31results about How to "No thickening" patented technology

The invention discloses a rotating shaft of an automatic generator. The rotating shaft comprises a step and a body. The left end of the body is provided with an external thread. The body is provided with the step. The body is provided with three spline grooves located at the right side of the step. The parts, between the spline grooves, of the rotating shaft are polished shaft bodies. By adopting the rotating shaft of the automatic generator, the problems that a rotating shaft is hard to position in the press-fitting process and the head of the shaft deforms easily due to excessive stress in the prior art are solved.

The invention discloses a processing method for a shaft sleeve used for an automobile steering transmission mechanism. In the method, an E35+N seamless steel tube is used as a parent material, a flanging die composed of a male die and a female die is used, and the shaft sleeve is manufactured by flanging each end of the seamless steel tube for three times, wherein a first flanging angle is 30-45 degrees, a second flanging angle is 45-70 degrees and the third flanging angle is 70-93 degrees; while flanging the first end, a descending speed of the male die is controlled to be 50-100 mm / min; while flanging the second end, the descending speed of the male die is controlled to be 150-200 mm / min; in each flanging process, lubricating oil is injected between the parent material and the female die through a lubricating oil hole on the male die, and simultaneously, compressed air is injected between the parent material and the female die through a cooling air hole on the male die so as to cool the parent material; one end is flanged firstly, and the other end is flanged later. The method has the following technical benefits that: at a part with an inner angle of 90 degrees, the phenomenon of thickening cannot be caused; 2, at an excircle part of the flange, the phenomenon of thickness reduction cannot be caused, and hair cracks and wrinkle the material can be effectively avoided. The method further discloses a die using the method.

The invention discloses a silane modified polyurethane glass primer and a preparation method thereof. The glass primer is prepared from the following raw materials by weight: 20 to 60 parts of silane-terminated polyurethane perpolymer, 30 to 65 parts of a solvent, 1 to 3 parts of a water-removing additive, 2 to 10 parts of carbon black, 1 to 2 parts of an anti-settling agent, 2 to 5 parts of a cross-linking promoter and 0.05 to 0.2 part of a catalyst A, wherein, raw materials for the silane-terminated polyurethane perpolymer comprise, by weight, 15 to 25 parts of polyether polyol, 12 to 24 parts of diisocyanate, 0.01 to 0.05 part of dibutyltin dilaurate or stannous octoate, 30 to 60 parts of ethyl acetate and 12 to 22 parts of an end-capping reagent. According to the invention, disadvantages of the prior art are overcome; when the silane modified polyurethane glass primer is used at normal temperature for 40 min in the air, the phenomenon of obvious thickening does not appear, and a film is not formed on the surface of the glass primer; the glass primer facilitates construction and is simple to use, and when used, the glass primer is directly poured into a container and then is directly used for brush coating within 40 min.

The invention provides a coating with a long-term stability, belong to the field of coating technology. The coating comprises the following components in percentage by weight: 40-55% of alkyd resin, 4-7% of petroleum resin, 3-25% of pigment, 5-15% of filler, 2-6% of auxiliary agent, 5-15% of organic solvent and 10-15% of surfactant solution with a mass concentration of 2%. The auxiliary agent is a mixture of a dispersing agent, an organobentonite, a catalyst, an anti-skinning agent, a leveling agent and an antifreezing agent at any proportion. The surfactant solution with a mass concentration of 2% is obtained through dissolving the surfactant into water. The product is low in cost, which cannot influence the gloss, adhesion and hardness of the coating. More particularly, the product has a good storing effect, does not have the phenomena such as precipitation, loss of gloss, oil-water separation, pig skin and discoloration after being used for 2 years, and is completely environment-friendly.

The invention relates to cleaning and washing products for sanitary facilities and discloses a thickened phosphoric acid-free detergent; the main active ingredients and the parts by weight thereof are as follows: 1-3 part(s) of straight chain dodecyl benzene sulfonic acid, 8-15 parts of non-ionic surface active agent, 0.2-1 part of corrosion inhibitor and 3-10 parts of hydrochloric acid, the non-ionic surface active agent is selected from or is the combination of any agents from nonyl phenol polyoxyethylene (4) ether, nonyl phenol polyoxyethylene (10) ether, fatty alcohol polyoxyethylene (3) ether and fatty alcohol polyoxyethylene (7) ether. The detergent disclosed by the invention has excellent wall cling property, can effectively remove human excrement, urine alkali and urine scale on the surfaces of enamel lavatory facilities as well as the rust and scale, and the like, in tap water and has the functions of stain removal, cleaning, sterilization and odor removal.

The invention discloses an anionic water-borne epoxy resin emulsion and a preparation method thereof. The preparation method comprises following steps: S1, 160-200 parts of epoxy resin E-44 is added to a reaction vessel, and after heating, 210-250 parts of diisocyanate is added for a reaction; S2, 40-50 parts of polycaprolactone and 30-50 parts of small-molecule diol are added, and a heat insulating reaction is performed for a period of time; S3, 30-40 parts of dimethylolbutyric acid is added, a catalyst is dropwise added, and the heat insulating reaction is performed for a period of time; S4,content of NCO in a system is detected, when content of NCO reaches 1.5%-4.0%, 50-80 parts of epoxy resin E-51 is added, then 10-20 parts of hydrogen peroxide is added, the heat insulating reaction is performed for a period of time, and 300-400 parts of acetone is added for reducing viscosity; S5, cooling is performed, caustic soda is added for neutralization, an emulsifier is added for emulsification, and acetone is removed from the system through vacuum pumping. The anionic water-borne epoxy resin emulsion prepared with the method is milky white and fine in appearance, excellent in storagestability, mechanical stability and freeze-thaw stability, good in water resistance, high in hardness and high in adhesive force.

The invention relates to the technical field of oil gas well cementing, and especially relates to a composite particle, and a preparation method and an application thereof. The composite particle comprises a core which is an elastic particle and a shell layer which is a rigid particle and coats the external surface of the core. The preparation method of the composite particle is characterized in that airflow entrainment is used to drive the elastic particle and the rigid particle to move relative to each other in order to form the composite particle. The composite particle has high temperature resistance, improves the acid and alkali resistance of the elastic particle, has good stability, has good compatibility with cement mortar, has no floatation phenomenon, has no thickness increase phenomenon in the curing process, obviously reduces the elastic modulus of set cement, increases the deformation ability of the set cement, is spherical, and facilitates increase of the fluidity of the cement mortar.

This invention discloses a gelatin synergy polymer lithium iron battery and its making method, which includes: cell core composed of positive plate and negative plate, polymer gelatin on the diaphragm surface of the battery core's anode and cathode, and the polymer gelatin is composed of polymethacrylates, polyacrylonitrile, or copolymer composed of polyvinylidene fluoride and hexafluoropropene, wherein hexafluoropropene molecular weight takes up 10-20% of the copolymer's. Making battery includes the following steps: covering the polymer driving solution on the two ends of the battery core, drying, then injecting electrolyte to make the polymer driving immerse into the electrolyte completely, electrochemically activing the core to form the gelatin, finally obtaining gelatin synergy polymer lithium iron battery. This invention discloses the problem that the discharging rate increases, the voltage lowers and the capacity declines from the battery core 's internal short-circuit.

The invention discloses a filtrate reducer for a water-based drilling fluid and a preparation method of the filtrate reducer. The filtrate reducer for the water-based drilling fluid comprises the following components in percentage by mass: 30-40 percent of acrylamide, 10-20 percent of 2-acryloylmino-2-methylpropyl sulfonate, 20-30 percent of maleic anhydride, 20-40 percent of sodium allylsulfonate, 0.1-0.2 percent of initiator and the balance of water. The filtrate reducer disclosed by the invention has the advantages of low biotoxicity, strong resistance to pollution of calcium ions and magnesium ions and good temperature resistance; and the requirements of the drilling of a gypsum-salt layer on a drilling fluid treating agent can be satisfied, and meanwhile, the filtrate reduction effect is still good in the high-density condition.