46results about How to "Meet long-term use requirements" patented technology

The invention discloses an automatic test device for simulating an ocean tide environment. A sea water circulating controller comprises a water inlet device and a water outlet device; a water inlet pump of the water inlet device and a water outlet pump of the water outlet device are variable-frequency water pumps; the water inlet device is communicated with a water inlet of a main corrosion working chamber and a water outlet of an auxiliary corrosion working chamber respectively; the water outlet device is communicated with a water outlet of the main corrosion working chamber and a water inlet of the auxiliary corrosion working chamber respectively; and a first flow sensor is arranged in the water inlet device, and a second flow sensor is arranged in the water outlet device. A sea water temperature controller is arrange at the bottom of the main corrosion working chamber; a low liquid level controller and a high liquid level controller are fixedly arranged in the main corrosion working chamber; an air blowing port of an air blowing device and an illumination device are positioned above the high liquid level controller; and the water inlet device, the water outlet device, the sea water temperature controller, the air blowing device and the illumination device are connected with the controller respectively. The automatic test device can effectively simulate the actual ocean tideenvironment.

The invention discloses a high-temperature-resistant motor, belonging to the technical field of motors. The high-temperature-resistant motor comprises a stator, a rotor, a left end cover, a right end cover and a jacket, and is characterized in that the jacket is provided with a first water cooling cavity; the left end of the first water cooling cavity is closed by a left space ring, and the rightend of the first water cooling cavity is closed by a right space ring; a first water inlet connector, a first water outlet connector and a power wire holder are arranged on the outer wall of the jacket in an extending way; the first water inlet connector and the first water outlet connector are maintained in a diagonal relationship and respectively communicated with the first water cooling cavity; and a winding outgoing line used for winding of the stator and isolated from the first water cooling cavity is formed in the first water cooling cavity and led to an outgoing line transition pipe ofthe power wire holder. The high-temperature-resistant motor has the advantages of being capable of guaranteeing good sealing performance, avoiding leakage and being safe, being capable of being convenient to manufacture, being capable of guaranteeing the stator winding from being intruded by the cooled water, being capable of preventing water short circuit, achieving a good cooling effect and meeting the long-term using requirement in a high-temperature environment, being capable of being convenient to manufacture and install, and being capable of being convenient to maintain due to the concise integral structure.

The invention discloses hot-melt heat-conducting glue for a refrigerator or freezer evaporator and the preparation and application thereof.The hot-melt heat-conducting glue contains, by mass, 10-25 parts of halogenated butyl rubber, 5-10 parts of liquid butyl rubber, 20-30 parts of polyisobutene, 10-20 parts of tackifier, 2-5 parts of paraffin, 5-10 parts of white oil, 1-2 parts of coupling agent, 60-100 parts of heat conduction filler, 1-4 parts of antioxidant and 1-4 parts of antiager.The hot-melt heat-conducting glue has excellent heat conduction property, adhesive property, anti-aging property and anti-corrosion property, reliability is high enough to meet the requirement for long-term use of a refrigerator, and corrosion to metal including copper and aluminum is avoided.Operation can be conducted with automatic equipment, glue application and liner wrapping can be conducted synchronously, and production efficiency is improved greatly; complete bubble-free attaching of an evaporator pipeline and a refrigerator or freezer liner shell can be achieved, heat transfer is quick, heat loss is low, and uniform coldness and clear frost of freezing and cold storage cavities are realized.

The invention discloses a double-component organic silicon polyurethane elastomer. The double-component organic silicon polyurethane elastomer consists of a component A and a component B, wherein the mass ratio of isothiocyano in the component A to hydroxyl in the component B is 1:(1.05-1.2); the component A is prepared by reacting the following raw materials in part by mass: 10 to 30 parts of polyisocyanate, 30 to 80 parts of polyalcohol, 0.1 to 10 parts of active hydrogen-containing siloxane and 0 to 10 parts of plasticizing agent; and the component B consists of the following raw materialsin part by mass: 10 to 50 parts of polyalcohol, 1 to 10 parts of reinforcing agent, 20 to 60 parts of inorganic filler, 3 to 10 parts of pigment, 0.1 to 10 parts of aid and 5 to 20 parts of plasticizing agent. The double-component organic silicon polyurethane elastomer has high elasticity, hardness, solvent resistance, wear resistance, flexure resistance, high and low temperature resistance, ultraviolet resistance and oxidative degradation resistance, low surface energy and high hydrophobicity, and can meet the long-term using requirement of the sport field.