1. The longitudinal tear in the middle of the steel belt is 14-15 meters, how to repair it?
The upper and lower covering glue of the damaged part can be peeled off (the length exceeds the damaged part by 50-100mm, and the width exceeds the damaged part by 30-50mm), and at the same time, take a piece of rubber with the same size as the peeled part (preferably with a layer of cloth), and then It can be repaired according to the cold glue method.
2. Comparison of EP high temperature resistant belt and cotton canvas high temperature resistant belt:
a. The same point: the surface covering glue is the same.
b. Differences: cotton canvas can withstand a maximum temperature of 150 degree ; EP-TNG canvas can be used for a long time at 200 degree , and can be used at a maximum of 220 degree ;
The strength of cotton canvas is relatively low, only 50N/mm; while the strength of EP-TNG canvas is relatively high, and the commonly used type 200 is 200N/mm;
Lekatan tali pinggang tahan suhu tinggi kanvas kapas agak rendah, dan lekatan tali pinggang tahan suhu tinggi EP agak tinggi; hayat perkhidmatan tali pinggang tahan suhu tinggi EP jelas lebih lama daripada tali pinggang tahan suhu tinggi kanvas kapas.
3. Hot glue stripping method (is it good to remove the glue at one end)?
Ini adalah kaedah pelekat lain, kaedah ini juga mungkin, tetapi jika anda menggunakan kaedah ini, perhatikan perkara berikut:
a. Be sure to use sealing glue;
b. The parts where the edge rubber parts meet must be connected by vulcanized rubber;
c. The parts where the rubber is connected must be polished
The disadvantage is that the edge glue part is easily damaged if it is not handled properly.
4. The joint temperature reaches 120 degree , but does not reach the normal vulcanization temperature?
no. The normal vulcanization and crosslinking temperature of rubber is determined by the vulcanizing agent and accelerator in the rubber. In order to ensure the safety of rubber processing, the general manufacturer will not set the vulcanization starting temperature of the rubber used in the conveyor belt to be very low. Therefore, when the temperature reaches 120 degree , the rubber will not enter the normal vulcanization state. Therefore, at 120 degree , the quality of the conveyor belt joint will be greatly affected.
Biasanya, apabila suhu pemvulkanan lebih tinggi daripada suhu pemvulkanan kritikal pemecut dan agen pemvulkanan dan tidak dapat mencapai suhu pemvulkanan biasa, kaedah memanjangkan masa pemvulkanan boleh diguna pakai untuk menjadikan pemvulkanan getah memenuhi keperluan. Secara amnya, setiap kali suhu lebih rendah daripada 10 darjah , masa pemvulkanan dipanjangkan sebanyak 2-4 kali. Sudah tentu, atas sebab prestasi, kami tidak mengesyorkan penggunaan -suhu rendah dan pemvulkanan jangka panjang.
5. Can core rubbers from different manufacturers be mixed?
Tidak digalakkan mencampurkan getah teras dari pengeluar yang berbeza kerana formula getah teras dari pengeluar yang berbeza adalah berbeza. Terdapat banyak jenis agen pengkompaun dalam getah, dan beberapa daripadanya mempunyai tindak balas interaktif. Dalam formula pengilang yang sama, tidak akan ada agen pengkompaunan dengan tindak balas interaktif yang buruk, tetapi formula pengeluar yang berbeza sangat berbeza. Apabila digunakan, mungkin terdapat pantulan interaktif agen pengkompaunan, yang akan menjejaskan kesan penggunaan getah teras.
