Installation steps and pressure of vulcanizing machine

(1) arrange the single off-machine form;
(2) Put the pressure device (hydraulic plate) on the rack-mounted machine first; then put the lower electric heating plate on it. After the three are aligned, the lower heating plate is covered with plastic film (or sprinkled with talc powder); Note: When multiple vulcanizers are working in parallel, a thin metal plate with a length of 0.2x50x joint is placed at the joint of the lower heating plate.
(3) Place the tape joints that have been processed and processed and filled with rubber on the lower hot plate; after locating the center line, fix the tape with clamping pads and clamping mechanisms on both sides.
(4) Above the tape joint. The position corresponding to the lower heating plate is covered with plastic film (or talcum powder), and then the upper heating plate and heat insulation plate are placed on it in order. Note: When multiple vulcanizers work in parallel, a thin metal plate with a length of 0.2x50x seam should be placed at the seam of the lower heating plate.
(5) Place the upper frame on the heat insulation board, and align and align with the lower frame.
(6) According to Figure 8, install the pre-tightening bolts, washers and nuts in the long holes at both ends of the upper and lower frames, and tighten the nuts with a wrench. At this point, the main part of the vulcanizer is installed.
(7) Connect the quick connector of the pressure pump system to the water inlet of the pressure device, and insert the primary power wire into the socket of the electric heating control box accordingly, and one end of the secondary wire into the socket of the electric heating control box Insert the other end into the electric heating plate; insert the corresponding wire of the thermal resistance (or thermocouple) into the socket of the electric heating control box, and insert the other end into the temperature measuring hole of the electric heating plate. At this time, the vulcanization installation is all completed, ready to pressurize and heat the timing operation.



(2) Vulcanizing pressure of belt vulcanizing machine
  
The vulcanization pressure is an important condition for the vulcanization of adhesive tape. Because the pressure can play the following roles in the vulcanization process:
 
①Improve the compactness and adhesion of the core layer and the rubber, exhaust the gas inside the joint, and eliminate bubbles;
 
②Promote the flow of rubber and quickly fill the adhesive surface of the core layer;
 
③Improve the adhesion strength of the adhesive surface of the tape joint and the flexural resistance of the tape.
  
The vulcanization force depends on the performance of the compound (mainly plasticity), product structure, and process conditions. The flow of the rubber is small, and the vulcanization pressure should be larger; otherwise, the pressure should be smaller. The tape is thick, there are many layers of tape (core layer), and the structure is complex. If the steel wire rope is the core layer, a larger vulcanization pressure should be required. The effect of vulcanization pressure on the vulcanization speed is very small, and it is generally not considered. When vulcanizing and bonding on site, the vulcanization pressure of canvas and nylon core tape is 0.8-1.2MPa ;. If the tape is thin, the lower limit should be used, and if the tape is thick, the upper limit should be used.
  
(3) Vulcanization time: The vulcanization bonding process must be completed after a certain period of time. Vulcanization time can be calculated according to the following formula for canvas and nylon core tape:
  
T = Tzh + (i + δ) K where: T