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     Jiyuan Shenzhou is a professional manufacturer of Mandrel, Mandrel Assembly, Recoiler, uncoiler

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Classification of steel strip

Steel strip is a kind of steel with large output, wide application and many varieties. It can be divided into hot-rolled steel strip and cold-rolled steel strip according to processing method; it can be divided into thin steel strip (thickness not more than 4mm) and thick steel strip (thickness greater than 4mm) according to thickness; it can be divided into wide steel strip (width greater than 600mm) and narrow steel strip (width not more than 600mm) according to width; narrow steel strip can be divided into direct rolling narrow strip and longitudinal cutting narrow strip from wide strip; according to surface state, it can be divided into original rolling surface and plating (coating) layer Surface steel strip; it can be divided into general steel strip and special steel strip (such as hull, bridge, oil drum, welded pipe, packaging, self-made vehicle, etc.) according to the purpose.
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10
2020-11

Use of aluminum strip

Release time : 2020-11-10 点击量 : 0
Aluminum tape has many uses, such as: aluminum plastic composite pipe, cable, optical cable, transformer, heater, shutter and so on.
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10
2020-11

Working principle of coiler

Release time : 2020-11-10 点击量 : 0
The coiler with tension reel is used in reversible or irreversible cold rolled steel plate or strip rolling line. This kind of coiler is not only used to take (unfold) rolled pieces, but also to generate tension on the rolled pieces. This is to keep the rolling process stable, make the plate more tightly coiled, and make the rolled pieces have the correct direction when feeding into and rolling out of the rolls. In the rolling process, it is generally necessary to maintain the front tension and back tension. Depending on these tensions, the pressure on the roll can be reduced, and the warpage of strip steel can be reduced, which is beneficial to improve the surface quality of strip steel. In single stand reversible cold rolling mill, coiler with tension reel is installed in front of and behind the mill, which alternately become active or driven, that is, one coiling and the other unfolding. On the continuous or irreversible single stand cold rolling mill, the coiler is only installed at the back of the mill and the uncoiler is installed in front of the mill. When the first pass is rolled, the strip steel is sent from the uncoiler to the work roll of the rolling mill, and the pressing plate or roller guide plate is used to compress the strip steel, which produces a small post tension for rolling; then, the strip steel enters the jaw of the coiler drum, clamps the head of the strip steel for coiling, and generates the front tension. The disadvantage of reversible cold rolling is that both ends of strip cannot be rolled. In order to reduce the consumption of scrap at both ends, large diameter steel coils or welding lead strips at both ends of strip steel are often used. In the process of coiler coiling, the diameter of steel coil is changing, which leads to the constant change of coiling speed. In order to make the coiling speed adapt to the rolling speed and keep the tension constant during rolling, the speed of the coiler is required to be adjustable, and the speed range should adapt to the change of rolling speed and coil diameter. Therefore, the adjustable speed DC motor is generally used. After rolling, the steel coil is to be unloaded from the drum. Therefore, the coiler drum must be cantilever type. However, the reel is used to take up the strip steel under a great tension, so the reel shaft will bear a great load (including the weight of the drum, the weight of the strip steel coil, the torque caused by the bending of the strip steel and the tension). In order to ensure the rigidity and strength of the drum shaft and reduce the bending of the drum shaft, in addition to increasing the size of the drum shaft, a rotating bracket is generally installed at the free end of the drum. When coiling the strip, the support supports the free end of the drum; while in the process of unwinding, the support turns to the side, which does not hinder the unwinding. In the process of coil unloading, the steel coil is pushed out from the drum by a pusher or a pusher with a decoiler trolley, and then transported away. Figure 9-2 is the schematic diagram of the recoiler. It is composed of hydraulic cylinder 1 and push plate 3. Generally, the pusher is located under the drum, and its stroke is controlled by the limit switch. The pusher plate itself is a trolley, which can run back and forth along the track parallel to the drum to realize the rolling work.
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10
2020-11

Classification of steel strip

Release time : 2020-11-10 点击量 : 0
Steel strip is a kind of steel with large output, wide application and many varieties. It can be divided into hot-rolled steel strip and cold-rolled steel strip according to processing method; it can be divided into thin steel strip (thickness not more than 4mm) and thick steel strip (thickness greater than 4mm) according to thickness; it can be divided into wide steel strip (width greater than 600mm) and narrow steel strip (width not more than 600mm) according to width; narrow steel strip can be divided into direct rolling narrow strip and longitudinal cutting narrow strip from wide strip; according to surface state, it can be divided into original rolling surface and plating (coating) layer Surface steel strip; it can be divided into general steel strip and special steel strip (such as hull, bridge, oil drum, welded pipe, packaging, self-made vehicle, etc.) according to the purpose.
查看详情 查看详情
10
2020-11

Use of aluminum strip

Release time : 2020-11-10 点击量 : 0
Aluminum tape has many uses, such as: aluminum plastic composite pipe, cable, optical cable, transformer, heater, shutter and so on.
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10
2020-11

Classification of aluminum strip

Release time : 2020-11-10 点击量 : 0
The common aluminum strips are 1050, 1060, 1070, 1100, 3003, 3004, 5005, 5052, 8011, etc. The common states are o state and H state. O is the soft state and H is the hard state. O and h can be followed by numbers to indicate the degree of hardness and softness, and the degree of annealing. The specific uses of aluminum strip are: Transformer aluminum strip (transformer aluminum foil), aluminum strip for high frequency welding hollow aluminum strip, aluminum strip for fin radiator, aluminum strip for cable, aluminum strip for stamping, aluminum strip for aluminum edge strip, etc.
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Jiyuan Shenzhou Industry co.,Ltd is a professional manufacturer of mandrels, Mandrel assembly(including main shaft, segment, spreader, wedge, ect.), tension reel (recoiler),payoff reel(decoiler,uncoiler), gearbox, and related spare parts; These products are widely used in steel,aluminum,copper coil processing line, such as hot rolling mill, cold rolling mill,continuous pickling line, continuous galvanizing line, annealing line, slitting line, cut to length line,color coating line, etc. 

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