Abstract: The present invention relates to a multi-level and vertical assembling type PTFE heater and the methods of manufacture thereof. Said heater includes a vertical frame assembled by multi-poles and upper and lower retaining plates. Several levels of PTFE sleeves and electrical heating belts are alternatively disposed on the multi-poles. The number of the poles is determined in accordance with the size and capacity of a heater desired and the power and levels of PTFE electrical heating belts with heating needs. Multiple levels of PTFE electrical heating belts are formed in an assembling way, by which heaters with varied powers are easily produced and with the elements replaceable, will not be wholly wasted in event of an element damaged, thus the heater service life prolonged. Said heater has a better heating result than the one with only a single level of heating structure.

Abstract: The present invention relates to a method for forming fluoroplastic articles including inner and outer fluoroplastic layers and a metal meshwork, the metal meshwork being arranged between the inner and outer fluoroplastic layers, characterized by the meshwork being stretchable and compressible in an axial direction.

Abstract: The present invention relates to a multi-level and vertical assembling type PTFE heater and the methods of manufacture thereof. Said heater includes a vertical frame assembled by multi-poles and upper and lower retaining plates. Several levels of PTFE sleeves and electrical heating belts are alternatively disposed on the multi-poles. The number of the poles is determined in accordance with the size and capacity of a heater desired and the power and levels of PTFE electrical heating belts with heating needs. Multiple levels of PTFE electrical heating belts are formed in an assembling way, by which heaters with varied powers are easily produced and with the elements replaceable, will not be wholly wasted in event of an element damaged, thus the heater service life prolonged. Said heater has a better heating result than the one with only a single level of heating structure.

Abstract: The present invention relates to a polytetrafluoroethylene (hereinafter referred to as PTFE) heating product, the technical solution of which includes embedding at least one piece of electrical heating element inside a PTFE substrate with the electrical heating element wiring terminal(s) exposed out of the substrate for connecting an external power source to energize the heating product. Depending on varied purposes, the PTFE heating product can be manufactured into the cylindrical type, which is used in cylindrical apparatuses such as tank reactors, towers, storage tanks, pipes etc. in the chemical industry, or the plate type, which is used in square-type tanks (as equipment) and as domestic heating radiators, or other special types. The present invention also involves the manufacturing methods and installation of the related apparatuses of said PTFE heating product.

Abstract: The present invention relates to a method for forming fluoroplastic article, comprising inner and outer fluoroplastic layers and a metal meshwork, the metal meshwork being arranged between the inner and outer fluoroplastic layers, characterized by the meshwork can be stretched and compressed in the axial direction.

Abstract: The present invention relates to a fluoroplastic article, comprising inner and outer fluoroplastic layers and a metal meshwork, the metal meshwork is arranged between the inner and outer fluoroplastic layers, characterized by that said meshwork can be stretched and compressed in the axial direction.

Abstract: The invention relates to polytetraflyororthylene (PTFE) anticorrosive product and the method for making the same. The product is characterized in that a metal sieve is sandwiched in PTFE layer. The disadvantage of single PTFE product namely damage of the product caused by the change of temperature and the deformation of the product caused by the cold flow property are overcome, so as to guarantee the quality of the product, and increase the service life. The method for making the PTFE anticorrosive produce is an improvement to the prior method and further comprises the step of wrapping a layer of metal sieve between two steps of winding the PTFE tape.