96results about How to "With self-lubricating function" patented technology

This invention relates to a method for preparing polishing paste containing high-purity nanoscale diamond for precision polishing of the small inner pores of ceramic ferrule used in optical fiber connector. The polishing paste is prepared from: diamond micropowder 0.05-5 wt.%, wetting agent 0.01-25 wt.%, surfactant 0.1-5 wt.%, dispersion stabilizer 0.1-50 wt.%, pH regulator 0.1-1 wt.%, and glycerol 14-99.64 wt.%. The purity of the diamond micropowder is greater than or equal to 99.9%, and the particle sizes are 100-200 nm. The polishing paste is amphipathic, and has such advantages as high polishing speed, high dispersion stability, and appropriate viscosity. The polishing paste can effectively prevent the generation of small inner pores on the surface of polished ceramic ferrule.

The invention relates to a preparation method of a self-lubricating and high-strength pouring nylon, comprising the following steps of: (1) stirring and heating a caprolactam monomer, surface-modified nano TiO2 and nano graphite powder subjected to alkaline treatment, and vacuumizing simultaneously, continuously stirring a caprolactam fused mass mixture to obtain a caprolactam fused mass containing a nano composite material; (2) adding a sodium hydroxide solid to the caprolactam fused mass, raising temperature and continuously stirring to obtain an alkaline caprolactam fused mass mixture; (3)restoring the pressure of a reaction kettle to the atmospheric pressure, adding IPDI (Isophorone Diisocyanate) or TDI (Toluene Diisocynate) to the reaction kettle, uniformly stirring to obtain a caprolactam nylon prepolymer; and (4) flowing or pressurizing the prepolymer and injecting to a mold cavity, closing a mold, then continuously warming, then naturally cooling to room temperature to obtaina formed self-lubricating and high-strength pouring nylon part. The preparation method of the self-lubricating and high-strength pouring nylon has the advantages of simple process device and apparatus, simple process route, simple formation and control and unlimited part size and shape.

The invention relates to the technical field of PBAT/PLA (poly(butyleneadipate-co-terephthalate)/polylactic acid) blend compatibilization, particularly a controllable-degradation PBAT/PLA composite film. The controllable-degradation PBAT/PLA composite film comprises the following components in parts by weight: 50-60 parts of PBAT, 10-30 parts of PLA, 10-20 parts of calcium carbonate, 0.5-2 parts of antibacterial compatibilizer and 0.5-2 parts of tetrabutyl titanate. The mass ratio of the PLA to the calcium carbonate is (1-3):1. The PLA/calcium carbonate proportion is strictly controlled and restricted within the range of (1-3):1; and the PLA/calcium carbonate proportion can be regulated to control the degradation start time of the PBAT/PLA composite film at 60-90 days and control the complete degradation time at 120-150 days.

The invention discloses an electric control reversing valve, which comprises a valve body, front and rear covers at both ends of the valve body, a sliding valve rod is arranged in the valve body, a large piston and a small piston are respectively arranged at the two ends of the sliding valve rod, and the front and rear covers are There are large and small piston chambers corresponding to the large and small pistons, and a gland and a coil assembly are arranged in turn at the front cover end. The coil assembly is provided with a sleeve assembly that opens and closes the air path and moves the piston. The sliding valve A hollow groove is arranged in the rod, and the two ends of the hollow groove communicate with the large and small piston chambers respectively. The reversing valve has the characteristics of long life, good stability, miniaturization, low power consumption and the like.

The invention provides a one-piece composite material self lubricating sliding bearing and a manufacturing method thereof; the bearing is made of reinforced fibrous resin composite material, and a bearing pedestal and a bearing bush are of integral structure formed by one step; wherein the included angle between the arranging direction of over 50% of fibers in the bearing and the radial direction of the bearing is less than 30 degrees, and a cooling water channel is arranged in the bearing. The manufacturing method includes the following steps: firstly preparing impregnated fibrous resin, then making the impregnated fibrous resin into a fiber laminated body, placing the fiber laminated body into a die and producing the bearing by compression molding. The method has high production efficiency and the produced bearing has precise size, high carrying capacity, strong wearing resistance, self lubricating function and high reliability when running in high-temperature and damp environment and can withstand the impact of periodical alternating load of a rolling mill. The bearing is mainly applied to a rolling mill used for rolling seamless steel pipes.

The invention relates to mixing equipment for chemical industry, in particular relating to an epicyclic dynamic and static vacuum mixer, which comprises a power plant, an epicyclic train assembly, a mixing tank, a transmission shaft, high-speed dispersion assemblies and low-speed mixing assemblies, wherein the high-speed dispersion assemblies and the low-speed mixing assemblies are driven by the power plane via the transmission shaft and the epicyclic train assemblies; the epicyclic train component comprises an epicyclic train, an epicyclic box and an epicyclic shield; the lower part of at least one group of the high-speed dispersion assembly is provided with a static mixer set; the bottom end of the high-speed dispersion assembly is provided with a propelled paddle; the static mixer set is connected with the epicyclic box by a connection plate; each group of the static mixer set is composed of a hollow cylinder and n-numbered static mixers arranged inside the cylinder in parallel, wherein n is any integer in the range of 1-40; and the propelled paddle is arranged in the hollow cylinder. The invention integrates the advantages of the epicyclic dispersion vacuum mixer and the static mixer in the processing of mixing the materials, thereby greatly improving the mixing efficiency and having the low cost; and the epicyclic train has the self-lubricating function.

The invention relates to a diameter-enlarging cone and a manufacturing process thereof. The diameter-enlarging cone comprises the following material components in percentage by weight: 2.2%-2.4% of C, 1.8%-2.0% of Si, 1%-1.5% of Mn, 0.5%-0.8% of Cr, 0.8%-1.2% of Ni, 0.35%-0.5% of Mo, not more than 0.15% of V, 0.2%-0.3% of Cu, not more than 0.025% of S, not more than 0.025% of P and the balance of Fe element. The manufacturing process comprises the following steps: firstly preparing materials; then formulating a pouring process flow; preparing a pouring tool; pouring by adopting molten steel pouring temperature of 1430 DEG C-1480 DEG C; performing annealing and normalizing thermal treatment after forming by pouring; performing rough machining on the shape and inner hole of the diameter-enlarging cone; placing in a dry and ventilated environment for 30-150 days for natural aging; performing finish machining on the shape and inner hole of the diameter-enlarging cone; enabling the integral thermal treatment hardness HRC of the diameter-enlarging cone to achieve 45-50; grinding a T-shaped slot and inner hole of the diameter-enlarging cone; processing a lubricating oil hole in the diameter-enlarging cone by adopting deep hole drilling; processing a central chamfer angle and then preparing a finished product. The diameter-enlarging cone has the advantages of friction resistance, wear resistance, good self-lubrication function and long service life.

A guiding device where foreign objects do not enter from gaps into a moving block even in an environment where a large amount of dust is present in the air, the gaps being formed by side faces of a track rail and inner faces of a moving block. A guiding device has a track rail and a moving block (20) and is constructed such that the moving block (20) is assembled so as to be movable relative to the track rail with rolling bodies that circulate in rolling body circulation paths in between. Foreign object entry prevention plates (34) are provided in the guiding device, and head ends of the plates are in contact with side faces of the track rail along its length direction. The plate (34) closes at least gaps formed by inner faces of skirt sections on both sides of the moving body (21) of the moving block (20), side-lid inner faces, and track rail side faces.

The invention discloses a manufacturing method for an airplane part stretch-forming mold made of a resin matrix composite and mainly aims to solve the problems that existing molds are large in manufacturing difficulty, hard to store and large in weight and cannot be repaired. The provided manufacturing method for the airplane part stretch-forming mold made of the resin matrix composite comprises the steps that a matrix and a surface are manufactured with the resin matrix composite; and then the airplane part stretch-forming mold is machined and manufactured through a numerical control machine tool. By means of the manufacturing method, the mold using rate is increased, especially, the part productivity is improved, the mold manufacturing cost is reduced, and the mold manufacturing period is shortened.

The invention discloses water-oil soluble nanocarbon crystal abrasive paste. The water-oil soluble nanocarbon crystal abrasive paste is mainly prepared from, by weight, 10-25 parts of nano carbon crystals, 1-10 parts of water, 20-30 parts of oleic acid, 10-20 parts of vaseline, 15-30 parts of kerosene, 15-25 parts of peanut oil, 5-15 parts of fungicide, 0.2-2 parts of sorbitan fatty acid ester and 0.2-2 parts of an OP-emulsifier. The invention further discloses a preparation method of the water-oil soluble nanocarbon crystal abrasive paste. The prepared abrasive paste has the advantages of being green, environmentally friendly, non-corrosive, low in cost and good in grinding effect and is applicable to measuring tools, cutting tools and optical instruments made from glass, ceramic, hard alloy, natural diamonds, precious stones and other hard materials and machining of other high-finish-degree workpieces.

The invention relates to an armature translational motion non-oil lubrication double push electro-magnet, its structure is that has two magnet coils and two move iron core in the tube shape shell, the core of move iron core support in the shell cavity, the core axis of move iron core support in the shell or on the shell endcover core hole, the ceramics spurt coating setup on the move core bearing friction of the electro-magnet. This invention primely solved the present elevator move iron core wear well and lubrication question of using brake with double push electro-magnet, under no maintain, non-lubrication operating mode condition, the safe operation times might reach 1000-15 million; can definitely meet the elevator safe operation needs in main engine service life period. It is a new elecetromagnet of using elevator brake with no open solution, no maintenance, no lubrication.

The invention relates to a ceramic refractory material. The ceramic refractory material comprises raw materials in parts by weight as follows: 8-16 parts of nanometer titania, 5-12 parts of nanometermagnesia, 3-5 parts of vanadium pentoxide, 6-10 parts of kaolinite, 1-2 parts of aluminum fiber, 2-3 parts of a dispersing agent, 4-8 parts of quartz sand, 1-5 parts of a coupling agent, 3-8 parts ofcoal cinder, 5-9 parts of silicon carbide, 8-12 parts of trimethyl ethylenediamine, 18-25 parts of alumina, 2-5 parts of aluminum oxide, 5-9 parts of toughening fibers, 3-9 parts of a lubricant, 2-8 parts of sodium silicate and 10-15 parts of a binding agent. The ceramic refractory material has sufficient strength, hardness, plasticity and toughness and further has a self-lubricating function.

The invention discloses a self-lubricating water-based environment-friendly coating. The water-based environment-friendly coating is composed of the components in percentage by mass: 20%-40% of A, 15%-25% of B, 10%-20% of Al powder and Zn powder, 1%-3% of an organic silicon defoamer, 2%-8% of a corrosion inhibitor, 1%-5% of a cosolvent, 10%-20% of a lubricant and 10%-15% of water, wherein the A isa reaction product of rosin and a silane coupling agent, and the B is a reaction product of ZrCl4, quaternary ammonium salt and tripolyphosphate in triethanolamine. A preparation method comprises thesteps: weighing the A and the B, and uniformly stirring; and adding the Al powder, the Zn powder, the organic silicon defoamer, the corrosion inhibitor, the cosolvent, the lubricant and water, and fully stirring and uniformly mixing to obtain the coating. The coating has excellent corrosion resistance, self-lubricating property, film-forming property, passivation property, slow release property and the like.

The invention belongs to the technical field of automobile accessories, and particularly relates to a differential assembly with a self-lubricating function. The technical problems such as short service life in the prior art are solved. The differential assembly with the self-lubricating function comprises a differential shell, half-axle installation channels are arranged at the two ends of the differential shell correspondingly, half-axle gears are arranged in the half-axle installation channels correspondingly, a planetary gear axle is fixedly arranged on the differential shell, planetary gears engaged with the half-axle gears are arranged at the two ends of the planetary gear axle correspondingly, the differential shell comprises a first shell and a second shell, the first shell is provided with at least two first arc-shaped gaps, second arc-shaped gaps corresponding to the first arc-shaped gaps one to one are formed in the second shell, each half-axle gear comprises an axle body and a bevel gear fixedly arranged at one end of the axle body, the axle bodies are arranged in the half-axle installation channels in a penetrating mode, and a self-lubricating structure is arranged between the axle bodies and the half-axle installation channels. The differential assembly with the self-lubricating function has the advantage of long service life.

The invention relates to a surface treatment technique of a flow control valve, belonging to the technical field of metal surface treatment. In the treatment process, a flow control valve is used as an anode, and the anode and a cathode are arranged in an oxidant solution. The invention is characterized in that the oxidant solution is a mixed solution formed by mixing a 2.24 mol/L sulfuric acid water solution and a 224 mol/L polytetrafluoroethylene water dispersion in a volume ratio of 3:1, the temperature of the oxidant solution is -3--4 DEG C, the stable oxidation current density of the anode is 2.5 A/dm, the oxidation time is 2.5-3 hours, and a composite hard anodic oxidation layer is formed on the surface of the flow control valve. The flow control valve subjected to the surface treatment technique has the self-lubricating function, and can greatly reduce the friction force in the friction process with a pump body.