（1）Tape vulcanizing machine vulcanization temperature

The curing temperature during tape vulcanization is one of the main control conditions in the rubber vulcanization process, as it refers to the temperature at which the curing reaction occurs under certain required conditions for the raw rubber material. Due to poor on-site operations, working environment, and conditions, and the difficulty in mastering the vulcanization system of the adhesive material, most domestically and internationally currently control it at 145±5℃.
 
(2) Tape vulcanizing machine vulcanizing pressure
 
Sulfur pressure is a crucial condition for vulcanized tape bonding. Because pressure can play the following roles during the vulcanization process:
 
Enhance the compactness and adhesion of the core layer and rubber material, expel the internal gas at the joint, and eliminate air bubbles.
 
Enhance the flow of the rubber compound and rapidly fill the bonding surface of the core layer.
 
Enhanced adhesive surface adhesion for tape joints and improved tape flexibility resistance.
 
The degree of vulcanization pressure depends on the properties of the rubber material (mainly plasticity), product structure, and process conditions. For rubber with less flow, higher vulcanization pressure should be applied; conversely, lower pressure is needed. Thicker tape with more rubber layers (core layer) and complex structures, especially when the core layer is made of steel wire rope, requires greater vulcanization pressure. The vulcanization pressure has little impact on the vulcanization speed and is generally not a concern. During on-site vulcanization bonding, for canvas and nylon core layer tape, the vulcanization pressure should be between 0.8-1.2 MPa. For thinner tape, the lower limit should be used, and for thicker tape, the upper limit should be selected.
 
(3) Curing Time: The vulcanization process of bonding must be completed within a certain period of time. The curing time for canvas and nylon core adhesive tape can be calculated using the following formula:
 
T = Tzh + (i + δ)K Where: T – Vulcanization Time (min) Tzh – Curing Time of the Rubber Compound, typically selected as 15 min