multi pass welding

简明释义

多层焊

英英释义

例句

1.In the construction of bridges, multi pass welding 多道焊接 is often necessary to meet safety standards.

在桥梁建设中，通常需要进行多道焊接 multi pass welding以满足安全标准。

2.For underwater welding projects, multi pass welding 多道焊接 provides better durability against corrosion.

对于水下焊接项目，多道焊接 multi pass welding提供了更好的抗腐蚀耐久性。

3.The engineer recommended using multi pass welding 多道焊接 for the thick steel plates to ensure a strong joint.

工程师建议对厚钢板使用多道焊接 multi pass welding以确保连接强度。

4.Using multi pass welding 多道焊接 allows for better heat distribution, reducing the risk of warping.

使用多道焊接 multi pass welding可以更好地分配热量，减少变形的风险。

5.The technician explained that multi pass welding 多道焊接 can help achieve a smoother finish on the weld bead.

技术员解释说，多道焊接 multi pass welding可以帮助焊缝获得更光滑的表面。

作文

In the field of welding, the term multi pass welding refers to a technique where multiple passes are made over a joint to achieve a strong and durable weld. This method is particularly important in situations where the thickness of the materials being joined is significant. Unlike single pass welding, which may be sufficient for thin materials, multi pass welding allows for deeper penetration and better fusion between the base metals. One of the primary advantages of multi pass welding is its ability to handle thicker sections of metal. For example, in industries such as shipbuilding, construction, and manufacturing, components are often made from thick steel plates that require substantial weld strength. By applying several layers of weld material, the welder can ensure that the joint can withstand the stresses and loads it will encounter during its service life. Additionally, multi pass welding provides greater control over the heat input during the welding process. Each pass can be adjusted to optimize the heat distribution, reducing the risk of warping or distortion in the materials being welded. This is crucial in applications where precision is key, such as in aerospace or automotive industries. However, multi pass welding is not without its challenges. It requires skilled welders who can maintain consistency across multiple passes. The welder must carefully monitor the interpass temperature to avoid issues such as cracking or incomplete fusion. Furthermore, the cleaning of the weld surface between passes is essential to ensure good adhesion and prevent contamination. In conclusion, multi pass welding is a vital technique in the welding industry that allows for the joining of thick materials with high strength and durability. Its advantages in controlling heat input and ensuring strong bonds make it a preferred method in various applications. As technology advances, we can expect to see improvements in multi pass welding techniques, leading to even more efficient and reliable welding processes.

在焊接领域，术语多道焊接指的是一种在接头上进行多次焊接以实现强大且耐用的焊缝的技术。这种方法在需要连接的材料厚度较大时尤其重要。与单道焊接不同，单道焊接可能足以应对薄材料，多道焊接允许更深的渗透和更好的母材熔合。

多道焊接的主要优点之一是能够处理较厚的金属部分。例如，在造船、建筑和制造等行业中，组件通常由厚钢板制成，这些钢板需要相当大的焊接强度。通过施加几层焊接材料，焊工可以确保接头能够承受在其使用寿命中遇到的应力和负荷。

此外，多道焊接在焊接过程中提供了更好的热输入控制。每道焊接都可以进行调整，以优化热分布，从而减少材料在焊接过程中的翘曲或变形风险。这在航空航天或汽车工业等精密应用中至关重要。

然而，多道焊接并非没有挑战。它需要熟练的焊工能够在多道焊接之间保持一致性。焊工必须仔细监控道间温度，以避免出现裂纹或熔合不完全等问题。此外，在焊接之间清洁焊接表面对于确保良好的附着力和防止污染至关重要。

总之，多道焊接是焊接行业中的一种重要技术，能够将厚材料以高强度和耐久性连接在一起。它在控制热输入和确保强大结合方面的优势使其成为各种应用中的首选方法。随着技术的进步，我们可以期待看到多道焊接技术的改进，从而导致更高效和可靠的焊接工艺。