Processing method of wear-resisting workpiece for concrete conveying device and wear-resisting workpiece
A processing method and technology of a conveying device are applied in the treatment of wear-resistant workpieces for concrete conveying devices, and in the field of wear-resistant workpieces, and can solve problems such as shortening the life of the workpieces.
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Embodiment 1
[0062] See figure 1 , is a schematic cross-sectional view of the wear-resistant workpiece provided by Example 1 of the present invention. Such as figure 1 As shown, the wear-resistant workpiece 11 is a wear-resistant plate for a concrete pump truck. The working surface 11a of the wear-resistant workpiece 11 needs to bear the friction and impact from other media 21. Other media can be cement or cinder, etc., in order to To improve the wear resistance of the wear-resistant surface 11a of the wear-resistant workpiece 11, it is necessary to carry out overall hardening treatment on the wear-resistant workpiece.
[0063] The method for processing the wear-resistant workpiece 11 includes the steps of:
[0064] The wear-resistant workpiece 11 processed into a flat plate is heated to 830° C. for 1 hour, so that the wear-resistant workpiece is uniformly austenitized, and then quenched. The cooling method is oil cooling, and the measured surface hardness of the workpiece is HRC60.
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Embodiment 2
[0075] See figure 2 , is a schematic cross-sectional view of the wear-resistant workpiece provided by Example 2 of the present invention.
[0076] Such as figure 2 As shown, the wear-resistant workpiece 12 is a straight pipe delivery pipeline used on a concrete pump truck, the thickness of the pipe wall is 5.5mm, and the pipe fitting 12 is used as a delivery pipe for pumping concrete, and the material is 65Mn. When delivering concrete, it is necessary to make the inner surface of the pipe wall have a high hardness, so as to ensure the wear resistance of the inner surface of the pipe fittings.
[0077] The preparation of the workpiece in this embodiment includes the following steps:
[0078] The workpiece processed into a tubular shape is heated to 840°C for 1.5 hours with an induction coil, so that the workpiece is uniformly austenitized and then quenched. The cooling method is oil cooling. The outer hardness of the tube wall is 61HRC, and the inner surface hardness is HR...
Embodiment 3
[0093] See image 3 , is a schematic cross-sectional view of the workpiece provided by Embodiment 3 of the present invention. Such as figure 2 As shown, the workpiece is an elbow-shaped workpiece 13, which is used as a concrete delivery pipeline on a concrete pump truck. The cross-section of the elbow-shaped workpiece 13 is circular, and the thickness of the pipe wall is 12mm. The radius R is 240mm. The curved pipe-shaped workpiece is used as a delivery pipe for pumping concrete, and the material is 65Mn. When pumping concrete, the inner surface of the pipe wall must have a high hardness, so as to ensure the wear resistance of the inner surface of the pipe fittings. sex.
[0094] In this embodiment, the preparation of the elbow-shaped workpiece comprises the following steps:
[0095] The bent tube-shaped workpiece was heated to 850°C for 1.5 hours, so that the workpiece was uniformly austenitized and then quenched. The cooling method was oil cooling. The outer hardness of ...
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Abstract
Description
Claims
Application Information
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