103 results about "Fibre coating" patented technology

The present invention provides a method and apparatus for curing a coated fiber, comprising either two fiber coating curing stages separated by a cooling stage, or two fiber coating curing stages separated by a distinct time interval, or both. One of the two fiber coating curing stages responds to the coated fiber, and provides a partially cured fiber coating. The other of the two fiber coating curing stages responds to the partially cured coated fiber for further curing the coating of the fiber. In one embodiment of the invention, a cooling stage is placed between the two curing stages, while in the other the curing stages are placed a set distance apart such that polymerization of the coating initiated by the first curing stage has time to complete prior to the coating being irradiated by the second curing stage. The cooling stage is used to actively remove heat generated during the cure process from the fiber coating, while the time delay is used to allow complete polymerization to occur before subsequent irradiations. These embodiments of the present invention can be used separately or in combination to achieve optimal fiber coating cure.

The invention provides methods and apparatus for producing flexible, stretchable, and / or elastic products comprised principally of material such as natural elastomers and other synthetic polymers. The method and apparatus for producing stretchable products by spraying product material over a workpiece former, and method and apparatus for creating perforated products by spraying product material over a perforated surface or partly breathable surface, The invention also provides methods and apparatus for making double sided fibre coating of the product and, or to at least coating the product surface on the side facing the wall without the need for removing the product from the wall. The method and apparatus also enable easy removal of the product from the former. Workpiece formers are also provided.

A capacitive gas sensor and a method of fabricating the same are provided. The capacitive gas sensor includes an insulating substrate, a metal electrode and a micro thin-film heater wire integrally formed on the same plane of the insulating substrate, and an oxide detection layer coated on the metal electrode and the micro thin-film heater wire. The fabrication method includes depositing a metal layer on an insulating substrate, etching the metal layer so that a metal electrode and a micro thin-film heater wire form an interdigital transducer on the same plane, and forming a nano crystal complex oxide thin film or a complex oxide nano fiber coating layer on the metal electrode and the micro thin-film heater wire as a detecting layer. The capacitive gas sensor can be easily fabricated and can have excellent characteristics such as high sensitivity, high selectivity, high stability, and low power consumption.

The invention relates to a composite carrier of metal fiber and inorganic fiber and a preparation method. The method comprises the following steps of: (1) preserving heat of the metal fiber for 2 hours under the condition of 650-750 DEG C; and transferring into treatment solution containing 1 percent H3PO4 and 0.2 percent SO4 to treat at the temperature of 50 DEG C for 4 hours, washing with water for three times, and drying the moisture; (2) mechanically stirring and mixing each ingredient of an inorganic fiber coating, and then making a layer of wet mixed slurry on a metal fiber screen by using a paper making method; blowing with compressed air of 0.05-0.1 MPa; and rolling into a carrier blank of a concentric circle, a double-core circle or a three-core circle in a wet state; and (3) finally, integrally and simultaneously blowing one end of each the rolled carrier blank at one time by using the compressed air of 0.2-0.4 MPa; raising temperature in a high-temperature furnace along with the furnace at the rate of 80 DEG C / 60 minutes, 120 DEG C / 60 minutes, 200 DEG C / 30 minutes, 300 DEG C / 60 minutes or 500 DEG C / 120 minutes; and then cooling to room temperature along with the furnace. The carrier is sintered into the carrier with the composite structure of spatially and three-dimensionally crossed metal fiber and inorganic fiber after being rolled, is tidy in the macroscopic level and confused in the microscopic level, and is used for SCR (Selective Catalytic Reduction) and POC (Particle Oxidation Catalyst) post-treatment; a back pressure problem is avoided; the process is simple and convenient; and the cost is equivalent to 1 / 2 that of an imported product under the condition of equivalent performance, so that the cost is saved.