1、 輸送帶接頭為什么容易開裂、斷開？
1. Why are conveyor belt joints easy to crack and break?
輸送帶接頭處的強度比正常帶體的強度要低。一般用機(jī)械方式連接時，接頭強度僅能達(dá)到帶體強度的40-50%，冷膠方式質(zhì)量比較好時，接頭強度能達(dá)到60-70%，而熱膠接頭強度能達(dá)到80-90%（接頭方法正確、無質(zhì)量缺陷）。由于接頭部位的強度比較低，如果膠接方法不正確，接頭的強度就會更加低，如開刀，打磨時傷及下一層布、打磨過度、搭接長度不夠、臺階個數(shù)不夠、膠接頭所用橡膠性能不好或已經(jīng)自硫失效、鋼絲繩打磨過度、鋼絲繩生銹等，接頭部委的強度將會大打折扣，在使用時，容易出現(xiàn)開裂（面膠部位）。
The strength of belt joint is lower than that of normal belt. Generally, the joint strength can only reach 40-50% of the belt strength when the mechanical connection is used. When the quality of cold glue is better, the joint strength can reach 60-70%, and the strength of hot glue joint can reach 80-90% (the joint method is correct and there is no quality defect). Because the strength of the joint is relatively low, if the bonding method is not correct, the strength of the joint will be even lower, such as cutting, damaging the next layer of cloth when grinding, excessive grinding, insufficient lap length, insufficient number of steps, poor performance of the rubber used in the rubber joint or self sulfur failure, excessive grinding of wire rope, rust of wire rope, etc. the strength of the joint will be greatly reduced When used, it is easy to crack (glue part).
2、 輸送帶打滑是由于什么原因？
2. What is the reason for the belt slipping?
輸送帶正常運轉(zhuǎn)時，帶速不低于滾筒轉(zhuǎn)速的95%。如果滾筒與輸送帶的摩擦力不夠，輸送帶就容易出現(xiàn)打滑現(xiàn)象。引起滾筒與輸送帶摩擦力不夠的原因很多，常見的有：張力不夠、載荷啟動、滾筒表面摩擦系數(shù)不夠等。
When the conveyor belt is in normal operation, the belt speed shall not be lower than 95% of the drum speed. If the friction between the roller and the conveyor belt is not enough, the conveyor belt is prone to slip. There are many reasons for insufficient friction between roller and conveyor belt, such as insufficient tension, load starting, insufficient friction coefficient of roller surface, etc.
張力不夠的原因有：張緊行程不夠、配重重量不夠、輸送帶太長等；
The reasons for insufficient tension are: insufficient tension stroke, insufficient counterweight, too long conveyor belt, etc;
滾筒表面摩擦系數(shù)不夠的原因有：滾筒表面包膠磨損太大、帶體過濕或粘有潤滑油、帶體表面粘有物料（易被水溶漲的）。
The reasons for the insufficient friction coefficient of the roller surface are: too much rubber coating wear on the roller surface, too wet or sticky with lubricating oil on the belt body, and sticky materials on the belt body surface (easily dissolved by water).
3、 膠接用膠料、膠漿儲存有哪些要求？
3. What are the requirements for the storage of adhesive and glue?
膠片、膠漿應(yīng)保存在陰暗、干燥的地方，避免陽光直接照射、避免各種輻射，并遠(yuǎn)離火源。
The film and glue should be kept in a dark and dry place to avoid direct sunlight, radiation and fire.
膠片、膠漿應(yīng)避免保存在灰塵較大的場所，避免各種化學(xué)物品與其相接觸。
The film and glue should not be stored in the place with large dust and avoid the contact of various chemicals.
保存膠片、膠漿的環(huán)境濕度50-75%，溫度應(yīng)不低于5℃，不超過35℃。
The humidity of the environment for storing film and glue should be 50-75%, and the temperature should not be lower than 5 ℃ and not exceed 35 ℃.
膠片、膠漿的保存期：夏季1個月、冬季2個月、春季1個月。
Storage period of film and glue: 1 month in summer, 2 months in winter and 1 month in spring.
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