60results about How to "With anti-oxidation" patented technology

The invention provides a rapid solidification metal strip production device and a method thereof. Mother alloy is smelted in a vacuum melting furnace, strip pressure spraying is carried out through a spray nozzle, strip spraying atmosphere protection is carried out at the spray nozzle, and a middle liquid-holding crucible is arranged in a jetting ladle and can compensate alloy solutions for a spray nozzle ladle crucible. Mother alloy smelting is finished in the vacuum melting furnace firstly, then the alloy solutions are poured into the liquid-holding crucible in the jetting ladle, and a gate valve between the vacuum melting furnace and a spray nozzle ladle is shut off. Then the mother alloy solutions are compensated for the spray nozzle ladle crucible from the middle liquid-holding crucible, protection gases are injected into the spray nozzle ladle, pressurization is carried out, and under the action of pressure, and the metal solutions are sprayed out from spray nozzle seams in the spray nozzle ladle to solidify so as to form a strip on the surface of a water-cooling copper roller rotating at a high speed. Protection is carried out through protective atmosphere at a smelting pit area where solidification occurs. The device has the advantages of being anti-oxidation and high in yield, products have high performance and the yield is much higher than that of a traditional full-vacuum strip casting mode.

The invention discloses a mobile terminal antenna module group comprising a substrate, a high-frequency antenna and signal processing modules. The substrate comprises multiple conductor layers and multiple dielectric layers. The high-frequency antenna comprises high-frequency antenna subunits. The signal processing modules and the high-frequency antenna subunits are consistent in number. Each high-frequency antenna subunit comprises a high-frequency antenna radiator and a high-frequency antenna reference ground. The high-frequency antenna radiators are arranged on the first conductor layer orsimultaneously arranged on other conductor layers. The high-frequency antenna reference grounds are arranged on the second conductor layer or simultaneously arranged on other conductor layers, and theconductor layers equipped with the high-frequency antenna reference grounds are electrically connected through first metalized through holes. The high-frequency antenna radiators and the high-frequency antenna reference grounds are electrically connected with the signal processing modules through a first feed line and a second feed line. The signal processing modules transmit the processed high-frequency antenna signals to a post-processing circuit through a third feed line and a signal transmission line.

The invention provides a filtering sewage intercepting basket of a gutter inlet. The filtering intercepting basket comprises a basket body and a filtering net basket arranged on the lower portion of the basket body and matched with the basket body, overflow openings are formed in the basket body, and a connecting part is arranged on the upper portion of the basket body and connected with a rainwater well. The filtering sewage intercepting basket of the gutter inlet is economical and practical, changing is convenient, and the sewage cleaning effect is good; a form of a geotechnical cloth bag is adopted as a filtering material in the filter net basket, the filtering material is not prone to be polluted, and only the outer side of geotechnical cloth needs to be cleaned, so that fast filtering and sewage intercepting of rainwater are promoted; through arrangement of the overflow openings, the drainage capability cannot be lowered due to debris blocking.

The invention discloses a water-resistant paint for steel structure color steel tile. The water-resistant paint for steel structure color steel tile comprises the following ingredients in weight parts: 70-78 parts of propenoic acid latex, 5-8 parts of heavy calcium carbonate, 10-13 parts of titanium dioxide, 8-11 parts of glass beads, 0.1-0.3 part of thickener, 0.3-0.5 part of di-n-butyl phthalate, 0.1-0.2 part of ammonia neutralizer, 0.1-0.5 part of cellulose, 0.1-0.5 part of preservative agent, 0.1-0.3 part of foam killer, and 2-4 parts of water. The water-resistant paint has the benefits that the problems of high water seepage maintenance cost and short service life which are caused by the rusting of iron nails on the conventional metal color steel tile roof are solved; the structure performance of the water-resistant paint is improved; a waterproof layer with good overall performance is formed on a metal steel structure construction; and the water-resistant paint has the characteristics of good waterproof quality, high temperature resistance, no crack at 80 DEG C, good fire resistance, good thermal insulation, good corrosion prevention, good oxidation prevention, good rust prevention, good age resistance and long service life.

The invention relates to environment-friendly high-efficiency composite polishing wax for polishing metal and non-metal surfaces and a production method thereof. The composite polishing wax comprises the following raw materials by weight ratio: 65 to 75 of stearic acid, 8 to 12 of chromic oxide polishing powder, 10 to 25 of paraffin and 2 to 3.5 of lanolin. The method comprises the following steps: putting the paraffin and the stearic acid in proportional amounts into enamelware and heating to 90 DEG C 120 DEG C to melt the paraffin; adding the chromic oxide polishing powder, stirring uniformly and adding the lanolin under the stirring condition for a chemical modified complex reaction under the condition of 110 DEG C + / - 5 DEG C and the reaction time of 2h + / - 0.5h; and guiding discharge grouting to a precast die after the reaction and guiding the die into a water tank for cooling so as to be solidified into a block product. The product does not contain harmful solvent, is safe and convenient to manufacture, reduces energy consumption and does not pollute the environment, thereby being suitable for various polishing modes.

The invention relates to a chemical used for aluminum and magnesium alloys, particularly relates to a cleaning agent having cleaning, degreasing and brightening functions for aluminum alloys and magnesium alloy, and belongs to the technical field of chemicals. The agent includes, by weight, 8-10 parts of an organic amine, 3-7 parts of a water-soluble organic solvent, 3-8 parts of a corrosion inhibitor, 0.5-1 part of a color change preventing agent, 2-4 parts of fatty acid soap, 1-3 parts of a surfactant, 3-6 parts of a complexing agent and 60-80 parts of a solvent. The anti-oxidation, anticorrosion, degreasing and brightening agent for aluminum and magnesium alloys, which is reasonable in compatibility, has good cleaning and polishing effects on aluminum alloys and magnesium alloys, makesa cleaned sample bright and clean, and protects the sample from being blackened or darkened in a certain period of time after cleaning, and allows a material to have deactivation, anti-oxidation, andanticorrosion effects and the like. The disclosed degreasing and brightening agent does not contain sulfur, phosphorus, or the like, and is low in environment pollution, and after-treatment of a wasteliquid is simple.

The invention discloses a polyurethane waterproof flame-retardant paint and a preparation method thereof. The paint comprises polyurethane prepolymers, diacetone acryloamide, buty stearate, titanate coupling agent TMC-311 and titanium pigment. The paint further comprises polydimethyl siloxane, white carbon black, mixed solvent and flame-retardant materials. The preparation method comprises the following steps: dissolving the diacetone acrylamide by ethanol of which the volume concentration is 65-80%, wherein the adding amount of the ethanol is 1.5 kilograms in per kilogram of diacetone acrylamide on the basis of weight; mixing the dissolved diacetone acrylamide with the polyurethane prepolymers in a reaction kettle, wherein the reaction temperature is 75-119 DEG C and the reaction time is 1.2-1.5 hours; adding the titanate coupling agent TMC-311 into the mixture and further reacting for 3-6 hours; then adding buty stearate, the rutile-type titanium pigment, polydimethyl siloxane, the flame-retardant materials, the white carbon black and the mixed solvent into the mixture and uniformly mixing, so that the polyurethane waterproof flame-retardant paint product is obtained. The paint prepared by the preparation method is good in waterproof and flame-retardant effects, friendly to the environment and not easy to age.

The invention belongs to the technical field of food fresh keeping, and particularly discloses a fresh keeping method for honeybee pupae. The fresh keeping method for the honeybee pupae comprises the following specific steps of 1 preprocessing, wherein high-quality honeybee pupae are taken out of a honeycomb, washed with deionized water, soaked with a salt solution and then leached, and preprocessed honeybee pupae are obtained; 2 processing with a fresh keeping agent, wherein the honeybee pupae preprocessed in the step 1 are put into the fresh keeping agent to be soaked and then taken out to be air-dried, and the fresh keeping agent is prepared by uniformly mixing a waxberry extracting solution, a hawthorn extracting solution, L-ascorbic acid, chitosan, sodium tripolyphosphate, food-grade sodium benzoate and sterile water according to a certain weight part ratio; 3 refrigerated preserving, wherein the honeybee pupae processed with the fresh keeping agent in the step 2 are contained in sterile fresh keeping bags, and the sterile fresh keeping bags are placed in a refrigerator for refrigerated preserving. According to the fresh keeping method, fresh keeping is conducted on the honeybee pupae mainly by adopting the fresh keeping agent with the effects of sterilization, disinfection and oxidization prevention, breeding of bacteria and viruses of the honeybee pupae can be effectively inhibited, the quality guarantee period of the honeybee pupae is prolonged, and the optimal appearance and mouthfeel effect of the honeybee pupae are kept.

The invention discloses a circuit board tin spraying process, which comprises the steps of microetching, green oil hole plugging, welding resisting, board baking and tin spraying, wherein the microetching acts on the hole wall and the plate surface; the green oil hole plugging is double-side hole plugging; during the welding resisting, a layer of ink protecting layer is formed on the surface of a circuit board; the board baking adopts a segmented board baking method adopting sequential progressive temperature increase from 60 DEG C to 150 DEG C; the time interval between the tin spraying and the board baking is within 10 minutes. The tin spraying process has the advantages that deoiling phenomenon cannot occur, and meanwhile, the insulation, anti-oxidation and attractive appearance effects are also achieved.

The invention relates to the field of ground-wall construction processes and provides a construction method of using color concrete to cover an embossed surface. The construction method includes: step 1, cleaning the surface of base layer concrete; step 2, pouring binding mortar on the surface of the base layer concrete, and scraping flat; step 3, pouring surface layer concrete, namely pouring concrete slurry on a binder, spreading the concrete slurry flat, and performing scraping and press-polishing to form the surface layer concrete; step 4, embossing the surface layer concrete, namely when the surface layer concrete is not adhesive, spraying a liquid demolding agent on the surface of a mold and the surface of the surface layer concrete, flatwise placing the mold on the surface layer concrete, pressing to enable patterns of the mold to be printed on the surface of the surface layer concrete, and lifting up the mold after embossing; step 5, spraying pigment on the surface of the surface layer concrete; step 6, sealing the surface of the surface layer concrete. The construction method is simple in construction step, reasonable in design, simple and easy to implement and easy to operate.

The invention discloses a high-sensitivity film thermocouple sensor chip and a making method thereof. The high-sensitivity film thermocouple sensor chip comprises a shell. The shell is internally provided with a cavity for placing an alloy film and an annular hole for placing graphene. The annular hole is at the periphery of the cavity. The cavity is internally provided with an alloy film which is made into a film thermocouple. The annular hole is internally provided with graphene. The shell includes three sections: a test probe, a middle circular truncated cone, and a lead end. By designing a new sensor structure, temperature signals can be measured for a long time in a dynamic high temperature field. Through forced heat transfer, a large thermal gradient is formed between the cold end and the hot end of the thermocouple film, and the sensitivity of the film thermocouple is enhanced. The sensor chip has the characteristics of high sensitivity, small size, resistance to high temperature, anti-oxidation, high Seebeck coefficient, and applicability to dynamic test. The problem in the prior art that the film thermocouple is of low sensitivity due to too high temperature at the cold end in a dynamic high temperature field test environment is solved.

The invention provides a magnetic isolation sheet with a protective film. Each side of the outer surface of the magnetic isolation sheet is attached with a protective film. The protective film is a rubber protective film. The rubber protective film is made of rubber sprayed or dipped on the outer surface of the magnetic isolation sheet Formed by curing the paint, the protective film can also be a PET protective film. Regardless of the shape of the magnetic isolation sheet, the protective film and the magnetic isolation sheet are completely matched, and can protect the magnetic isolation sheet in all directions. It has the functions of waterproof, acid and alkali resistance, and oxidation resistance, and provides good insulation performance; It has good temperature resistance, and the method of attaching a protective film on the surface of the magnetic isolation sheet is simple and easy, with high efficiency and low cost.

The invention discloses a protection film for a high-power concentrating photovoltaic system receiver. The protection film is an Al2O3 film and is arranged on the outer layer of the receiver by the atomic layer deposition technology. The receiver comprises a copper-coated ceramic panel, a solar cell, a Shaw Schottky diode, gold threads and the like. The protection film coats on the outer surface of all components contacting with the air. The Al2O3 film is produced by the ALD (atomic layer deposition) technology is arranged on the upper surface of the receiver and coats on components and circuits on the surface of the receiver. According to the protection film, effects of insulation, water proofing, oxidation resistance and thermal conductivity can be achieved by adjusting parameters of different precursor acting time, air pressure, thickness and the like during Al2O3 film production, and the protection film of the receiver is an ideal one.

The invention relates to the field of a floor construction technology, and provides a construction method of a colored concrete floor. The construction method comprises the following steps of step 1, paving templates on the floor; step 2, paving concrete; step 3, printing decorative patterns on the concrete, wherein the step 3 comprises the following processes of sprinkling liquid mold lubricants on the surface of a mold and the surface of the concrete when the concrete is not sticky, horizontally putting the mold on the concrete, pressing the mold so that the decorative patterns of the mold are printed on the surface of the concrete, and uncovering the mold after the decorative patterns are printed; step 4, sprinkling pigment on the surface of the concrete; and step 5, performing sealing treatment on the surface of the concrete. The method disclosed by the invention is simple in construction steps, the whole construction technology is reasonable in design, and besides, the construction process is simple and practicable and easy to operate.

The invention provides a famotidine inclusion compound and a preparation method. The inclusion compound comprises famotidine and glyceryl behenate. The preparation method comprises the following steps: the glyceryl behenate is heated to 80 DEG C through water bath or steam, stirring and fusion are performed on the glyceryl behenate at the temperature of 80 DEG C; the famotidine, which is equal to the glyceryl behenate in weight, is added into the fused glyceryl behenate, stirring and mixing are performed for 25-35 minutes at the temperature of 80 DEG C or homogenizing is performed through a homogenizer; the mixture prepared through the step 2 is fed into a spray dryer for drying before cooling, so that the famotidine inclusion compound is obtained. The famotidine inclusion compound has the benefits as follows: because the glyceryl behenate has the characteristics of hydrophobicity, anti-oxidation, hydrolysis prevention and the like, and is used for famotidine inclusion, the water absorption capacity of the famotidine self is reduced, and the famotidine is separated from other substances in the compound, the stability of the drugs is enhanced, the drug therapeutic effect is maintained, the bitter taste of the famotidine is covered up, and the bad taste during taking is reduced.

The invention discloses a refrigerator handle which is mainly composed of a refrigerator handle substrate, a bonding layer and a natural material layer. The refrigerator handle substrate is fixedly connected with the natural material layer through the bonding layer. The manufacturing method of the refrigerator handle comprises the following steps of refrigerator handle substrate forming, natural material layer manufacturing, preforming, attaching and pressure maintaining processing. The refrigerator handle and the manufacturing method thereof have the advantages that compared with a traditional imitation natural material technology, real natural materials are achieved on the refrigerator handle, the pursuit of people for the real natural material decoration effect is satisfied, and the product grade is improved.

The invention discloses a vacuum freshness retaining facial mask which comprises a binary package bottle and a facial mask paper package bag. The binary package bottle comprises a bottle body, a facial mask liquid container and a binary valve, the facial mask liquid container is arranged inside the bottle body, a cavity is arranged between the inner wall of the bottle body and the outer wall of the facial mask liquid container, the binary valve is fixed to an opening at the upper portion of the bottle body in a sealed manner, the facial mask liquid container is installed at the lower end of the binary valve and used for loading facial mask liquid, and a spraying nozzle is arranged at the upper end of the binary valve; and the facial mask paper package bag is internally provided with at least of one piece of facial mask paper, and the interior of the facial mask paper package bag is in the vacuum state. According to the facial mask, the facial mask liquid and the facial mask paper are independently packaged in the vacuum state, adding of a corrosion remover of the facial mask can be avoided, the aim of freshness retaining of material component in traditional facial mask essence canbe achieved, appropriate adding according to actual using quantity of each person can be achieved, the facial mask can continuously supplement for the essence according to the weather and skin conditions, and more convenience is brought in use.

The invention provides a donepeziloral disintegrating tablet and a preparation method thereof. The donepeziloral disintegrating tablet comprises a docosanoic acid glycerol ester inclusion compound of donepezil, and an auxiliary material layer cladding the inclusion compound; the donepezil is included through a docosanoic acid glycerol ester, so that the contact of the donepezil with other auxiliary materials, air and moisture is reduced, and the degradation of the donepezil can be slowed down; meanwhile, during a preparation process, the donepezil does not contact with the moisture, so that the unstabilizing factor of quality is reduced; a mixing and tableting process is simple so as to be beneficial to improving industrial automation degree, the obtained donepeziloral disintegrating tablet has the characteristics that the stability is excellent, related substances and contents meet the requirement, and an effect of covering a bad taste is good.

The invention discloses a transparent fireproof coating which comprises the following components in percentage by mass: 40-55% of amino acid sodium phosphate resin, 30-38% of inorganic phosphate, 4-6% of thickening agent, 3-5% of dispersing agent and 3-5% of film forming agent. According to the transparent fireproof coating disclosed by the invention, the amino acid sodium phosphate resin and the inorganic phosphate are used as base materials, the amino acid sodium phosphate resin also serves as a foaming agent and a charring agent, and the inorganic phosphate also serves as a catalytic dehydrating agent; and by adding the dispersing agent and the film forming agent, the dispersity and film forming property of the system are improved. The coating disclosed by the invention is transparent liquid and can be self-dried at normal temperature; and the coating has good flame resistance and thermal insulation as well as an obvious fireproof effect.

The invention discloses a technique for forming a protective coating on an electronic ink screen. The technique comprises the following steps that firstly, a connecting finger of the electronic ink screen is coated and covered; secondly, baking and moisture dispelling are conducted for removing moisture on the electronic ink screen, and the electronic ink screen is baked for 2-3 h at the temperature of 50-60 DEG C; thirdly, a coating object at the connecting finger of the electronic ink screen is clamped by a clamping buckle, the clamping buckle is hung on a metal rack, and the metal rack is put into a coating machine; and fourthly, material feeding is conducted for gas phase deposition coating. The technique is simple, the thin film coating which is uniform in thickness, dense, free of needle holes, transparent and unstressed, does not contain addition agents, does not damage a workpiece and has excellent electric insulativity and protective property can be formed on the surface of the electronic ink screen, the protective effects of moisture prevention, mold prevention, corrosion prevention, water prevention, salt-spray prevention, static prevention, or oxidation prevention and the like are achieved, and the service life of the electronic ink screen is prolonged.

The invention relates to an air conditioner connecting pipe with a protective structure. The air conditioner connecting pipe comprises a copper pipe, pipe joints and a protective layer coated the outer side of the copper pipe, wherein the protective layer comprises an anti-corrosive protection layer, and the anti-corrosive protection layer consists of an electrophoretic layer and a heat-shrinkable sleeve film; the electrophoretic layer coats the outside surface of the copper pipe, and the heat-shrinkable sleeve film coats the outside surface of the electrophoretic layer; a plug is arranged at each pipe mouth of the copper pipe, one end of each plug is matched with the copper pipe in a plugging manner, and the plugs are made from rubber and are conical. The air conditioner connecting pipe has oxidation resistance, and corrosion or blockage to the pipe caused by dust or harmful gases can be prevented.

The invention discloses a graphene vertical heterojunction device and a preparation method thereof. The graphene vertical heterojunction device is composed of a graphene layer, a first heterogeneous layer and a support substrate having a through hole. The graphene layer is arranged on the surface of the support substrate; the first heterogeneous layer is arranged in the through hole and is combined with the graphene layer physically to form the first heterojunction. In addition, the preparation method includes the following steps: step one, opening a through hole perpendicular to the surface of a support substrate in the support substrate; step two, transferring suspended graphene to the surface of the support substrate; and step three, preparing a first heterogeneous layer in the throughhole formed in the support substrate. With the method disclosed by the invention, problems of interface oxidation, adsorption and unevenness during traditional preparation process of the graphene vertical device can be solved; and the prepared vertical heterojunction device has advantages of low resistance, good anti-oxidation performance, flat interface, compact structure and low cost and the like.

The invention discloses a storage method of fresh silkworm chrysalis. The storage method comprises the following steps: (1) manually selecting clean fresh silkworm chrysalis; (2) soaking the selectedfresh silkworm chrysalis in a soaking liquid for 10-15 minutes and then taking out, and naturally airing, wherein the soaking liquid comprises the following raw materials in parts by weight: 1-5 partsof citric acid, 0.5-2 parts of konjac glucomannan, 1-5 parts of potassium hydrogen tartrate, 0.2-1 part of tea polyphenol, 8-15 parts of clove extracting liquid, 5-10 parts of Peppermint extracting liquid, and 20-30 parts of water; (3) transferring the soaked fresh silkworm chrysalis into a quick-freezing storage for quick freezing, wherein the temperature of the quick-freezing storage is -26 DEGC to -18 DEG C, and the quick freezing time lasts 1.5-2.5 hours; and (4) putting the quick-frozen fresh silkworm chrysalis into a sterile freshness-protection bag, putting a refrigeration storage forstoring at the temperature of -18 DEG C to -12 DEG C. The storage method of fresh silkworm chrysalis is simple and convenient to operate and enables effective sterilization, bacteria inhibition and oxidization prevention, the storage time of fresh silkworm chrysalis can be prolonged, and the best flavor and quality of fresh silkworm chrysalis can be kept.

The invention discloses a safety fence for a three-dimensional warehouse. The safety fence comprises a fence body and upright columns, wherein the fence body is latticed and is fixed on the upright columns through clamping hooks, and a base is fixedly connected to the lower end of each upright column. The safety fence for the three-dimensional warehouse is simple in structure and is easy to implement; the fence body is fixed on the upright columns through the clamping hooks, so that the safety fence is easy to operate and convenient to mount; and the fence body is latticed and is made of an epoxy resin material, so that the safety fence has the advantages of insulation, electrostatic prevention and oxidation prevention, and the fence body is light in dead weight, low in processing cost and attractive and delicate in whole appearance.

The invention discloses high-efficiency type rust removal liquid. The rust removal liquid is composed of 1.8-2.8 kg of 60-mesh glass beads, 40-60 g of washing powder, 1.9-2.4 kg of rust-proof liquid and 45-65 kg of water. Due to the adoption of the high-efficiency type rust removal liquid mentioned above and a use method of the high-efficiency type rust removal liquid, dirt on the surfaces of workpieces is rapidly removed, and pollution to the environment is little.

The invention discloses electric welding machine anti-corrosion protective paint. The electric welding machine anti-corrosion protective paint comprises the following raw materials in parts by weight:5-25 parts of methylamino propanol, 2-12 parts of polyacrylamide, 2-10 parts of cellulose acetate butyrate, 3-13 parts of magnesium hydrate, 3-13 parts of dimethyl siloxane, 2-8 parts of calcium phytic acid, 1-11 parts of attapulgite, 3-13 parts of methylamino propanol, 3-15 parts of waterborne metal lubricating powder, 2-8 parts a PH regulator and 1-7 parts of a coalescing agent. The electric welding machine anti-corrosion protective paint has the advantages of good using effect, oxidation resistance, simplicity in preparation and the like.

The invention relates to a novel deodorizing device. According to the novel deodorizing device, four threaded mounting studs are uniformly distributed on a rear shell at intervals along the peripheral direction, a screw is mounted in each threaded mounting stud, so that the rear shell is connected to a control circuit board in a meshing manner, an ozone dissipation hole is formed in a front shell, a small fan and air vent holes are also arranged, ozone produced by an ozone generator escapes from the ozone dissipation hole, and the threaded mounting studs adopt the multi-section compound drawing angles. According to the novel deodorizing device, the ozone generator is arranged, directly contacts the air, and is of open type, so that the ozone production efficiency is high, the heat dissipation is extremely good, the produced ozone has extremely good diffusibility and good deodorizing effect, and the deodorizing efficiency is improved; in addition, the threaded mounting studs adopt the multi-section compound drawing angles, the structure enables a mold to be smoothly drawn out after a workpiece is formed, the side wall surface of the workpiece is prevented from being damaged, the areas of round holes in the tops of the threaded mounting studs can not be too large, so that the artistic appearance can not be influenced, the stability of the workpiece is also prevented from being influenced, and the threaded mounting studs are simple in structure, and convenient to manufacture, use and mount.

The invention relates to a novel deodorizing device. According to the novel deodorizing device, four threaded mounting studs are uniformly distributed on a rear shell at intervals along the peripheral direction, a screw is mounted in each threaded mounting stud, so that the rear shell is connected to a control circuit board in a meshing manner, an ozone dissipation hole is formed in a front shell, a small fan and air vent holes are also arranged, ozone produced by an ozone generator escapes from the ozone dissipation hole, and the threaded mounting studs adopt the multi-section compound drawing angles. According to the novel deodorizing device, the ozone generator is arranged, directly contacts the air, and is of open type, so that the ozone production efficiency is high, the heat dissipation is extremely good, the produced ozone has extremely good diffusibility and good deodorizing effect, and the deodorizing efficiency is improved; in addition, the threaded mounting studs adopt the multi-section compound drawing angles, the structure enables a mold to be smoothly drawn out after a workpiece is formed, the side wall surface of the workpiece is prevented from being damaged, the areas of round holes in the tops of the threaded mounting studs can not be too large, so that the artistic appearance can not be influenced, the stability of the workpiece is also prevented from being influenced, and the threaded mounting studs are simple in structure, and convenient to manufacture, use and mount.

The invention relates to the technical field of stainless steel welding, and discloses special tin soldering paste for weldable stainless steel. The special tin soldering paste comprises 35-50 parts of alloy powder, 10-20 parts of soldering flux, 10-20 parts of a silicate solution, 5-10 parts of ultramicro inorganic metal oxide, 7-15 parts of tetrachloroethylene solvent and 20-30 parts of a self-heating agent. The self-heating agent is prepared from, by weight, 40-50 parts of iron powder, 10-20 parts of wood flour, 5-10 parts of activated carbon, 5-15 parts of salt and 10-20 parts of water. By adding the self-heating agent, after the tin soldering paste is extruded, the tin soldering paste makes contact with outside air, heat released by rapid reaction of iron powder and oxygen in the air is reduced, the heat release amount is larger than the heat dissipation amount, temperature rise is caused, various solid powder particles are evenly mixed and dispersed through the water and the wood flour, and a contact surface for gas-solid two-phase reaction is provided. The iron powder can react completely, the heat capacity of the formula is improved, the surface of a welding part can be preheated in the using process of the tin soldering paste, and cracks are relieved.

The invention discloses a grave filling material which is prepared from 15-25% of rhizoma nardostachyos, 3-9% of cloves, 6-9% of dalbergia wood, 6-9% of dutchmanspipe roots, 3-9% of sandalwood, 3-9% of realgar, 3-6% of olibanum, 3-6% of rhizoma kaempferiae, 3-9% of cinnabar, 15-25% of calcium carbonate, 2-9% of silicate, 1-2% of silicon dioxide and 2-3% of iron trioxide. The material can effectively solve the technical problem that metal products in cinerary caskets or coffins are prone to oxidization and rust.