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焊接技术是电子制作的一项基本功,中学劳技课教学大纲中规定,应使学生:学会使用电烙铁,掌握一般的焊接方法。焊接技术主要包括:刮、搪、焊等工序。 1.焊接的准备工作首先必须检查用电设备及电烙铁的绝缘性能是否良好,防患于未然;同时也要制定应急措施,尤需严格要求学生遵守纪律,因为学生不遵守纪律是最大的事故隐患,其次要备好焊料(一般用焊锡丝),烙铁架、焊料盒、助焊剂(一般用松香)、剥线钳、桃形钳、镊子等。电铬铁的选用应视焊件大
Welding technology is a basic work of electronic production, secondary school technical courses in syllabus provides that students should: learn to use electric iron, master the general welding methods. Welding technology include: scraping, enamel, welding and other processes. 1. Preparation of welding must first check the electrical equipment and electric iron insulation is good, take preventive measures; but also to develop emergency measures, especially students should strictly comply with discipline, because students are not subject to discipline is the largest accident Hidden troubles, followed by the preparation of solder (generally with solder wire), iron frame, solder box, flux (usually rosin), wire strippers, peach-shaped pliers, tweezers and so on. The selection of electric ferrochromium should be regarded as large welding