31results about How to "Meet the requirements of the conditions of use" patented technology

Proportioning (volume percent) of the composite material is as following: solidified agent 1-2%, flame retardant 0.5-2%, insulation material 20-60%, nano graphite powder 36-75%. Nonmetallic electrothermal film is prepared through thermoplastic molding and traditional technical molding. Characters of the composite material are as following: capability of any folding for many times repeatedly, water washable, high electrothermic conversion efficiency, portable and long service life. Electrical specification of the composite material is as following: AC or DC 1.2-380V, power 1W-3kW, heating temperature 20-85 deg.C and 100-250 deg.C. The composite material is applicable to thermal wear, electric carpet, drying apparatus and other heating elements.

The invention relates to a castable material for an aluminum melting furnace. The castable material comprises the following components of 70-88 percent of I-level bauxite, 5-15 percent of clay, 3-10 percent of kyanite and 4-8 percent of binding agent, wherein the I-level bauxite with the grain size of 5-3 mm accounts for 35-45 percent, the I-level bauxite with the grain size of 3-1 mm accounts for 20-30 percent, the I-level bauxite with the grain size of 1-0 mm accounts for 15-25 percent, and the I-level bauxite with the grain size lower than 0.09 mm accounts for 15-25 percent. All the physical performance indexes of the refractory castable material inner lining produced according to the grain size and the mixture ratio are as follows: the breaking strength is 15.6MPa, the compression strength is 41.3MPa, the linear change rate is 0.18 percent, the volume density is 2.81 g.cm, and the actual application shows that all the physical performance indexes can fully meet the requirements of service conditions of the inner lining of the aluminum melting furnace, no crack phenomenon occurs, the problem of alumetizing is eliminated, and the service life can reach more than 4 years.

The invention relates to the technical field of building partition materials, in particular to a waterproof gypsum environmental-friendly building block. The waterproof gypsum environmental-friendly building block is produced through the steps of stirring beta semi-hydrated gypsum, a water reducing agent, an inorganic material and a composite water-proofing agent, adding water and performing casting, wherein the percentage by weight of the raw materials is that the weight of the inorganic material is 9-15% of that of the beta semi-hydrated gypsum, the weight of the water reducing agent is 0.4-0.7% of that of the beta semi-hydrated gypsum, the weight of the composite water-proofing agent is 0.7-1.2% of that of the beta semi-hydrated gypsum, and the weight of the water is 58-70% of that of the beta semi-hydrated gypsum. Compared with the prior art, the environmental-friendly building block disclosed by the invention is produced through the following steps of mixing and stirring the beta semi-hydrated gypsum, the inorganic material, the water reducing agent and the composite water-proofing agent, then adding the water, and performing casting and shaping so that the problems that the coagulation time is too long, productivity is difficult to form, the intensity is low, the cost is high, and efflorescence and mildewing occur, are solved.

The invention provides a HDPE winding structure wall B type pipe with a lining as a fireproof layer and a manufacturing process thereof, and solves the problem of possible generation of fire due to exposure of pipes in an environment capable of contacting with open fire due to change of use environments. An inner layer is designed as the fireproof layer, but a whole pipe body is not designed as afireproof pipe, so that the requirements of use conditions can be met, no waste can be achieved, and the low cost is guaranteed. The application range of high-density polyethylene drainage pipes is widened, so that the effects of simple construction and cost reduction are indirectly achieved, and wide popularization and application value is achieved.

The invention relates to a special castable for a kiln mouth. The special castable comprises the following components by weight: 18-25 parts of 8-5mm mullite homogenate, 8-12 parts of 5-3mm ladle reclaimed material, 6-10 parts of 5-3mm mullite homogenate, 8-12 parts of 3-1mm ladle reclaimed material, 6-10 parts of 1-0mm ladle reclaimed material, 8-15 parts of 1-0mm mullite homogenate, 2-15 parts of spinel powder no more than 200 meshes; 3-5 parts of magnesia no more than 200 meshes, 6-10 parts of alumina powder, 5-8 parts of magnesia spinel cement, 1-3 parts of silicon micropowder, 0.01-0.03 part of explosion-proof fiber and 0.01-0.03 part of water reducing agent. The special castable adopts the ladle reclaimed materials, has low raw material cost, strong resistance to gas pickling of K2O,Na2O and other alkaline gas, strong wear resistance and thermal shock resistance stability, and satisfies the requirements of operation conditions of the kiln mouth use condition. The service life ismore than one year.

The invention relates to a high-thermal shock resistance composite kiln mouth castable comprising, by weight, 13-25 parts of magnesium-iron brick granules, 15-25 parts of magnesium-aluminum brick granules, 10-15 parts of andalusite, 18-28 parts of cordierite, 10-20 parts of alumina powder, 3-5 parts of silica fume, 5-10 parts of light calcined magnesia powder, 4-8 parts of a complexing magnesium-aluminum adhesive. By means of the formula, the product has great thermal shock resistance, high mechanical strength and great chemical corrosion resistance, is low in porosity and is long in service life.

The invention relates to a method for preparing cold rolled household electrical appliance sheet with bell-type furnace, which in detail relates to a household electrical appliance sheet with high yield ration and high percentage of elongation mainly by controlling steel chemical component and adjusting bell- type funance annealing process. The comprised chemical component and weight percentage are follows: C 0.03-0.15, Si<=0.034, Mn0.17-0.65, P<=0.025, S<=0.02, Als0.02-0.055, N<=0.006 and Nb<=0.03. The annealing process comprises: temperature 200- 400 Deg. C, time 1- 2 hours; 400- 600 Deg. C, 4- 5 hours; 600- 710 Deg. C, 4- 6 hours; thermal insulating at 710 Deg. C; 710- 670 Deg. C, 3- 4hours; thermal insulating at 670 Deg. C for 3- 5 hours; water injecting at 400- 300 Deg. C; tapping temperature is 100- 50 Deg. C. The performance of prepared cold rolled household electrical appliance sheet reaches: yield strength 304 Mpa; strength for extension 379 Mpa, elongation 30%, rigidity HRB 63, and increased income of over100 yuan/ t.

The invention provides a plastic cooling liquid water pipe and a preparation method thereof, relating to the technical field of cooling pipes. The plastic cooling liquid water pipe comprises a first polyolefin pipe and a second polyolefin pipe, wherein the first polyolefin pipe is coated with the second polyolefin pipe, and when the first polyolefin pipe and the second polyolefin pipe are made ofthe same material, a reinforcing layer is further arranged between the first polyolefin pipe and the second polyolefin pipe. The plastic cooling liquid water pipe provided by the invention can be recycled, is light in weight, low in cost and low in permeability, and more conforms to the development trend of a safe, environment-friendly and weight-reducing whole vehicle.

The invention discloses a one-fire hot charging heat treatment process for a ferrite stainless steel hot-rolled hot-rolled plate, and belongs to the technical field of stainless steel production. According to the heat treatment process, after hot rolling, a hot coiled plate is directly loaded into a preheated movable cover type annealing furnace or tempering furnace to be subjected to heat treatment, so that the technical defect that hot rolling and annealing are separated in the prior art is overcome, and the coiled plate subjected to cold coil heating heat treatment is non-uniform in performance; and the structural ferritic stainless steel with the yield strength of 400-500 MPa, which cannot be realized by a traditional annealing method, is produced, and a large amount of heat energy is saved. Through a simple and convenient one-fire hot charging heat treatment continuous process, the ferrite stainless steel coiled plate can respectively meet the performance requirements of cold rolling and structural steel by controlling two heat treatment temperatures and time. The process method is suitable for large-scale production, less in furnace occupation time, low in energy consumption and beneficial to rapid switching of heat treatment temperature and time of steel coils with different components, product quality is improved, and an efficient rolling process is matched.

The invention relates to a capacity expanding method for a photocatalysis waste-water degrading reactor capable of realizing UV radiator state self-inspection, and belongs to the technical field of waste water processing. In present correlated background technologies, there are the problems that: the function state of an electrodeless lamp is difficult to know timely; an electrodeless lamp placing chamber, that is a quartz tube chamber, has a water bursting problem; microwave energy is wasted; single pot waste-water processing capacity is smaller; catalysts loss; degradation terminal point is difficult to determine; secondary ozone flows crossly and corrodes magnetrons; and the like. The capacity expanding method aims at the problems. The capacity expanding method comprises the main steps: introducing one end of an optical fiber to the periphery of a quartz tube, making the tip of the optical fiber direct to inner cavity of the quartz tube, and making the other end of the optical fiber press close to and direct to the detection window of a ultraviolet light intensity detector. The capacity expanding method also comprises other multiple steps. The capacity expanding method of the invention helps to realize package solution on the series of the problems.

The invention relates to a method for expanding a photocatalytic wastewater degradation reactor for resisting water burst in a lamp zone and belongs to the technical field of wastewater treatment. The problem that water bursts in a tube cavity of a quartz tube, namely an electrodeless lamp accommodating cavity and the problems that the microwave energy is wasted, the single-pot wastewater treatment amount is small, the catalytic agent is lost, the degradation endpoint is difficultly distinguished, a magnetron is corroded by reverse channeling of secondary ozone and the like exist in the existing related technology, and the scheme aims to solve the series of problems. According to the scheme, the method mainly comprises the following steps: connecting a micro diaphragm pump used for supplementing air in a normal state at low power consumption and low flow to an air channel communicated with the tube cavity of the quartz tube in a bypass mode; separating the microwave irradiation area; expanding the size of the reactor, gradually intercepting the catalyst particles by employing an external cascade filter; sensing the reaction process by employing an ozone sensor, and immediately closing the related power supply when the degradation endpoint is reached; and separating a waveguide tube by employing a wave-transparent airtight separation plate so as to prevent the reverse flow of secondary ozone from corroding the magnetron.

The invention relates to a spray coating for a cement kiln preheater. The spray coating comprises the following components in parts by weight: 20-33 parts of microporous mullite, 30-38 parts of alumina hollow spheres, 10-20 parts of calcium aluminate cement, 8-12 parts of alumina powder, 4-8 parts of zirconite powder, 3-6 parts of soft clay, 2-5 parts of silica powder and 1-2 parts of lithium chloride. The spray coating for the cement kiln preheater, prepared by the invention, has relatively strong erosion resistance and good thermal shock stability; the volume density and the heat conductivity coefficient are low, the heat preservation and insulation performance is good, the use condition requirements of the cement kiln preheater are well met, the expected service life of the preheater exceeds two years, and the stability of cement kiln production operation is effectively guaranteed.

The invention relates to a photocatalysis wastewater degradation reactor capacity expansion method capable of protecting a magnetron from being corroded and belongs to the technical field of wastewater treatment. An existing related technology has the problems that a contact agent is lost, microwave energy is wasted, the processing amount of single-pot wastewater of a reactor is small, a degradation finished point is difficult to recognize, a contact agent agglomerate can not be dissipated in situ, the contact agent agglomeration can not be observed in time, the secondary ozone reverse fluid channeling corrosion magnetron and the like. The scheme aims at the series problems. The method comprises the main steps: closing up a microwave irradiation by a metal cage; expanding the size of the reactor; gradually intercepting the contact agent by utilizing a multi-grade filter; dissipating the contact agent agglomerate in situ by utilizing low-frequency ultrasonic waves sent from the bottom of the reactor, meanwhile, cleaning a quartz tube; monitoring a reaction progress by utilizing an ozone sensor and automatically controlling a related power supply switching mechanism by utilizing a sensing electric signal; carrying out self detection on an agglomerate main induction parameter; separating a waveguide pipe in an air-tight manner by utilizing a wave-transparent plate including the quartz tube and the like to avoid the zone reverse fluid channeling and prevent the magnetron from being corroded.