1/30 of the span, and the value is more than 80. The higher the mark of commodity concrete, the higher the price, the different areas are, the average is about 350.s