Nickel-chromium-molybdenum alloy automatic surfacing technology for diesel engine cylinder head for ship

A technology of nickel-chromium-molybdenum alloy and marine diesel engine, which is applied in the field of welding processing to achieve the effect of increasing wire feeding speed, reducing welding consumables consumption, and reducing workload

Inactive Publication Date: 2010-11-17
CSSC MES DIESEL
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to overcome the deficiencies of the existing marine diesel engine cylinder head manual surfacing welding method, and provide a nickel-chromium-molybdenum alloy automatic surfacing welding process method for the marine diesel engine cylinder head, which chang

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  • Nickel-chromium-molybdenum alloy automatic surfacing technology for diesel engine cylinder head for ship
  • Nickel-chromium-molybdenum alloy automatic surfacing technology for diesel engine cylinder head for ship
  • Nickel-chromium-molybdenum alloy automatic surfacing technology for diesel engine cylinder head for ship

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Embodiment Construction

[0042] The nickel-chromium-molybdenum alloy automatic surfacing process method of the marine diesel engine cylinder head of the present invention is used for the surface strengthening processing of the fuel injection area P of the combustion chamber 11 of the cylinder head 1, see figure 1 , the fuel injection area P is the main impact and high temperature area of ​​the cylinder head 1, and is composed of 2 to 3 fan-shaped curved surfaces evenly distributed on the inner wall of the combustion chamber 11. When using corrosion-resistant alloys (such as nickel-chromium-molybdenum alloys) for surface strengthening processing, the traditional manual surfacing welding process requires relatively high skill requirements for operators. The present invention uses an automatic surfacing machine instead of a manual method to realize the surfacing process operation. The automatic surfacing machine includes a rotary table 5 that can swing and rotate and a numerically controlled welding machi...

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Abstract

The invention discloses a nickel-chromium-molybdenum alloy automatic surfacing technology for a diesel engine cylinder head for a ship, which is used for surface hardening machining of a diesel jetting area of a combustion chamber of a cylinder head. In the technology, an automatic surfacing machine is used to carry out surfacing hardening of the nickel-chromium-molybdenum alloy on the surface of the diesel jetting area of the combustion chamber of the cylinder head with one surfacing layer, wherein the automatic surfacing machine comprises a rotating worktable which can swing and rotate and a numerical control soldering machine of which the position of a soldering gun can be adjusted. The invention changes the conventional manual surfacing mode, and realizes the automation of the nickel-chromium-molybdenum alloy surfacing technology for the cylinder head, thereby reducing the labor intensity, simplifying the technological steps, shortening the machining period and decreasing the consumption of soldering materials.

Description

technical field [0001] The invention relates to a welding processing method, in particular to a nickel-chromium-molybdenum alloy automatic surfacing welding process method for the cylinder head of a large marine diesel engine. Background technique [0002] The cylinder head is one of the important parts of the high-power low-speed marine diesel engine, which together with the cylinder liner, piston head and exhaust valve constitute the combustion chamber of the diesel engine. Because the atomization and combustion of diesel oil are carried out in the combustion chamber, the working conditions of the cylinder head are relatively harsh, and it has to bear great thermal and mechanical stress, especially the area where the inner wall of the combustion chamber of the cylinder head is located at the injection point of the fuel valve. It is to withstand the impact of high-temperature and high-pressure gas, so in the processing of the cylinder head, this area must be surfacing with ...

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Application Information

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IPC IPC(8): B23K9/04B23K9/235B23K9/32B23K37/047
Inventor 胡新成王巍朱卫军何福远王军徐云天尤理钢徐鑫华
Owner CSSC MES DIESEL
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