傳送帶不可避免地發(fā)生在應(yīng)用的過程中各種各樣的損傷,如材料處理與各種條混合的過程中邊工具,隨時可能導(dǎo)致縱向掑裂紋嵌入到傳送帶上。(特別容易發(fā)生在管狀輸送帶和鋼輸送帶上)或使用機(jī)械膠帶口脫落、托輥損壞、鋼絲繩芯外露、進(jìn)料擋板損壞等，導(dǎo)致輸送帶跑脫，可引起輸送帶縱向撕裂。橡膠修補(bǔ)比硫化修補(bǔ)更容易修復(fù)上述缺陷，速度更快，更經(jīng)濟(jì)。橡膠修補(bǔ)劑是一種預(yù)聚堿類化合物，在室溫下為雙組分液體。按比例混合后自硫化成聚胺酯橡膠，在室溫下固化成型。與輸送帶、金屬本體結(jié)合良好，具有高彈性、高耐磨性、高韌性。
Conveyor belts inevitably suffer from various kinds of damage in the process of application, such as material handling and various mixing tools, which may lead to longitudinal pinching cracks embedded in the conveyor belt at any time. (especially easy to occur on tubular conveyor belts and steel conveyor belts) or the use of mechanical belt outlet fall off, roller damage, steel wire core exposure, feed baffle damage, etc., leading to belt run off, can cause longitudinal tear of conveyor belts. Rubber repair is easier to repair these defects than vulcanization repair, faster and more economical. Rubber repair agent is a prepolymer alkali compound, which is a two-component liquid at room temperature. Polyurethane rubber was cured at room temperature after mixing proportionally. It has good combination with conveyor belt and metal body, high elasticity, high wear resistance and high toughness.
修復(fù)過程分為三個步驟:
The repair process is divided into three steps:
表面處理。表面涂覆的目的是使修復(fù)劑與輸送帶骨架更好地粘結(jié)。成功修復(fù)的關(guān)鍵是將破口磨成60-90度的槽，并清洗表面。操作時應(yīng)根據(jù)損壞情況切成不同的槽。好是用砂輪打磨，用清洗液(如丙酮)清洗。
Surface treatment. The purpose of surface coating is to make the repairing agent bond better with the conveyor belt skeleton. The key to successful repair is to grind the break into 60-90 degree grooves and clean the surface. In operation, different grooves should be cut according to the damage. It is best to grind with a grinding wheel and clean with a cleaning solution (such as acetone).
膠水和修復(fù)。選擇液體形式的修復(fù)劑，將樹脂與固化劑按比例混合，攪拌均勻后涂于破損口。一般來說，固化時間從幾分鐘到十分鐘以上。修復(fù)工作必須在固化前完成。凹槽要大一些，以便修復(fù)劑能粘住未損壞的覆蓋膠。
Glue and repair. Choose liquid repair agent, mix resin and curing agent in proportion, mix evenly and then coat the damaged surface. Generally speaking, the curing time is from a few minutes to more than ten minutes. Repair work must be completed before curing. The groove should be larger so that the repairing agent can adhere to the undamaged covering glue.
養(yǎng)護(hù)養(yǎng)生。該修復(fù)劑在坡口自硫化，以獲得其物理化學(xué)性質(zhì)和與基體的粘結(jié)效果。一般在室溫下數(shù)小時數(shù)天，初數(shù)小時進(jìn)行基礎(chǔ)養(yǎng)護(hù)，可達(dá)到70%-80%的全固化度，24小時可達(dá)到90%。當(dāng)環(huán)境溫度升高時，固化時間明顯縮短。因此，冬季室外施工時，有必要增加保溫或保溫養(yǎng)護(hù)措施。
Maintain health. The repairing agent is self-vulcanized at the groove to obtain its physicochemical properties and bonding effect with the matrix. Usually at room temperature for several hours to several days, the initial hours of basic maintenance, can reach 70% - 80% of the total curing degree, 24 hours a day can reach 90%. When the ambient temperature rises, the curing time is obviously shortened. Therefore, in winter outdoor construction, it is necessary to add thermal insulation or maintenance measures.
輸送帶連接和修理可用于剝皮機(jī)、開孔機(jī)、封邊機(jī)、磨床、烘培機(jī)等機(jī)械化、自動化的工具，國內(nèi)生產(chǎn)。隨著納米技術(shù)的應(yīng)用，陶瓷mm-合成橡膠95被發(fā)現(xiàn)可以立即修復(fù)受損的傳送帶;Mm-ss鋼陶瓷可修復(fù)機(jī)架、軋輥等部位的裂紋。
Conveyor belt connection and repair can be used for peeling machine, hole opener, edge sealing machine, grinder, dryer and other mechanized and automated tools, domestic production. With the application of nanotechnology, ceramic mm-synthetic rubber 95 was found to be able to repair damaged conveyor belts immediately, and Mm-ss steel ceramics could repair cracks in racks, rolls and other parts.
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