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Showing posts from October, 2020

straightening-of-cylinder-piston-rod

  Hydraulic cylinder barrel  and cylinder  piston rod  due to the accident after bending, generally to be straightened on the pressure machine. However, the cylinder or piston rod straight after the colonel of the press will often rebound after a period of time, that is, the cylinder or piston rod to a certain extent to restore the original shape. For this reason, some repair shop after a long time of exploration, developed a long cylinder bending straightening machine . When in use, put the bent cylinder or piston rod into the straightening machine, press the clamping wheel, start the motor and roll it back and forth. Adjust the clamping wheel continuously according to the situation, and straighten the bending cylinder or piston rod slowly. This is different from the straightening in the pressure machine, straightening in the straightening machine, not only can straighten the bending part, and cylinder cylinder or piston rod because of bending the internal stress can be released under

production process of hollow chrome bar

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  Hollow Chrome Bar (Chrome Plated Tubing):Internal Honed with External Hard Chromium Plate Tube .Suitable for Elevator Cylinder, Telescope Cylinder, Scaling Ladder, Agriculture Machines, Earthwork Machines, etc..hollow bar not only owns normal characteristics of hard chrome plated steel bar, but also has the advantage of reducing the loaded weight of machine due to the hollow shape. Material:STKM13A、STKM13C、SAE1020、SAE4140、ST52、CK45 External Diameter Accuracy:f7、f8、g6 Thickness of Chrome Layer:<Φ20 15μm min. ≧ Φ20 20μm min. Hardness of Chrome Layer: HV850 min. (0.1) Surface Roughness:Ra 0.2μm max.   Production Precess Of  Chrome Plated Bar   添加图片说明

Rolling process of CK45 hard chrome plated steel tube

 Rolling processing is a kind of chipless processing that uses the plastic deformation of metal at room temperature to flatten the microscopic unevenness of the surface of the workpiece to achieve the purpose of changing the surface structure, mechanical characteristics, shape and size. Therefore, this method can achieve both smoothing and strengthening purposes at the same time, which is impossible for grinding. Generally, the surface of the CK45 hard chrome plated steel tube material should be pickled first and then inspected. The slight defects of the honed tube can be repaired. To repair and honing the outer surface defects of the pipe, peeling lathe, centerless grinder, portable or hanging grinder can be used. Honing uses one or more whetstones installed on the circumference of the honing head, and the whetstone is expanded radially by an expansion mechanism (both rotary and push types) to press it against the wall of the workpiece hole. Produce a certain surface contact. At th

Advantages of chromed piston rods and heat treatment

Chromed piston rods  are manufactured to meet the needs of the market. They have the guiding function of sliding bearings and can realize the linear motion of objects. The prerequisites for these linear motion systems are: simple design, quick execution capability, low maintenance cost, strict selection of durable materials, high frequency heat treatment, accurate outer diameter size, roundness, straightness and Surface treatment, etc.   Due to the poor rigidity of the precision piston rod itself, many unexpected problems occur during the turning process. The slender shaft of the car is a difficult machining process. Although the slender shaft of the car is more difficult, it also has certain regularity. It mainly grasps the use of the center frame and the tool holder, solves the thermal deformation elongation of the workpiece and rationally selects the geometry of the turning tool. It was solved.   In order to prevent the thermal deformation of the precision piston rod, the following