4results about How to "Improve melting effect" patented technology

This invention discloses a black-based blue-spotted glaze with an earthworm-like pattern and its preparation method. The glaze consists of a body, a black base glaze, and a blue-spotted glaze from the inside out. The raw materials for the black base glaze are: feldspar, calcite, calcium borate, dolomite, talc, barium carbonate, quartz, bentonite, zirconium silicate, rutile, cobalt oxide, manganese oxide, and iron oxide. The raw materials for the blue-spotted glaze are: feldspar, limestone, alumina, talc, barium sulfate, Datong clay, zinc oxide, quartz, and titanium dioxide. The preparation method includes: 1. Wet ball milling the black base glaze raw materials to obtain a black base glaze slurry; 2. Wet ball milling the blue-spotted glaze raw materials to obtain a blue-spotted glaze slurry; 3. Bisque firing the body; 4. Applying the black base glaze slurry to the body and drying it; 5. Applying the blue-spotted glaze slurry to the body and drying it; 6. Oxidation firing and reduction firing of the body, followed by natural cooling to obtain the black-based blue-spotted glaze. The raw material formula of this invention is reasonable and environmentally friendly, which can improve the mechanical properties of the glaze; the preparation method is simple and the yield is high.

The application discloses a kind of resource utilization of ceramic glaze of raffinate acid, it is the powder prepared with raffinate acid as main raw material;Each raw material and its weight fraction included are as follows: raffinate acid 16-20 parts, citric acid 5-8 parts, alcohol additive 4-7 parts, water 5-10 parts.The application takes industrial by-product raffinate acid as main raw material, fully recycles and utilizes effective elements in raffinate acid, further combines the regulation and control mechanism based on citric acid and alcohol additive and segmented temperature control process, and can realize high value-added resource utilization of raffinate acid in glaze field, with significant economic and environmental benefits;The obtained ceramic glaze can give consideration to good sintering crystallization effect, gloss and mechanical property, and has wide applicability.

The application relates to the technical field of heat-preservation tube extrusion forming, in particular to an extrusion forming device for double-tube heat-preservation tube production, which comprises an extrusion cavity and a heating cylinder, the heating cylinder is fixedly sleeved on the outside of the extrusion cavity, a waste hopper and a raw material cylinder are fixedly installed at the top of the extrusion cavity, the waste hopper and the raw material cylinder are respectively located at the middle end and the tail end of the extrusion cavity, a sealing cover is rotatably installed in the waste hopper, and a plurality of spiral supporting rods are integrally formed on the top of the sealing cover. The spiral supporting rods rotating in the waste hopper can stir the waste material solution when the spiral supporting rods rotate, the melting effect of the waste material is improved, the particles and impurities in the solution are captured, the spiral rod two reciprocatingly moves up and down, the uniformity and efficiency of mixing are improved, the solution driving rotating drum is reversely rotated, the solution in the extrusion cavity is mixed at the rotating drum, and the uniformity of solution mixing is further improved.

The application discloses a co-rotating twin-screw extruder with periodically changed rotating speed ratio and a processing method thereof. The co-rotating twin-screw extruder with periodically changed rotating speed ratio comprises a barrel and a screw mechanism. The barrel adopts an 8-shaped structure with cylindrical holes penetrating each other in parallel with their axes. The screw mechanism is located in the barrel and comprises a first screw and a second screw. The first screw and the second screw rotate in the same direction, the average rotating speeds of the first screw and the second screw are equal, the rotating speeds of the first screw and the second screw periodically pulsate with time, the pulsation periods of the first screw and the second screw are the same, and the first screw and the second screw always rotate in meshing with each other during operation, so that the self-cleaning function is realized. The introduction of the periodic transient disturbance effect strengthens the reinforced melting, mixing and exhaust efficiency, and the co-rotating twin-screw extruder is especially suitable for low-temperature processing of a strong dispersion multi-phase material system.