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 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.

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.