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发明授权
CN101941112B 液压缸缸体的窄间隙MAG自动焊接工艺 失效 - 权利终止

液压缸缸体的窄间隙MAG自动焊接工艺
摘要：
一种液压缸缸体的窄间隙MAG自动焊接工艺，其特征在于依序包括以下步骤：上料→卡盘卡紧→组对→顶紧尾座顶紧→台车行走→焊枪位置微调→焊接→台车行走→下料。其优点为，大大缩小了焊缝体积，节省了焊丝消耗量，减少了工件的应力损伤和变形；由于热输入低，可防止焊缝金属裂纹，并可消除在磁力热处理过程中产生的裂纹；焊缝晶粒细小、韧度好；该焊接工艺具有高的熔敷速度，低的飞溅和电弧磁偏吹，能够获得焊道形状好、质量高、外形美观的焊缝，并且不产生噪声及有害气体，生产率高，操作简单，易于实现机械化和自动化。
摘要（英）：

The invention relates to an automatic wielding technology of a narrow gap MAG of a hydraulic cylinder body, which is characterized by comprising the following steps: materials loading, cartridge chucking, assembly, tailstock propping tightly, trolley walking, welding gun position trimming, welding, trolley walking and baiting. The invention has the advantages that the technology greatly reduces welding line volume, saves solder wire consumption, and lowers stress damage and deformation of workpieces; as heat input is low, welding line metal flaw can be prevented, and flaw generated in the process of magnetic heat treatment can be eliminated; the welding line grain is fine and good in tenacity; and the welding technology has high cladding speed and low splash and arc blow, can obtain the welding line with good weld bead shape, good quality and beautiful appearance, does not generate noise and harmful gas, has high production rate and simple operation, and is easy to achieve mechanization and automation.

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