Wear-resistant layer production process for flow passage component of cutter-suction dredger
A technology for cutter suction dredger and overcurrent components, which is applied in the field of ship dredging, can solve the problems of increasing the downtime of dredgers, increasing replacement and maintenance costs of spare parts, etc., so as to save materials, ship repair time, and improve repairs Efficiency and the effect of reducing the amount of work
Active Publication Date: 2020-09-04
烟台翊德船舶维修有限公司
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Problems solved by technology
The wear and tear of wetted parts not only increases the cost of replacement and maintenance of spare parts, but also increases the downtime of the dredger
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[0027] Such as Figure 1-Figure 3 As shown, the present invention provides a process for producing a wear-resistant layer for flow-through parts of a cutter suction dredger, which includes the following steps:
[0028] S1. Preparation of wear-resistant block 1, which includes:
[0029] S101. Cut the No. 45 steel plate into several trapezoidal steel plates according to the required size, and cut the corners of each trapezoidal steel plate vertically. Among them, No. 45 steel is made of No. 45 steel with a low phosphorus flow residual value. The cut length at each corner of the trapezoidal steel plate is 80%-90% of the thickness of the trapezoidal steel plate, and the cutting angle is 45°.
[0030] S102: Anneal the cut trapezoidal steel plate, heat the trapezoidal steel plate to 900°C, keep it for 2 hours, and cool it naturally to room temperature.
[0031] S103. Punch positioning hole 2 on the center of each trapezoidal steel plate after annealing treatment. Use a 60mm drill bit to re...
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The invention relates to a wear-resistant layer production process for a flow passage component of cutter-suction dredger. The production process comprises the steps of S1, preparation of wear-resistant blocks, and S2, laying of a wear-resistant layer. In the step S1, the preparation of the wear-resistant blocks comprises the following steps: S101, cutting a steel plate into a plurality of trapezoidal steel plates, and vertically cutting each corner of each trapezoidal steel plate; S102., annealing the cut trapezoidal steel plate; S103, punching the center of each trapezoidal steel plate afterannealing treatment, and machining grooves around punching holes, and then stamping and forming to obtain the steel plate with the double curvature radian; and S104, sequentially carrying out quenching and tempering treatment on the steel plate with the double curvature radian to obtain the wear-resistant blocks. In the step S2, the laying of the wear-resistant layer comprises the following stepsthat all the wear-resistant blocks are spliced to form the wear-resistant layer, and square holes are formed in the periphery of the wear-resistant blocks after splicing of the wear-resistant blocks,seams are formed at the splicing positions, and positioning holes, the square holes and the seams of all the wear-resistant blocks are sequentially welded, so that the wear-resistant block are fixedto the inner wall of the flow passage component of the cutter-suction dredger. According to the wear-resistant layer production process, the wear-resistant layer is laid on the inner wall of the flowpassage component, so that the wear-resistant performance and the service life of the cutter-suction dredger are improved.
Description
Technical field [0001] The invention relates to the technical field of ship dredging, in particular to a production process of a wear-resistant layer for flow-through parts of a cutter suction dredger. Background technique [0002] Cutter suction dredger is an important equipment for dredging. It is easy to encounter soil or boulders with high hardness, coarse grain size and sharp edges during operation. Most of them are dolomite and sandy pebbles. The wear and tear of the flow parts of the mudboat is very serious. The wear and tear of the overcurrent components not only increases the replacement and maintenance costs of spare parts, but also increases the downtime of the dredger. Therefore, how to improve the wear resistance and service life of the cutter suction dredger is a major problem that needs to be solved urgently in the field of dredging. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a wear-resistant layer o...
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 李庆德孙合臣李建山钱晓劲张立国王红波孙志超王国伟闻腾肖晓龙李宗超
Owner 烟台翊德船舶维修有限公司
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