STEEL WIRE ROPE FOR GENERAL APPLICATIONS

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STEEL WIRE ROPE FOR GENERAL APPLICATIONS

Advantages

Product description

STEEL WIRE ROPE FOR CRITICAL APPLICATIONS

Steel wire rope for general applications suitable for machinery , architecture, ship,fishery,forestry,mine,etc.

1、 STANDARD

Meet GB/T 20118-2006 standard

Technological features

Applications

Q: What is the difference between cable stayed bridge and suspension bridge?: The main weight of a bridge is not the car or train on it, but the road itself, that is, the road we see. Now let's analyze this:We analyze it with a pylon. The two sides of the pylon are symmetrical stay cables which connect the main beam of the pylon through the stay cables. Now suppose that only two towers on both sides of the cable, symmetrical each one of the two cables subjected to beam gravity, two symmetrical of the cable along the direction of the force, according to the stress analysis, the stress can be decomposed into a horizontal and vertical force to a downward force a vertical force; and the same on the right side of the force can be decomposed into the right level of a downward force; the two force is symmetrical, so the two level of the left and right horizontal force cancel each other out,

Q: Where should I pay attention to the formwork?: When the welded steel bar and the formwork are installed together, the following requirements shall be met:The formwork must be fixed on the joint of the load-bearing welded steel frame;When installing the reinforcing steel formwork assembly, the sling shall be tied up according to the hanging point designed by the template.

Q: What is the line on the train for?: The catenary provides 25 thousand volt power frequency alternating current for the locomotive, according to the locomotive model difference, adopts the direct step-down, the frequency conversion power supply or the AC and DC conversion power supply, this is mainly for the speed regulation convenience.

Q: What are the dangerous sections of the crane hook?: ) C -C section of the section is the thinnest part of the hook column in a sling tension, have pulled off the trend. Here the maximum tensile stress, it is also dangerous section.

Q: How much is the crane arm of the tower from the residential building recently?: No aluminum conductor or steel shall be used as grounding or ground wire for the installation of tower cranes. A bolted wire must have an end. Grounding is mainly made up of the following three ways:1. the grounding body adopts a regular grounding pile, or a 33*4.5 long 1.5m steel tube, or a 70*70 long 1.5m angle steel.2. the floor is made of steel plates or other metal plates with an area of 1 square meters. The ground is deep from the ground 1.5m.3. a copper conductor with a cross-section of not less than 28 mm or a steel conductor with a cross section of not less than 50 mm is buried in the slot and its embedment length is determined by the grounding resistance.In the above three ways, the grounding body leads the copper conductor, the sectional area shall be no less than 25, if the soil is not conductive, the sodium chloride (salt) can be embedded in the soil. Then irrigation. For walking crane, each rail must be grounded, and the two tracks are connected by wires. Electrical connections should also be made between the two rails, with a resistance of no more than 4.

Q: Requirements and matters needing attention in hoisting: We often encounter equipment installation, transport and installation work, whether the derrick is lifting or hoisting machinery should pay attention to the following points: (1) the indigenous construction equipment for handling mobile rolling method, the rolling rod thickness should be consistent, should buetow annual row width is 50cm long, no gloves in rollers. While loading and unloading piping shall not be greater than 20 degrees slope, raceway erection should be smooth, solid, joints staggered, the rolling speed is not too fast, when necessary to use ropes.(2) in the course of installation, if problems are found, measures should be taken in time, and then continue to be hoisted after treatment.(3) large tower equipment for hoisting derrick, hoists joint operation, the hoist hoisting speed must be roughly the same, to ensure that the tower body of each suspension force roughly uniform, avoid the tower stress uneven deformation.

Q: What are the specifications for the length, length, and method of operation of the wire rope?: Users need high quality steel wire rope, it should be long life and high quality stable and reliable wire rope.

Q: How to choose the right sling?: The selection of rigging should be adapted to the kind of articles, environmental conditions and specific requirements.The sling to carry out strict inspection, in accordance with safety color to use, if found damaged sling can not be reused, need for scrap processing.The slings used for lifting operations must be of the same length.The sling shall not exceed its rated lifting capacity, and the sling shall not exceed its maximum safe working load.

Q: Notice of tower crane?: Tower cranes shall not operate near overhead transmission lines. If they are limited to field conditions, they must take safety measures when operating alongside the line. The safe distance between tower crane and overhead transmission line shall comply with the regulation.