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1. Arcing:火花/电弧 (a) Arcing is the flow of electricity between two points where there is a break in the circuit. 火花/电弧是在断开的电路两端产生的放电现象。 (b) Arcing usually occurs near the window bus bars. 常发生在风挡汇流庄的附近。 (c) You can identify the heat damage caused by arcing, as follows: 火花/电弧能导致以下热损伤： 1) Brown or black burn marks in the interlayer. 在内层出现棕褐色或黑色燃烧痕迹。 2) Cracks in the windshield face ply. 在风挡玻璃表面层的裂纹。 2. Bubbles:鼓泡 (a) Too much window heat can cause small bubbles in the vinyl core. 长时间的加热将引起乙烯树脂层小的鼓泡。 3． Chips:碎裂 (a) Chips are pieces of acrylic or glass broken from the surface. 碎裂是树脂层或玻璃表面的破碎。 (b) Chips usually occur at the front part of the window. 碎裂常发生在风挡前部分。 (c) Spall (shell-type) chips: 碎片（贝壳型）碎裂 1) Spall chips are circular with many fine ridges. 碎片式碎裂是圆环型细条纹褶皱。 2) The ridges in the chip follow the outer edge and get smaller and deeper near the center and give it the clamshell appearance. 碎片的褶皱沿外边缘开始，越靠近中间，就越小、越深，且呈现哈壳状。 3) Spall chips do not usually cause structural failure of the windshield. 碎裂碎片不会引起风挡结构损坏。 4． Cracks:裂纹 (a) A crack is a fissure that has a visble width or depth. 裂纹是可见深度或宽度的裂缝。 (b) Cracks can start from a scratch or craze mark (acrylic windows only). 裂纹由擦伤/刮伤或细缝引起的（仅出现在有机玻璃上）。 (c) Cracks can be single or dual. 裂缝可能是单一或双重的。 (d) Cracks in glass will usually occur about 90 degrees to the angle to the surface of the pane and can become in-plane cracking. 裂纹通常在玻璃表面形成90度夹角，并也能变成内裂纹。 (e) Cracks can occur in the iterlayers between the glass or acrylic panes. They are usually caused by stress in unheated areas.
裂纹能出现在玻璃或有机玻璃夹层，通常是由非加温区域应力造成的。(f) Cracks in the interlayer usually occur in the window corners near the edges of the release tape. 夹层裂纹通常在开放形边缘附近的风挡角发生。 1) Interlayer cracks are not a problem structurally. 夹层裂纹不影响结构强度。 5．Crazing (acrylic panes only):龟裂（仅在丙烯酸树脂层） (a) Crazing is many very fine fissures with no visible width or depth at the surface of a pane.龟裂：很多细小裂缝，在表面宽度与深度不明显。 (b) Crazing will start to be noticeable when the depth of the cracks are 0.002 to 0.004 inch.当裂纹深度达到0.002-0.004英寸时，就能看见。 (c) In dim light, and light normal to the surface, crazing is difficult to see. 在昏暗光线和灯光下看表面，龟裂是不同的。 (d) In a bright light shown from an angle to the surface, crazing looks frosted and appears to light up. 在明亮光线下，以不同角度看表面，龟裂看上去象盖了一层霜，且反光。 (e) Crazing often develops into cracks.龟裂常会发展成裂纹。 6． Delamination:分层 (a) Delamination is the separation of a ply or plies from the interlayer. 分层：在夹层内的一分离层。 (b) Delamination can appear as a flat smooth air bubble with either a circular edge or smooth finger-like projections in the window. 分层看上去象一平滑气泡，边缘成弧圆状，或象手指发射状。, (c) In reflected light, delamination at the coating surface is seen as shiny blue gold, or brown areas.在光反射下，在涂层表面的分层看上去发蓝/黄或棕褐光。 (d) In transmitted light, delamination at the coating surface is seen as brown areas. 在光照射下，分层成棕褐色。 (e) Delamination between the interlayer and the outer glass pane is usually not found until they move into the coating area. 在外层玻璃和夹层之间分层不易发现，除非发展到涂层内。 (f) Replace the window if delamination limits your vision. 如分层影响视线，更换玻璃。 NOTE: Delamination may result in arcing and glass fracture.It is recommended that windows with delamination extending beyond 3.50 inches (89 mm) from the edge of the window be replaced. 分层导致电火花和玻璃破裂，从玻璃边缘向外发展到3.50英寸（89mm）时，建议更换。 (g) Delamination will not cause structural failure of the No. 3 window assembly. 分层不会影响3#风挡玻璃结构强度。 (h) Delamination at the coating surface may prevent correct operation of the window heat system.涂层表面分层会影响风挡加温系统正常工作。 (i) Delamination and window heat may also cause cracks in the outer glass pane. 在外层玻璃内分层并风挡加温时，会导致裂纹。 7．In-Plane Cracking (acrylic plies only): 内裂纹（仅在丙稀酸树脂层） (a) In-plane cracking is also identified as delamination.内裂纹也称为分层。 (b) In-plane cracking is a crack that grows parallel to the surface of the pane from an edge or crack. 内裂纹是平行发展的裂纹，从玻璃边缘或裂纹发展至表面。 (c) In-plane cracking looks like delamination but will not have the finger-like projections.内裂纹看上去向分层，但不会成指型发射状。 8．Scratches:刮伤/擦伤 (a) A scratch is the removal of material from the surface of the window. 刮伤/擦伤：从玻璃表面刮掉玻璃材料。 (b) Scratches usually occur in a straight line or slight curve. 刮伤通常成直线或轻微弯曲。 (c) The depth of a scratch is not usually greater than the width of the scratch.
刮伤深度通常大于其宽度。 | 
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发表于 2011-9-14 21:20:15
