34results about How to "High firing rate" patented technology

The invention provides a method for removing fluorine, chlorine and valuable metals in secondary zinc oxide, which solves the problems of low removal rate, high energy consumption, low environment friendliness and low economical efficiency in the prior art. According to the method, high-fluoride/chloride secondary zinc oxide used as a raw material is granulated, aired and subjected to rotary kiln roasting, flue gas is settled and subjected to dust collection, the roasted product is subjected to indirect water cooling, and a mixed air heating process is adopted by using natural gas as a heat source, thereby removing the fluorine, chlorine, lead and indium and implementing reenrichment of indium, lead and other valuable metals. The roasting process is utilized to remove most of fluorine, chlorine, lead and indium; the lead and indium are enriched in the roasted dust, thereby solving the problem of later processing of the high-fluoride/chloride secondary zinc oxide; and the method has the advantages of fewer required technical processes, high efficiency, smooth procedure, high degree of mechanization and the like, and greatly enhances the environmental and economic benefits.

The invention discloses a green-yellow light LED epitaxial structure with an optimal reflecting layer and a preparation method thereof. The green-yellow light LED epitaxial structure is provided witha GaAs substrate, an AlGaAs buffer layer, a GaAsP buffer layer, an AlGaAsP/AlAsP DBR layer I, an AlGaAsP/AlAsP DBR layer II, an AlGaAsP/AlAsP DBR layer III, an AlInP/AlGaInP DBR layer, an N-AlInP limiting layer, an AlGaInP N waveguide layer, an AlGaInP quantum well active layer, an AlGaIn P waveguide layer, an AlIn P limiting layer and a GaP window from bottom to top in sequence, the AlGaAsP/AlAsPDBR layers consist of an AlAsP/AlGaAsP DBR layer I, an AlAsP/AlGaAsP DBR layer II and an AlAsP/AlGaAsP DBR layer III to form a compound Bragg reflector layer, the light, reflected to a substrate, ofan active layer is reflected and emitted out from the top by using a periodic stratified structure consisting of two materials with different refractive indexes, so that the light extracting rate is greatly improved, the inner stress of the reflector layer is effectively reduced through the intervention of micro PH3, the green-yellow light LED epitaxial structure has relatively high reflectivity,and long-time electrification reliability of a diode is realized.

The grain size composition in zirconia base ceramic formula for preparing cylinder casing belongs t the field of structure ceramic preparation technology, and the grain size of main component zirconia powder body in the ceramic formula for preparing cylinder casing includes: one kind of 60-80 wt% of zirconia powder boby whose average grain size is 0.2-0.5 micrometer, and another kinds of 20-40 wt% of zirconia powder body whose average grain size is 0.6-1.2 micrometer, in the zirconia powder body 2-3 mol% of yttrium oxide, 0.5-5 mol% of magnesium oxide, 4-15 wt% of alumina and proper quantity of dispersing agent are added, and undergone the processes of ball-grinding, mixing, spray-granulating, isostatic pressure forming and firing at 1460-1520 deg.c so as to obtain the invented ceramic cylinder casing whose service life is above 2400 hr.

The invention relates to a ceramic mushroom-shaped teapot filter and a teapot with the same. The mushroom-shaped filter is a mushroom-shaped hollow combination body and consists of a filter ball and a pin, filter holes are arranged on the filter ball and communicated with the pin, the filter ball is in the shape of a round ball or a similarly round ball or a cone or a circular truncated cone or a square table or a barrel, and the filter holes are uniformly distributed on the filter ball. The filter is a blank or a sintering part. The mushroom-shaped filter is arranged at a communicated position of a teapot mouth and a teapot body of the ceramic teapot, and the pin is integrally connected with a wall of the teapot body. Forming steps for the filter and the teapot include respectively manufacturing the teapot body, a teapot handle, the teapot mouth and the blank of the mushroom-shaped filter by ceramic slurry; punching a hole on the wall of the teapot body; inserting the pin of the filter into the hole; and folding and riveting the pin of the filter to be adhered onto the outer wall of the teapot body. The filter holes are fully distributed on the filter ball of the filter, filter area is large, filter directions are abundant, solid matters are not easy to be adhered on the filter, and filter holes are not easy to be blocked. The teapot with the filter has higher filter efficiency. A forming technological method is unique in design, contact points and contact surfaces are abundant, lap joint is accurate, forming is rapid, production efficiency is high, the filter and the teapot with the filter are formed neatly, and top sintering yield is high.

The granularmetric composition of aluminum oxide as main constituent of ceramic jacket of drill pump comprises 60-70wt% of aluminum oxide with particle mean size of 0.8-1.0mum and 30-40wt% of aluminum oxide with particle mean size of 1.0-2.8mum. Moreover, 15mol% of zirconium oxide and disperser are added to it and the mixture is shaped by isostatic pressing after abrading-ball mixing and spray pelleting then treated under the temperature between 1550-1620 Deg.C to produce ceramic jacket with life duration of more than 2000h. Meanwhile, the invention has the advantages of high rate of finished products and low cost of material and process.

The invention discloses high-temperature black-body porcelain, prepared with a preform body and glaze. The preform body is made from, by weight, 18-20% of washed clay, 12-15% of lime mud, 36-44% of white clay, 18-25% of red purple-sand shale, 16-20% of quartz, and 5-8% of tillite. The glaze is made from, by weight, 20-25% of potassium feldspar, 15-22% of soda feldspar, 25-30% of quartz, 10-15% oflimestone, 5-13% of zinc, 5-12% of barium carbonate, 3-8% of talcum, 5-8% of kaolin, and 3-6% of titanium. The finished porcelain has authentic color, good attractiveness and good surface artistic effect; product firing rate is high, product performance is stable, and glaze surface is free of cracking.

The invention discloses Jun porcelain bluish white glaze and a preparation method thereof. The Jun porcelain bluish white glaze is prepared from the following raw materials in parts by weight: 43 parts to 48 parts of melilite, 13 parts to 19 parts of calcite, 15 parts to 21 parts of quartz, 2 parts to 3 parts of tin oxide, 2.5 parts to 3.5 parts of fired talc, 0.9 part to 1.1 parts of zirconium silicate, 1.5 parts to 2.5 parts of zinc oxide, and 1.5 parts to 2.5 parts of tourmaline. The preparation method of the Jun porcelain bluish white glaze comprises the following steps: (1) adding water into the raw materials and mixing; carrying out ball milling to obtain glaze slurry; (2) glazing; (3) firing at firing temperature of 1280 to 1300 DEG C. The Jun porcelain bluish white glaze and the preparation method of the Jun porcelain bluish white glaze disclosed by the invention have the beneficial effects that by adding chemical raw materials including tin oxide, zinc oxide and zirconium silicate into a conventional raw material, so that the finished product rate is increased from originally being less than 50 percent to 80 percent or above; by adding the tourmaline, the product can slowly release negative ions to surrounding environment, so that certain antibacterial and deodorizing effects are achieved.

The invention relates to a formula of a glaze material showing purple-white ripples in furnace transmutation. Raw materials of the glaze material include feldspar, calcite, iron ore, cattle bone ash,fluorite, kaolinite clay rock, glaze stone, frit, zinc oxide, talc powder, copper oxide and stannic oxide, and particularly include, by weight, 60-70 parts of the feldspar, 30-40 parts of the calcite,15-20 parts of the iron ore, 7-20 parts of the cattle bone ash, 8-15 parts of the fluorite, 7-15 parts of the kaolinite clay rock, 5-10 parts of the glaze stone, 5-9 parts of the frit, 3-5 parts of the zinc oxide, 0.5-1 part of the talc powder, 0.1-0.3 part of the copper oxide and 0.1-0.3 part of the stannic oxide. The glaze material has bright and gorgeous color, novel and beautiful patterns, uniform cracks, high artistic value and ornamental and collection value, a high firing yield, and high production value, and the production efficiency is increased.

The invention discloses medium-temperature black-body ceramic. The medium-temperature black-body ceramic is prepared by a preform body and glaze, wherein the preform body comprise, by weight percentage, 20-23% of washed porcelain clay, 9-12% of grey clay, 28-35% of white clay, 20-28% of red purple-sand shale, 21-25% of quartz and 5-8% of tillite; the glaze comprises, by weight percentage, 30-35% of potassium feldspar, 25-30% of albite, 25-30% of quartz, 10-15% of limestone, 0-4% of zinc oxide, 5-12% of barium carbonate, 3-8% of talcum, 5-8% of kaolin and 5-12% of pigment or 3-6% of coloring oxide. The medium-temperature black-body ceramic is high in sintering yield, stable in performance and free of glaze cracking.

The invention relates to the technical field of pottery manufacturing, in particular to a manufacturing method of wood-grain-color pottery. The method comprises the following steps: step 1, manufacturing primary pug; step 2, preparing slurry; step 3, preparing materials for a finished molded product; step 4, manufacturing the finished molded product; step 5, trimming the manufactured finished molded product; and step 6, firing greenware. The method has the advantages that the raw materials for manufacturing the wood-grain-color greenware are wide in sources; red and white clay blocks for manufacturing the wood-grain-color greenware are fine and smooth and good in formability through treatment of the primary pug, foundation pug and the slurry; treatment steps are simple; the manufactured wood-grain-color greenware is high in firing yield and remarkable in wood grain color effect; and in addition, no additive is added, so manufacturing cost is effectively reduced.

The invention relates to a horizontal-type water-tank-free water-saving stool. A lateral or rear drain outlet at the bottom is directly communicated with a vertical drain pipe of a toilet through an inclined pipe, an odor seal is saved, and an order-insulating valve interface for mounting an order-insulating valve is arranged at a drain inlet at the bottom and is used for draining excrement and urine and avoiding odor uprise. An odor remover interface for mounting an odor remover is arranged at the upper part, a waste water interface for connecting a drain pipe of a cleaner, such as a sink, and the like is arranged above the drain inlet. The stool is automatically flushed by waste water for washing faces, vegetables (the kitchen and the toilet are adjacent), and the like. The invention overcomes the defects of great water consumption, easy blockage, unsuitability for rural areas, and the like of a traditional stool and provides a horizontal-type water-tank-free water-saving stool which is water-saving, energy-saving, emission-reducing, environment-friendly and resource-saving, is odor-free, nonclogging and watertight in defecation, is clean, flavorless and space-saving, automatically utilizes the waste water and is suitable for cities and rural areas and suitable for the needs of water-saving-type society and new rural area construction.