对于端子线测验者来说，表面并不是件容易的事，重要表面测验的标准不大好掌握，统一件产品由不一样的查验员从事测验，就可能获得不一样的结论。虽然如斯，只要我们当真学习掌握好标准，接续积聚阅历，需要时可借助标准样从事测验，就能够搞好产品的表面测验。小编为大家介绍一下：条件测验圆整水平，是不是有折边、错圆、裂纹、夹杂物、扭结等缺陷和重大的机械毁伤斑疤、麻坑、起皮、飞边、腐蚀黑点等。表面是不是光洁，有没有三角口、毛刺、裂纹、折叠及夹杂物和重大的斑疤、麻坑、机械毁伤的腐蚀黑点等现象。值得提出的是还有铜线的氧化水平，普通金黄色为正常，淡赤色为轻微氧化，表面呈深赤色、蓝色时为重大氧化，凡是表现出重大氧化的现象应判为废品办理。铝线在制作进程中表现出道子现象比较多，做架空输电线时应严加节控铝较线表面，导线应绞合紧密整洁，不可有疏松，单线的扭结、单线的跳出或突出及单线的断裂征象等。别的，在单线的接头焊接处应该圆整且焊接已条件做防腐办理，接头处增大部分普通不准跨越该直径公差的两倍，单线接头两焊接处间距长度也要满足标准，统一单线两焊接处应不小于15米，统一层非统一根单线两焊接处的间距内层不小于5米，外层不小于15米，铜芯为单根铜线时，不答应焊接。端子线的表面布局尺寸端子线的表面、布局尺寸的测验普通都是穿插或同时从事的，产质量量的优劣，一方面看其机能是不是良好，但其表面、布局尺寸的质量也占必定的比例，产品的表面、布局尺寸对端子线的机能是有干扰的。

1.局部拉细，引起局部发烧，电阻加大，加快绝缘的老化。

2.氧化锈黑点，干扰导体接头，电阻加大，绝缘容易老化。

3.碰伤或划伤干扰导体的机械强度。

端子线的表面测验是测验制品、半制品或资料的表面现象，尺寸测验是按产品标准规定的各部尺寸来审核每根产品。布局测验是指对端子线的各构成部分的布局从事测验，表面测验如铜丝的氧化疑难对端子线质量是有干扰的，尺寸是能够直接干扰产品的机能，如导体的外径和其电阻有关；绝缘厚度和电阻与耐压水平有关；绞线节距和产品的柔软性、牢固水平有关。测验能够露出端子线的制作质量，觉得出产进程中存在的疑难，因此说，节控表面、布局尺寸是产品机能的保证。

For the Terminal Line Tester, the surface is not an easy thing, important surface test is not easy to grasp the standard, a unified product by different inspectors to test, may be different conclusions. Although such, as long as we really learn to master the standards, continue to accumulate experience, need to be able to use standard samples to engage in the test, we can do a good product surface test. Small series for you: The condition test rounding level, whether there is a fold edge, wrong circle, cracks, inclusions, kinks and other defects and major mechanical damage scars, pits, peeling, flash, corrosion black spots. Surface is not smooth, there is no triangular mouth, burrs, cracks, folding and inclusions and significant scars, pits, mechanical damage corrosion black spots and so on. It is worth pointing out that there is also the oxidation level of copper wire, the ordinary golden yellow is normal, the light red is slight oxidation, the surface is deep red, blue is significant oxidation, any phenomenon that shows significant oxidation should be judged as waste. Aluminum wire in the production process shows a lot of channel phenomenon, do overhead transmission lines should be strictly controlled aluminum surface, wire should be tightly twisted neat, not loose, single-line Kink, single-line jump or prominent and single-line fracture signs, etc. . In addition, the single-wire joints should be round and welded in the condition of anti-corrosion treatment, the joint is not allowed to cross the larger part of the diameter of the general tolerance of twice, the single-wire joints of the distance between the two joints also meet the standards, not less than 15m for the two welded joints of the unified single wire, not less than 5m for the inner layer and not less than 15m for the outer layer of the non-unified single wire and two welded joints, and not allowed to weld when the copper core is a single copper wire. The surface layout dimensions of terminal wires the surface and layout dimensions of terminal wires are usually tested by inserting or at the same time. On the one hand, the quality of production depends on whether its function is good or not But its surface, the quality of layout size also accounts for a certain proportion, the surface of the product, layout size on the function of the terminal line is interference. 1. Local pulling thin, cause local fever, resistance increase, accelerate the aging of insulation. 2. Oxidation rust black spot, interference conductor joint, resistance increase, insulation easy aging. 3. Bumps or scratches interfere with the mechanical strength of the conductor. Terminal Wire surface test is to test the product, half-product or data surface phenomenon, size test is in accordance with the product standards for the size of each part to audit each product. The layout test is a test of the layout of the components of the terminal wire. Surface tests such as oxidation of copper wire interfere with the quality of the terminal wire. Size can directly interfere with the function of the product For example, the outer diameter of conductor is related to its resistance, the insulation thickness and resistance are related to the voltage level, and the pitch of Strand is related to the softness and firmness of the product. Test can expose the production quality of Terminal Wire, feel the production process of the problem, therefore, said that the control surface, layout size is the product function guarantee.