Technique instruction of glass-squama colophony antisepticised construction

一、Brief instruction of construction method

Antisepticised material of glass- squama colophony is the compound stuff made of discontinuous glass-squama and dense colophony with special equipment. So its construction work is that the workers daub the dope on the face with float and reamer according to certain thickness, and make the glass-squama folded, pressed and arranged according certain aspect .After the getting rid of dunking ,rolling dunking, it can be solidified and molded. This construction work is similar to architecture plastering work. But because of the different characteristics of colophony and cement material, it can be used for different purpose. So comparing with plastering work, daubing work demands more and is harder.

二、Mainly characteristic of construction

1、The work of antisepticised glass- squama colophony is a kind of handcraft manipulation, so the construction quality depends on the worker’s technique and mastership greatly.
2、The surface quality of antisepticised layer, the arranging of glass-squama, controlling of thickness depends on the worker’s technique level and work experience.
3、Antisepticised layer of glass-squama must be obturated completely. In order to prevent the shortcoming of squama unparallel and stress destroying, end surface, connecting surface and corner should be protected by adopting the equalizing measure of boosting up the glass cloth.
4、Professional material facility should be equipped furthest in the construction in order to reduce the air bladder.
5、Professional material facility should be equipped furthest in the construction in order to reduce the air bladder.

Technique instruction of antisepticised glass- squama colophony construction

三、demands to the structure and surface of protected metal shell in construction

1、The protected metal shell should have strong intension and rigidity, in order to prevent destroys of liner antisepsis layer caused by the distortion in the process of transportation, fixing and construction.
2、Metal shell structure should meet the qualification of construction work and the qualification of being plastered with hand.
3、Before construction, the configuration (no matter the inner wall or outer wall) that should be jointed must be jointed completely.
4、The equipment with inner piece and that should be frequently checked in the course should be equipped with the qualification of fixing, examining and repairing .Make sure that it will not destroy the inner underlayer when fixing and repairing.
5、The metal shell should apply jointing structure in principle. If there is an urgent circumstance, rivet with heavy caput should be used .
6、Surface of metal shell should be clean, flat, with no solder dregs and burrs. The surface jointing should be smooth and flat, the protruding height should be less than 1mm, otherwise grinding wheel machine should be used to burnish.
7、Sand must be sprayed and rust must be removed strictly in metal shell.
8、The machining, jointing, test of press and leak of the equipment should be completed before the construction. Jointing is not allowed after the construction.