焊

• 拼音: hàn
• 汉字拆解: 焊 = 火 (fire radical, indicating heat process) + 旱 (phonetic component providing the sound 'hàn')

含义

To weld; to solder — to join metal or other materials by melting and fusing them together using heat.

Used in manufacturing, construction, and engineering contexts. Common compounds: 焊接 (welding, the process), 焊缝 (weld seam), 焊枪 (welding torch), 电焊 (electric welding), 气焊 (gas welding). In formal technical writing, 焊接 is preferred over the bare character 焊.

例句

1. 工人们使用先进的自动化设备，将数百个金属构件精密地焊合为一体，确保桥梁结构的整体稳固性。
2. 这条生产线上的机器人臂能够以极高的精度完成焊接作业，生产效率是人工焊接的十倍以上。
3. 技术员仔细检查了每一条焊缝，发现其中两处存在气孔缺陷，需要重新打磨后补焊处理。

用法指南

语境: manufacturing, construction, engineering, metalwork

语气: neutral

正确说法

• 为了确保压力容器的安全性，所有焊接部位均须经过无损检测，并由持证焊工签字确认。(To ensure the safety of pressure vessels, all welded joints must undergo non-destructive testing and be signed off by a certified welder.)
• 车间里飞溅的焊花和弥漫的烟雾提醒工人必须严格佩戴防护面罩和手套，以避免职业伤害。(The flying welding sparks and pervasive fumes in the workshop remind workers that they must strictly wear protective masks and gloves to avoid occupational injuries.)

错误说法

• 焊 alone in formal technical writing when precision is required — use the compound 焊接 for the process; 焊 alone can sound incomplete in engineering documentation

起源与历史

焊 = 火 (fire radical) + 旱 (phonetic component, 'hàn') — using fire to harden and join metal

文化背景

世代: All ages

社会背景: Universal