45results about How to "No need to invest" patented technology

The invention discloses a zero-halogen flame-retardant thermoplastic polyurethane elastomer sheath material and a preparation method thereof. The zero-halogen flame-retardant thermoplastic polyurethane elastomer sheath material is prepared from the following raw material components in parts by weight: 50-80 parts of polyurethane, 10-30 parts of zero-halogen flame retardant, 10-20 parts of zero-halogen smoke suppressant, 5-20 parts of processing modifier, 0.2+/-0.05 part of processing auxiliary agent, 0.2+/-0.05 part of antioxidant and 0.2+/-0.05 part of ultraviolet resistant. Compared with the prior art, the zero-halogen flame-retardant thermoplastic polyurethane elastomer sheath material prepared by the invention has the advantages of wider processing temperature range, ultrahigh physical and mechanical properties and flame retardant property of UL-94 and V-0 level.

The invention relates to an insulating mould coating, a laminated glass intermediate film, a piece of heat-protecting glass and a piece of laminated glass thereof. The transparent insulating mould coating is prepared by dissolving a thermal plastic macromolecule resin into a solvent, then adding a nanometer material body sizing agent and other auxiliary agents and stirring the mixture evenly. Theinsulating mould coating can be coated on glass and transparent resin film materials, and has very strong bonding strength, and refraction coefficients similar to that of the glass and the laminated glass intermediate film; and the insulating laminated glass prepared by using the insulating mould coating has the characteristics of high visible light transmittance, infrared ray shielding, heat insulation, ultraviolet ageing resistance and the like. The insulating mould coating is simple to prepare, needs no large-scale equipment, and is favorable for popularization.

The invention discloses an end-face spray quenching crack-preventing method of quenching piece through changing spraying angle in the heat disposal domain of metal material, which is characterized by the following: placing quenching piece in the quenching equipment with pipe; making quenching piece with lateral and end faces; setting lateral face as rapid freezing face only; paralleling lateral face and pipe; setting the end face of quenching piece perpendicular to pipe; flowing quenching dielectric through pipe; displaying angle a (0-90 deg) for pipe and lateral face of quenching piece; fitting for cooling lateral face of quenching piece; avoiding crack effectively.

Environment-friendly ultraviolet light resistant and high-temperature resistant paint for outer walls of buildings comprises A compositions, B compositions and a C composition, wherein the A compositions comprise the following substances in parts by weight: 25-35 parts of polyaspartic acid ester resin, 20 parts of an aromatics mixed solvent, 8-10 parts of nano-scale ceramic powder, 2-4 parts of mica powder, 10-18 parts of diacetone alcohol, 3-8 parts of ethylene glycol monobutyl ether, 7-11 parts of a cellulose thickener solution with the mass percent of 2%, 1.0-1.4 parts of a polyphosphate dispersing agent solution with the mass percent of 10%, 1-3 parts of an emulgator, 0.1-0.3 part of sodium hydroxide, 30-50 parts of ethyl alcohol, 70-100 parts of deionized water, 140-180 parts of titanium dioxide; the B compositions comprise the following substances in parts by weight: 3-5 parts of a paint curing agent, 0.02-1 part of an initiator, 1 part of a dispersing agent, 0.6 part of a flatting agent, 0.3 part of an antifoaming agent, 0.3 part of a defoaming agent, 25 parts of a modified ammonia curing agent, 2-4 parts of tetrachloroisophthalonitrile, 3-5 parts of a dry film antiseptic; the C composition is an environment-friendly color mixed-phase inorganic pigment.

The invention discloses a liquid flushing type multi-channel switching channel valve assembly, which comprises a valve body. A water inlet cavity, a water outlet cavity and a water drain cavity are formed in the valve body; a flow guide part I for communicating the water inlet cavity with the water outlet cavity, a flow guide part II for communicating the water outlet cavity with the water drain cavity, and a valve core assembly for controlling the alternate switching on and switching off of the flow guide part I and the flow guide part II are arranged at the junction of the water inlet cavity, the water outlet cavity and the water drain cavity; an elastic cavity which is connected with the valve core assembly and a pressure control mechanism for regulating the internal pressure of the elastic cavity are also arranged on the valve body; and due to the regulation of the pressure control mechanism, the elastic cavity expands and contracts to drive the valve core assembly to slide between the flow guide part I and the flow guide part II in a reciprocating mode, so that the alternate switching on and switching off of the flow guide part I and the flow guide part II is realized. Channel switching is finished in a pressure regulation mode, but pressure change is realized by controlling an electromagnetic valve; and the liquid flushing type multi-channel switching channel valve assembly has the advantages of simple structure, convenient control, no investment in equipment such as an air source and the like, and low manufacturing cost.

The invention discloses a preparation method of nano silver solution and polyaniline/ silver nanocomposite, belonging to the field of nanometer preparation and polymer inorganic matter nanocomposite. Linear alkyl benzene sulphonic acid is used as protective agent; silver oxide colloid generated by sodium hydroxide and silver nitrate serves as a precursor; aniline reduces the silver oxide colloid to prepare nano silver solution. In the preparation method of polyaniline/ silver nanocomposite, the nano silver solution prepared by the above steps is directly adopted; the preparation method simplifies the fussy steps for removing the protective agent and reducing agent and saves material and energy compared with other in-situ oxidation styles; nano silver particles have favourable composite effect with generated polyaniline matrix; the whole preparation process is carried out at constant temperature and pressure; the adopted solvent is deionized water, and the preparation process is simple, needs fewer devices and has low comprehensive cost.

The invention belongs to the technical field of numerical control processing, and particularly relates to a technical method for achieving a rotated tool center point function in a four-shaft horizontal processing center by a macroprogram. A required microprogram is compiled by employing a corresponding system variable according to a Siemens840Ds1 numerical control system platform, the displacement deviation of each point in an automatic compensation numerical control program is achieved by calling the microprogram, so that the rotated tool center point (RTCP) function is achieved on the four-shaft horizontal processing center.

The invention belongs to the technical field of cosmetics and relates to a skin care cream with a skin beautifying function. The skin care cream is characterized by consisting of a component A, a component B and a component C according to a mass ratio of (80-170):(110-260):1, wherein the component A comprises glycerol, sweet almond oil, albolene, glycerol monostearate, cera alba, vitamin E, vitamin A, vitamin F and vitamin B5; the component B comprises aloe vera gel, titanium dioxide, aluminum magnesium silicate, deionized water, isooctyl p-dimethylamino benzoate, benzimidazole methyl carbamate and methyl paraben; and the component C is essence. The invention also discloses a method for producing the skin care cream. The skin care cream has the beneficial effects that the skin nutrition is met, so that the whitening performance of the skin is good, and the skin has high elasticity; and moreover, the skin care cream is easy to prepare and low in equipment investment.

The invention belongs to the technical field of coatings, and particularly relates to an epoxy resin coating for an exterior wall of a building. The epoxy resin coating is characterized by comprising a component A, a component B and a component C in proportion of (900-1800):(30-50):1 in parts by weight, wherein the component A comprises the components in parts by weight as follows: 8-12 parts of epoxy resin, 12-18 parts of acetone, 3-8 parts of ethylene glycol monobutyl ether, 1-3 parts of commercial OP-10 emulsifier, 0.1-0.3 part of sodium hydroxide, 30-50 parts of ethanol, 70-100 parts of de-ionized water, 140-180 parts of titanium dioxide and 35-45 parts of lithopone; the component B comprises a paint curing agent and tetrachloroisophthalonitrile; and the component C is a pigment. The epoxy resin coating mainly has the beneficial effects that the fluidity is good, the anti-mildew and anticorrosive property is perfect, the coating drying and solidification speed is fast, the color harmonization is flexible, the fast construction is convenient, a preparation method is simple, the operation is easy, and a needed device is simple.

The invention discloses a high-power circulator for L-waveband micro-discharge suppression of a satellite, belonging to the technical field of microwave components and parts. The high-power circulatorcomprises a circulator main body and a connector connected with two ends of the connector main body, wherein the connector main body mainly comprises an upper cavity and a lower cavity which are mutually connected, an upper medium and a lower medium are respectively arranged in the upper cavity body and the lower cavity body, the inside of the connector is formed by the surrounding of the inner sides of the upper medium and the lower medium, substrates are arranged on the inner sides of the upper medium and the lower medium, and central conductors are arranged on the substrates; and a connector inner conductor and a connector medium are arranged in the connector, the central conductor is connected with the connector inner conductor, and the connector medium extends into the circulator andis staggered with the upper medium and the lower medium. According to the high-power circulator, the micro-discharge can be effectively suppressed, the structure and boundary dimension of a product are not limited, the high equipment input is not required, the process is simple, and the high-power circulator is suitable for popularization.

The present invention relates to a purification method of germanium in zinc sulfate solution by using magnetic field and belongs to the field of metallurgical and chemical industry. This method comprises the following steps: 1) passing a neutral leaching zinc sulfate solution containing 0.08-2.0mg / L of germanium and with temperature of 60-90 DEG C and pH value of 4.5-5.4 from a wet zinc metallurgical process through a magnetic field generator; 2) keeping the zinc sulfate solution containing germanium in the magnetic field generator for 30-60 min; and 3) conducting liquid-solid separation on the zinc sulfate solution after magnetic field treatment. The germanium in zinc sulfate solution is charged colloid, and in the magnetic field, charged germanium colloid directionally move and agglomerate into large particulate matters, in order to achieve purification of germanium in the zinc sulfate solution. The magnetic field generator uses a permanent magnetic field or electromagnetic field, so that the germanium in zinc sulfate solution in the magnetic field can condense into large particulate matters. The method has the advantages of good germanium removal effect, short work time, no raw material investment, low production costs and low labor intensity.

The invention relates to online extensible Internet of Things platform based on a circuit board production line. According to the online extensible Internet of Things platform based on the circuit board production line, an EAP platform carries out network connection on equipment of the production line through connection, and performs information exchange; the EAP platform is an enterprise management software platform; the connection modes comprise hard connection and flexible connection; and the circuit board production line comprises a horizontal line, a copper deposition line, a VCP, an AOI/VRS, an electrical test, a drilling machine and a milling machine. The Internet of Things platform shares data of the whole production line through the hard connection and flexible connection. With the online extensible Internet of Things the platform based on the circuit board production line adopted, the problems of online connection mode of production line equipment, PLC control and the like can be solved.