40results about How to "Damage to physical health" patented technology

The invention relates to an electronic cigarette and a nebulizing device thereof. The nebulizing device comprises a smoke cartridge tube and a nebulizing component. The smoke cartridge tube is provided with a smoke passage, a liquid storage cavity and a liquid outlet allowing pass of liquid nicotine. The nebulizing component fits the liquid outlet and comprises a liquid guide body, a polysilicon heating layer and first and second electrodes; the liquid guide body covering the liquid outlet is made of porous material; the polysilicon heating layer is located on one side, far away from the liquid storage cavity, of the liquid guide body; the first electrode and the second electrode are both electrically connected with the polysilicon heating layer so as to connect to a power supply; the side of the polysilicon heating layer is communicated with the smoke passage. The liquid guide body made of porous ceramic is used for guiding liquid; the polysilicon heating layer heats and nebulizes the liquid nicotine leaking out; when the nebulizing component heats the liquid nicotine, no dust is generated and flows to the smoke passage, and the physical health of consumers is protected from impairment; the nebulizing device is simple in structure, convenient to assemble and lower in assembly and labor cost.

The invention discloses a wax for impregnation and encapsulation of ceramic dielectric capacitors and its preparation method. The wax comprises, by weight: 35%-70% of a microcrystalline wax, 25%-60% of paraffin, 1%-5% of a high-molecular wax, and 0.1-1.5% of an anti-oxidant. The wax for impregnation and encapsulation in the invention has the characteristics of good insulativity, moisture resistance, heat resistance and fluidity, thin impregnating coating, suitable physical and chemical performance, good using performance, nontoxicity, no pollution as well as environmental friendliness, and issuitable for impregnation and encapsulation of ceramic dielectric capacitors.

The invention relates to a kind of impregnation enveloping wax combination used for electronic components, which contains petroleum wax, petroleum resin, and adhesion promoter. The impregnation enveloping wax of the invention has the advantages such as high drop melting point, excellent high-temperature property, fine electrical property, low melting viscosity, good adhesivity, fine moisture resistance, and so on. Coil impregnation-enveloping materials for exclusive use to existing technology electronic components all take resin as main materials, and the impregnation-enveloping materials have higher cost. The impregnation encapsulating wax of the invention adapts to the impregnation and envelopment of inductance coil, mid-frequency and high frequency electric coil, and other electronic components.

The invention discloses aeroengine turbine guide vane polishing protection wax and a polishing method. The aeroengine turbine guide vane polishing protection wax is prepared from petroleum wax, abietic resin, hydrocarbon cream, a butylene polymer and the like by mixing processing according to a specific ratio. The aeroengine turbine guide vane polishing protection wax has good plasticity, good adhesiveness, appropriate physical and chemical performances and excellent use performances, is convenient for knife coating, can be removed easily, does not produce corrosion, toxins and pollution, and is environmentally friendly. The polishing method adopting the aeroengine turbine guide vane polishing protection wax comprises the following steps of protecting an air-guiding hole of a turbine guide vane by the aeroengine turbine guide vane polishing protection wax, carrying out polishing processing, and then removing the aeroengine turbine guide vane polishing protection wax. The polishing method can effectively prevent that metal chips block the air-guiding hole in turbine guide vane polishing.

The invention provides a novel metalized film capacitor encapsulation wax, comprising the following components in parts by weight: 40 to 60 parts of petroleum wax, 10 to 15 parts of polyisobutene, 20 to 30 parts of Vaseline, 10 to 15 parts of sulphur, 10 to 15 parts of mica powder and 3 to 5 parts of straw ash. The metalized film capacitor encapsulation wax has good ductility, excellent electrical property and appropriate kinematic viscosity, and is convenient to fill clearances of a metalized film capacitor.

The invention discloses a double-sided spraying device for antitheft door machining. The device comprises a closed mechanism, a turnover mechanism, a moving mechanism, and a spraying mechanism for spraying an antitheft door, wherein the turnover mechanism is mounted on the closed mechanism, and the moving mechanism is mounted above the closed mechanism. Through the arrangement of a purification mechanism, harmful gas in a closed box enters a fixed shell through a gas conveying pipe, the gas in the fixed shell is purified through an air purifier and then exhausted, so that the health of workerscan be prevented from being injured, through the arrangement of a collection mechanism, redundant paint enters a collection box to be stored in the spraying process, so that the environment cannot bepolluted while waste is avoided, through the arrangement of a drying mechanism, when a filter screen needs to be replaced, a third handle is lifted upwards to separate a frame from a clamping seat, then the replacement of a new filter screen can be completed, the replacement process is simple and convenient, and through the arrangement of a protective cover, the paint can be prevented from entering a pipeline.

The invention discloses a multilayer ceramic capacitor impregnation wax and a preparation method thereof. The multilayer ceramic capacitor impregnation wax comprises, by weight, 60-85% of microcrystalline wax, 5-15% of butane polymer, 5-15% of polypropylene wax, 2-10% of insulation oil, and 0.1-1.0% of antioxidant. The impregnation wax of the invention has the characteristics of good insulation performance, moisture resistance, heat resistance and adhesion, suitable physical and chemical properties, good using performance, non-toxicity, no pollution, and environment-friendliness. The impregnation wax of the invention is applicable to impregnation of multilayer ceramic capacitors.

The invention discloses a preparation method of environment-friendly type forsterite foundry sand. The preparation method mainly adopts a forsterite raw material and clinker calcinated and smashed at the high temperature, and the forsterite raw material and clinker are mutually matched to obtain the foundry sand. The foundry sand does not absorb water and is not self-pulverized after repeatedly baked by molten steel at the high temperature, the hardness is high, and the casting effect is good; a product does not contain free-state silicon dioxide powder, so that silicosis occupational disease in the foundry industry can be eliminated fundamentally; the product can be repeatedly recycled, accordingly, the environment pollution is reduced, and the foundry material cost is reduced.

The invention discloses a cement silo clearing device and a silo clearing method. The device comprises a top fixing mechanism, a mechanical arm connected to the lower end of the top fixing mechanism and a power mechanism installed on the mechanical arm. According to the device, a hole is directly formed in the top of a cement silo, and a power head is placed deeply in the cement silo; transversely, movement is controlled through a telescoping mechanism, and the movement range can reach 11m; longitudinally, movement is controlled through a lifting mechanism, and the movement range can reach 50m, so that all positions in the cement silo are cleared; since control equipment is located at the top of the cement silo, an operator can perform silo clearing just at the top of the silo, the situation that a worker enters the silo is avoided, no hurt is brought to the health of the worker, and the risk in suspending operation is avoided; and moreover, all-mechanical operation is realized, so that working efficiency is high.

The invention discloses an aerodynamic transport car which comprises a car body, wherein an air-powered engine and a high-pressure air storage tank are mounted on the car body; the air-powered enginecomprises an engine body; a gearbox is connected with the engine body through a connecting supporting plate; an output flange is fixed on the gearbox; the engine body is equipped with an air distribution device and a fan; an air valve is connected with the air distribution device and communicates with an air inlet; a plurality of groups of air cylinders are arranged in the engine body; each groupof air cylinders comprise a primary air cylinder and a secondary air cylinder; a primary piston is movably arranged in each primary air cylinder; a secondary piston is movably arranged in each secondary air cylinder; each primary piston and the corresponding secondary piston are connected onto one corresponding crankshaft; the air displacement of each primary air cylinder is greater than that of each secondary air cylinder; and air paths of the primary air cylinder and the secondary air cylinder in the same group communicate in series. By adoption of the aerodynamic transport car, defects in the prior art can be overcome; the utilization ratio of compressed air can be improved; and then, the safety and the transport capacity of the aerodynamic transport car can be improved.