2013年8月14日星期三

how to reduce fabric hose diameter round loss


Fabric hose because no molding vulcanized rubber hose inside diameter round loss is inevitable, may take the following measures to reduce the degree of loss round:

① rational design of inner plastic recipe, use less liquid softener, and the use of solid softener such as asphalt, resins and other solid Coumarone the tube well connected, easily deformed under pressure;

② inner plastic thickness cost permitting appropriate to increase (to be appropriate to reduce the cost of compensation with gum);

③ outer plastic extruded hose should be closely sulfide emissions and as soon as possible;

④ using direct steam curing, socketless fitting the inner diameter of 25mm hose the following vulcanization tray stacked layers not more than 3 layers stacked inside diameter of 32mm hose should not be more than two layers, inner diameter 38mm above the hose out of round seriously, best not to use this curing process, Boiled vulcanized be limited though, but should be avoided for the production of large diameter hose. Some factories had large diameter hose (32-76mm) conducted coreless direct steam partial pressure vulcanization molding experiments, the solution was bubbled delamination problems and the inner diameter round loss to obtain better results.

Fabric hose diameter round loss solution is: The ends can be uncapped autoclave, the tank in addition to a normal inlet pipes and exhaust pipes, the ends of the tank into the creation of flexible connections steam pipe and exhaust pipe, forming a good hose is placed on the platen vulcanizing car, there are loose ends platen steam through multi-plug pipe fittings, hose ends are inserted into each respective plug inside, fixed with clamps Well, then vulcanized vehicle selected into the tank, respectively, connected multi-plug Explorer and soft steam pipe attached securely closed autoclave, start with one end of the flexible hose connected to the steam pipe to enter the steam, and then give it away again autoclave steam, pressure inside the hose high pressure over 0.02 a O.03MPa tank under vulcanization. Hose inside the tank and the need for timely condensate discharge. After curing, while maintaining pressure exhaust steam and spray cold water in the tank to cool cans of soft connecting tube after each unload, pull vulcanized car relieved fixture, remove the hose cutting head checked.

68, stainless steel metal hose advantage?

1, stainless steel flexible metal hose between the pitch.

2, stainless steel metal hose has good elasticity, non-blocking and stiffness.

3, stainless steel metal hose, light weight, caliber and good consistency.

4, stainless steel flexible hydraulic couplings metal hose, repeated bending resistance, good flexibility.

5, the corrosion resistance of stainless steel metal hose, high temperature resistance.

6, stainless steel metal hose rodent, good wear resistance, prevent internal wires are worn.

7, stainless steel metal hose resistant to bending, tensile properties, resistance to lateral pressure resistance.

8, stainless steel metal hose soft and smooth, easy threading mount positioning.

Three effects of stainless steel metal hose

(1) reducing stress pipe installation.

(2) Compensation pipeline rated position.

(3) absorbing the vibration of the piping system.

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