60results about How to "Slow down the leak rate" patented technology

This invention relates to the process of a kind of explode restrain material. chemical composition of it includes Si 0.1-0.6,Fe 0.2-0.7,Cu 0.05-0.1,Mn 0.6-1.2,Zn 0.05- 0.1,Ti 0.03-0.12,Na 0.02-0.07,and Al the rest .the process includes steps as follows: melt, de-sludge and de-airing, make body, milling, first anneal, hot press, cold press, second anneal, stamp to open the sew, tension.

The invention belongs to a preparation method of an explosion-suppressing material. The explosion-suppressing material comprises the following chemical compositions by weight percent: 0.3-0.5 percent of Si, 0.1-0.3 percent of Fe, 0.15-0.25 percent of Cu, 1.0-1.5 percent of Mn, 1.0-1.5 percent of Mg, 0.1-0.3 percent of Zn, 0.15-0.25 percent of Ti, 0.03-0.06 percent of La, 0.05-0.09 percent of Ce and the balance Al. A grain structure of the explosion-suppressing material is refined by adopting a repeated heating forging and pressing method. The explosion-suppressing material provided by the invention has excellent extrusion resistance, collapse prevention, zero dreg-falling and high-strength explosion-suppressing property. The performance indexes of the explosion-suppressing material, such as strength, plasticity, fracture toughness and fatigue resistance, are greatly increased according to the preparation method; the technology is simple and is easily performed; and the service life of the explosion-suppressing material is prolonged.

The invention relates to an analog simulated skin and a puncture module with the analog simulated skin, belonging to the technical field of medical teaching. The analog simulated skin is divided into at least one outer simulated skin layer and an inner simulated skin layer, wherein the edges of the two layers are closely fit to form a sac structure. The puncture module with the analog simulated skin mainly comprises the analog simulated skin and a base, wherein the base mainly comprises an upper cover and a lower cover; the upper cover is hollow and tightly screwed with the lower cover; the lower cover is in a depressed structure, an analog puncture liquid is stored in the depressed structure, and the lower cover is tightly screwed with the upper cover. When a needle is pulled out from the analog simulated skin, the liquid enters the sac in turn, and when the liquid in the sac is with a certain volume and pressure, the liquid penetrates outside from the outer simulated skin layer, thus the sac structure completely reduces the penetration rate of the liquid when the analog simulated skin is punctured, thus the analog simulated skin with the sac structure can be continuously punctured for hundreds of times. Thus, the quality of the products is improved on the basis of present materials, and the cost is reduced.

The invention discloses inflating and encapsulating equipment for producing bubble packs. The inflating and encapsulating equipment comprises a base, an air injection opening, a clamping module, an encapsulating module and a control system, wherein the air injection opening can expand and contract relative to the base and is used for injecting air in the bubble packs; the clamping module is used for fixing the bubble packs; a heating device is arranged on the encapsulating module; the encapsulating module is used for sealing the mouths of the bubble packs after air injection is completed; the clamping module and the encapsulating module are positioned in the same plane and are arranged in the telescoping direction of the air injection opening; the clamping module is positioned on the outer side of the encapsulating module. Through the adoption of the inflating and encapsulating equipment disclosed by the invention, the inflating step and the encapsulating step for the bubble packs can be integrally completed, so that the workload of workers is effectively reduced, and the production efficiency can be improved; the conveying links of materials can be reduced, so that the storage cost and the management cost are reduced; the air tightness after the bubble packs are encapsulated can be improved, so that the air leaking speed is greatly lowered; therefore, the bubble packs can have a good protecting effect in a long time.

The invention discloses an installation structure of an electric furnace induction coil for fluoride salt production. The installation structure comprises a furnace body (1). The installation structure is characterized in that an induction coil layer (2) is arranged on the furnace body (1); a plumbago crucible (3) is arranged in the middle of the furnace body (1); a calcium oxide layer (4) is arranged between the induction coil layer (2) and the plumbago crucible (3); an induction coil (6) of the induction coil layer (2) is arranged at the middle part of the plumbago crucible (3); the plumbago crucible (3) is divided into a feeding zone (8), a reaction zone (9) and a precipitation zone (10); the installation length L of the induction coil (6) is 200-400 mm smaller than the height H of the plumbago crucible (3). An applicant disclosed by the invention finds that no leakage is generated in the production process of fluoride salt by using calcium oxide as a refractory material; the service life of the crucible can be prolonged to more than ten days; the calcium oxide is an optimal refractory material for industrial production of the installation structure.

The invention relates to the technical field of refrigerated warehouse equipment, in particular to a translation door provided with a cold insulation bridge aluminum alloy composite door frame. The translation door comprises a warehouse plate, a movable door sheet and a sealing strip; the movable door sheet is arranged on the warehouse plate; an aluminum alloy door frame is arranged on the warehouse plate, and is located between the warehouse plate and the movable door sheet; a thermal insulation line cover plate made of PVC plastics is arranged on the aluminum alloy door frame and is located at one end, far from the warehouse plate, of the aluminum alloy door frame; and the sealing strip is located between the aluminum alloy door frame and the movable door sheet. When the translation door provided with the cold insulation bridge aluminum alloy composite door frame is in use, through a baffle extending outwards on the thermal insulation line cover plate, the baffle is in contact with the sealing strip, that is on the condition that the sealing strip and the aluminum alloy door frame are sealed, the baffle is in contact sealing with the sealing strip, so that the thermal insulation property of the refrigerated warehouse is ensured, and during leakage, a passing path of cold air in the refrigerated warehouse is lengthened, so that the cold air leakage speed is reduced.

The invention discloses a ceramsite sand preheating and discharging device which comprises a discharging device, a preheating device is arranged at the bottom of the discharging device, a rotary kiln is arranged at the bottom of the preheating device, the preheating device comprises a mixing device, and a heat preservation device is arranged outside the mixing device. According to the ceramsite sand preheating and discharging device and the discharging and preheating method, the preheating device and the discharging device are arranged to control the feeding amount of materials, hot air in the rotary kiln enters the mixing device, the heat preservation device delays the heat leakage speed of equipment through heat circulation and water circulation, and under the action of the stirring device, the falling speed of the materials is deferred; the stirring frequency is increased, the preheating time of the materials is prolonged, the materials are preheated by utilizing redundant heat generated during working of the rotary kiln, the heat utilization rate is increased, the energy consumption is reduced, and the problems that traditional preheating equipment is low in heat utilization rate and high in energy consumption and does not conform to the green and environment-friendly production concept are solved.

The invention relates to an anti-explosion and decontamination integrated treatment system used for suspected biochemical explosives. The system comprises a chemical-defense anti-explosion storage and transportation tank, and is characterized in that the system further comprises a decontamination treatment device, a tank opening locking mechanism assembly of the chemical-defense anti-explosion storage and transportation tank is connected at the opening part of a tank body and the opening part of a tank cover in a sleeving manner at the same time, a pressure-reducing unloading assembly and an emergency unloading assembly of a pressure-reducing unloading cleaning assembly of the chemical-defense anti-explosion storage and transportation tank are connected with the top of the tank body in a sealed manner, and a cleaning assembly communicates with the bottom of the tank body in a sealed manner; and a harmful gas and liquid inlet of the decontamination treatment device is connected with a discharge port of the chemical-defense anti-explosion storage and transportation tank in a sealed manner, an outlet is discharged to the outside, a decontamination liquid inlet of the decontamination treatment device is connected with a decontamination liquid storage tank in a sealed manner, and a decontamination liquid outlet of the decontamination treatment device is connected with a filling port of a primary decontamination assembly, a filling port of a secondary decontamination assembly and a filling port of the chemical defense anti-explosion storage and transportation tank in a sealed manner.

The invention discloses a casting method and tool of a crosshead slider white alloy of a large low speed marine diesel engine. The casing method includes the steps that an L-shaped tire plate integrally connected by a long plate and a short plate and a crosshead slider are placed on a casting platform, the inner surface of the long plate is opposite to a separated cavity the front of the crossheadslider, the inner surface of the tail part of the short plate is connected with one end face of the crosshead slider in a close contact mode, a baffle plate and a baffle block are placed on the tailpart of the long plate of the tire plate and combined with a bayonet for mounting and positioning, the screw rod part of a fastening rod is matched with a screw hole of the baffle block, and the frontend of the fastening rod is pressed against the baffle plate; the inner surface of the long plate of the tire plate, the inner surface of the short plate of the tire plate, the front face of the crosshead slider and the upper face of the casting platform form a combined cavity; and white alloy melt is cast for forming, after the white alloy melt is cooled to be integrally solidified with the front face of the slider, a depressurized groove quickly releases internal fluid pressure to slow down theleakage speed, the liquid white alloy is solidified rapidly in the depressurized tank at the sametime, and thus the liquid white alloy is prevented from leaking to the exterior of the tire plate. Decladding, pore, slag inclusion and other defects are effectively avoided, and the combined qualityof the white alloy is increased.