30results about How to "No scorching" patented technology

The invention discloses a high-dispersity high-concentration nylon-based halogen-free flame-retardant master batch and a preparation method thereof. The high-dispersity high-concentration nylon-based halogen-free flame-retardant master batch comprises the following components in parts by mass: 20%-45% of a nylon resin carrier and 25%-60% of organic hypophosphite, wherein the mass percentage content of the melamine derivative is 15%-40%, the relative viscosity of the nylon resin carrier is 1.8-3.0, and the effective concentration of the flame-retardant masterbatch is 50%-75%. By screening nylon resin, a lubricating dispersant and an anti-yellowing agent, high filling performance of the nylon carrier is achieved, the organic hypophosphite and melamine derivative compound flame retardant masterbatch is prepared, the effective concentration is 50%-75%, and the flame retardant efficiency is high. The invention also provides a preparation method of the halogen-free flame-retardant master batch.

The invention discloses a thiadiazole derivative for vulcanized cross-linking of a halogen-containing polymer. The structural formula of the thiadiazole derivative is shown in a formula (1) or (2), wherein R is aryl group or C1-17alkyl group. The thiadiazole derivative for the vulcanized cross-linking of the halogen-containing polymer can be used as a vulcanized agent.

The invention discloses a pearl wool grooving device. The pearl wool grooving device comprises a framework, a lifting mechanism, an overturning mechanism, an upper grooving mold, a lower grooving moldand a control module; a hot cutter is assembled on the upper grooving mold, and is arranged in cutter rows with multiple cutter types; the framework comprises a frame, a base plate and a working platform; a loading tray and a taking tray are arranged in front of the working platform; the base plate is provided with an electric control box; the control module is arranged at the front part of the frame; the lower grooving mold and an inner frame are arranged on the working platform; the lifting mechanism is arranged on the inner frame, and is provided with the overturning mechanism through a lifting connection plate; and the overturning mechanism is provided with the upper grooving mold. The pearl wool grooving device adopts an automatic grooving device for grooving of multiple pearl wools,can once cut various grooves, randomly adjusts the production speed, is stable and flexible in mechanical operation and smooth in trimming without cokes, once finishes automatic feeding and collection, and is high in groove cutting efficiency.

The invention relates to the field of rubber materials, and discloses an acid-resistant rubber composition and application thereof, vulcanized rubber as well as a preparation method and application thereof, the composition contains a rubber matrix, powdered nitrile rubber, a reinforcing agent, calcium sulfate whiskers, a vulcanizing agent, a vulcanization accelerator, a vulcanization activator and a plasticizer, and optionally contains an anti-aging agent, the rubber matrix is a combination of brominated nitrile rubber and ethylene propylene diene monomer, and the reinforcing agent is a combination of carbon black and white carbon black. The vulcanized rubber prepared by applying the rubber composition disclosed by the invention is excellent in acid resistance and good in basic mechanical property.

The invention discloses a smoke-free gas barbecue grill. The smoke-free gas barbecue grill comprises a grill body, a gas division device and a grill grid, wherein an opening of which the upper part and the lower part penetrate through each other is formed in the furnace body; the gas division device is fixed in the opening; the grill grid is movably erected on the opening; the gas division devicecomprises a main pipeline and a plurality of branch pipelines communicated with the main pipeline; one end, away from the main pipeline, of the corresponding branch pipe is sealed and a column of exhaust holes are formed in the upper ends of the branch pipelines; an inner cavity communicated with the main pipeline is formed in the grill body; a gas pipe communicated with the main pipeline is arranged in the inner cavity; a gas inlet which enables the inner cavity to be communicated with the outside is formed in a side wall of the grill body. The smoke-free gas barbecue grill also comprises metal heat conducting pieces corresponding to the branch pipelines; the metal heat conducting pieces are detachably buckled and covered on the upper end surfaces of the branched pipelines; the cross sections of the metal heat conducting pieces are arched; an oil receiving tray is arranged under the opening. When the grill is used, heat is uniform, oil smoke is avoided, and the grill is clean and sanitary, and is convenient to clean.

The invention relates to a production process of resin pipe fittings, in particular to a one-time injection molding process and equipment for chlorinated polyvinyl chloride elbow pipe fittings. The process includes batching, drying, injection molding, pressure holding, and mold opening process. During the injection molding process, the heating part of the barrel of the injection molding machine is divided into seven sections, and the temperature range of each section is 150-155°C and 168-173°C. , 162~167℃, 160~165℃, 155~160℃, 150~155℃, 145~150℃, the mold temperature is controlled between 60~70℃; the injection pressure during injection molding is divided into three sections, respectively 58MPa , 65MPa and 80MPa. The pitch of the injection molding machine screw used in the method is equal to the diameter of the screw, the feeding section accounts for 25% of the total length, the compression section accounts for 50% of the total length, and the homogenization section accounts for 25% of the total length. The invention realizes one-time injection molding of DN400 large elbow pipe fittings through the improvement of process and equipment.

The invention discloses a forming method of a trackless lampshade. The method comprises the following steps of: arranging a cavity corresponding to the shape of a cast in a mould; taking the opened edge of the corresponding cast as a parting surface to arrange a charge hole at a certain position of the parting surface; injecting a molten casting material in the cavity of the mould through the charge hole; locally heating the cavity in the injection process, wherein the heating position is a position with highest advance resistance of a forward material; and, when advance resistances are same, the heating position is the longest stroke from the charge hole to the parting surface of the forward material, therefore, the forward materials in all positions are collected on the parting surface; and finally, obtaining the trackless cast. By using the method disclosed by the invention, all the forward materials of the casting material can be finally collected on the parting surface of the mould, therefore, any casting point, fusion welding line or fusion welding point cannot be formed on the cast; and the trackless lampshade can be completely formed. The invention further discloses a forming mould of the trackless lampshade.

The invention discloses a traditional Chinese medicinal material drying device which comprises a box body. An observation window is installed on the side face of the box body, a placing mechanism is arranged in the box body, a clamping device is arranged on the surface of the placing mechanism, and a drying heat dissipation mechanism is installed at the top of the inner wall of the box body. The invention relates to the technical field of traditional Chinese medicinal material drying. According to the traditional Chinese medicinal material drying device, the purpose of drying traditional Chinese medicinal materials is achieved, the placing mechanism and the drying heat dissipation mechanism are additionally arranged in the box body, the traditional Chinese medicinal materials needing to be dried can be effectively and rapidly dried through drying heat dissipation, and the situation that the traditional Chinese medicinal materials are burnt due to the fact that the temperature in the box body is high during drying is avoided. According to the traditional Chinese medicinal material drying device, various traditional Chinese medicinal materials can be dried through the placing mechanism, the problem that the traditional Chinese medicinal materials are burnt during drying through a common traditional Chinese medicinal material drying device is solved, and due to the fact that the number of placing cabinets in the placing mechanism is large, many traditional Chinese medicinal materials can be placed in the placing cabinets to be dried.

The invention relates to high-reliability grain drying equipment. The high-reliability grain drying equipment comprises a main body, two heating rods and two supporting legs, and further comprises twostirring mechanisms and two circulating mechanisms, each stirring mechanism comprises a motor, a rotating shaft, a first bearing, two cleaning assemblies and a plurality of rotating plates, a transmission unit comprises a half gear, a driving frame, a connecting rack and two driving racks, each circulating mechanism comprises a control assembly, a sucking pump, an air inlet pipe, an air outlet pipe, a fixing box, a sponge block, a connecting pipe, a heating pipe and an exhaust pipe, and each control assembly comprises a control switch and an abutting plate. The high-reliability grain drying equipment has the advantages that through the stirring mechanisms, the stirring function on the interior of the main body is achieved, grains around the heating rods are in a flowing state, so that thephenomenon that the grains are burnt can be avoided, and therefore the drying quality is improved; and through the circulating mechanisms, the circulating flowing function on hot air in the main bodyis achieved, all the grains in the main body can be fully heated, and therefore the drying effect is improved.

The invention discloses an aluminum foil container structure for food modified atmosphere packaging. The aluminum foil container structure comprises an aluminum foil box, the aluminum foil box is composed of an aluminum foil base plate and an aluminum foil circumferential side plate, one end of the aluminum foil circumferential side plate is provided with a smooth opening, the aluminum foil circumferential side plate is arranged in an inclined manner relative to the aluminum foil base plate, and the area of an opening plane of the aluminum foil circumferential side plate is larger than the area of the aluminum foil base plate; the aluminum foil base plate is provided with first reinforcing ribs inwards protruding towards the interior of the aluminum foil box, the aluminum foil circumferential side plate is provided with second reinforcing ribs inwards protruding towards the interior of the aluminum foil box, and the first reinforcing ribs and the second reinforcing ribs are communicated into a whole. The reinforcing ribs are connected into a whole, the rigidity of the box is improved, and meanwhile, the material thickness can be reduced; during air exchanger, air in most space isolated by the reinforcing ribs and located at the bottom of the container can be pumped out, the oxygen remaining rate is reduced to the maximum degree, and the food refreshing time is greatly prolonged. During food baking, heating is more even, and foods tightly attached to the box bottom cannot be burned in baking. In addition, an aluminum foil material can be repeatedly used and can be melted into an aluminum pig at the high temperature, and therefore environment protecting is achieved.

A kitchen waste separation and solid matter drying and sterilization device comprises a feeding pipe, a conveying pipe, a spiral conveyor, a heating part, a heat insulation and heat preservation pipe,a drying discharging outlet, a spiral conveyor driving device and end cover seats. The feeding pipe is arranged at the feeding end of the conveying pipe. The drying discharging outlet is formed in the discharging end of the conveying pipe. The spiral conveyor is arranged in the conveying pipe. The two ends of the spiral conveyor are fixed to the end cover seats correspondingly. The spiral conveyor driving device is directly connected with the spiral conveyor. The heating part is arranged between the heat insulation and heat preservation pipe and the conveying pipe. The spiral conveyor drivingdevice drives the spiral conveyor to rotate. According to the kitchen waste separation and solid matter drying and sterilization device, solid matter containing water can be heated, stir-fried, sterilized and dried, the dehydration efficiency is high, heating is uniform, sterilization is thorough, the situation that the solid matter is stir-fried to brown and caked is avoided, the end cover seatsfor supporting the spiral conveyor have the heat insulation and heat dissipation functions, working is stable, and the service life is long.

A smokeless high-efficiency energy-saving baking oven comprises an oven body and heat transfer plates, and is characterized in that the oven body is provided with an inner cavity, the inner part of the oven body is fixedly connected with the heat transfer plates, the heat transfer plates divide the inner cavity of the oven body into two parts, a baking chamber is arranged above the heat transfer plates, and a combustion chamber is arranged below the heat transfer plates; the top end of the heat transfer plate is fixedly connected with a smoke exhaust pipe; the smoke exhaust pipe is communicated with the combustion chamber of the oven body; the smoke exhaust pipe is provided with an annular baking net which is connected in a penetrating and sliding manner, and the annular baking net is positioned above the heat transfer plate; the smoke exhaust pipe is provided with a furnace cover which is connected in a penetrating and sliding manner; compared with the prior art, the smokeless high-efficiency energy-saving baking oven separates the smoke generated by fuel combustion from food by adopting a conical heat transfer plate with good heat transfer performance, and avoids the direct contact of the smoke and the food; and the food is baked by heating the air, so that the food can be heated all around and uniformly heated, the phenomenon of scorching cannot occur, and a specially-assigned person does not need to turn over the food.