48results about How to "Consistent workmanship" patented technology

The invention discloses a dyeing and printing technology of a camouflage fabric. The camouflage fabric is prepared by blending and interweaving the following raw materials in percentage by weight: 30%-50% of cotton fiber, 30%-50% of polyester fiber, 10%-30% of spandex fiber and 10%-20% of spun silk fiber. The dyeing and printing technology comprises the following steps: S1 singeing; S2 cold heaping; S3 alkaline washing; S4 mercerizing; S5 ground dyeing; S6 printing; S7 waterproof and flame-proof treatment; and S8 stentering pre-shrinking. According to the dyeing and printing technology of the camouflage fabric, the high color fastness of the dyed ground color and the front and rear stability of the color of the camouflage fabric can be ensured; the camouflage printing requirements can be met; the quality repeatability is good; and the quality index of the finished product can meet the customer requirements.

The invention discloses an intelligent multi-station cylinder sleeve centrifugal casting machine and belongs to the technical field of machine casting. The multi-station cylinder sleeve centrifugal casting machine comprises a turntable mechanism, a casting mechanism, an automatic cylinder sleeve taking mechanism and an automatic paint spraying mechanism, and is provided with ten stations of a casting station, a cooling station a, a cooling station b, a cooling station c, an ageing station, a door sheet taking station, a material taking station, a cleaning station, a painting station and a drying station; the casting mechanism, the automatic cylinder sleeve taking mechanism and the automatic paint spraying mechanism respectively correspond to the casting station, the door sheet taking station and the material taking station, and the painting station and are positioned outside the turntable mechanism. The intelligent multi-station cylinder sleeve centrifugal casting machine is high in automation degree and realizes full automation in operating links such as automatic casting, automatic cooling, automatic door ring taking, automatic cylinder sleeve taking and automatic paint spraying in cylinder sleeve production, technologies are consistent, the quality is stable, the labor cost is reduced, and the production efficiency is improved.

The invention relates to a vacuum high-pressure casting process method for a wheel disc casting. The method comprises the following steps of: after melt casting is finished, sequentially and centripetally filling a model from a wheel flange to a wheel center through a broken ring-shaped runner and a tangential ingate with the assistance of vacuum; and after model filling is finished, jointly pressurizing by a pressure head and a pressure filling head which is positioned on an epitaxial slag ladle of the wheel center and maintaining the pressure till a casting is fully solidified to obtain a high-quality wheel disc casting which has the advantages of high-quality wheel flange model filling and no solidification contraction and blowhole defect on a wheel flange hot spot and a wheel center hot spot.

The invention discloses a single tin salt electrolytic coloring additive. The single tin salt electrolytic coloring additive comprises a complexing agent, a buffer agent, an antioxidant and a surfactant, wherein the antioxidant comprises ferrous sulfate; the single tin salt electrolytic coloring additive also comprises an auxiliary agent containing ferrous sulfate; the auxiliary agent comprises modified amino amide zinc phosphate. The single tin salt electrolytic coloring additive disclosed by the invention has good comprehensive performances, solves the problem that nickel must take part in the reaction in an electrolytic coloring process, and is stable in groove liquid and quick and uniform to color, and the cost can be lowered effectively. Moreover, the single tin salt electrolytic coloring additive is low-carbon, energy-saving and green and environment-friendly, and process and product quality consistent to those of a double salt system can be obtained.

The invention discloses a PVDF fluorocarbon powder coating and a preparation method thereof. The PVDF fluorocarbon powder coating comprises the following materials: ultra-fine PVDF resin, auxiliary solid resin, a pigment and an auxiliary agent; the PVDF fluorocarbon powder coating is characterized in that the weight ratio of the ultra-fine PVDF resin to the auxiliary solid resin is 70:30, the auxiliary solid resin comprises acrylic resin and alicyclic epoxy resin, wherein the weight ratio of the acrylic resin to the alicyclic epoxy resin in the auxiliary solid resin is (5:25)-(25:5); and the preparation method comprises the following steps: (1) dispersing and mixing the auxiliary solid resin and the pigment at a high speed and performing rubbing to generate heat; (2) adding the ultra-finePVDF resin, performing high-speed dispersion and mixing continuously, and performing rubbing to generate heat; (3) performing melt extrusion, performing cooling, performing drying, and performing pressure-roller cutting; (4) spraying liquid nitrogen and performing freezing; (5) performing crushing, and in the crushing process, performing freezing by using liquid nitrogen; (6) classifying powder; (7) collecting qualified powder, adding an adhesion accelerator and a nano modifier auxiliary agent, and performing spheroidization and loosening treatment; and (8) screening powder which meets a standard. According to the technical scheme, a problem that the PVDF resin is plasticized is avoided, and therefore the PVDF resin and the acrylic resin are mixed uniformly.

The invention provides a special-shaped steel rail which comprises a rail head 11, a rail waist 12 and a rail bottom 13. The steel rail further comprises an arch slope 14 protruding out of the surface of the steel rail. The invention further provides a steel rail glue joint insulating joint. The insulating joint comprises two special-shaped steel rails connected in series. By means of the glue joint insulating joint, a large rail seam does not occur on the connection portion of the two steel rails connected in series. Besides, the probability that the steel rail glue joint insulating joint is damaged by temperature stress and train impact and accordingly fails can be substantially reduced. The steel rail glue joint insulating joint can fully resist temperature stress changes of a seamless line and impact force generated during running of a train, and development requirements of the trans-section seamless line are met.

The invention provides an improved screen print production line of figure-number steel plates. The improved screen print production line combines the screen print and the roller coating print, and therefore not only can acquire comparatively accurate underpainting patterns but also can acquire comparatively massive and highly three-dimensional printing layers; and meanwhile a servo control system, which is used for controlling the rotational speed and starting time of the material adsorbing roller and the coating roller of a roller equipment component, is added to a roller painting section, so that the consistency of linear velocity of a practical roller face and the rotational speed of the technology is ensured. Thus, the production line does not need to be stopped for an adjustment in the production process and the production efficiency is improved.

The invention belongs to the technical field of cell observation, and particularly relates to an intelligent dyeing system and method. The system comprises a transmission part which comprises a motion transmission mechanism, a first mechanical arm and a sensor and is used for automatically putting a smear into a dyeing area and taking the smear out of the dyeing area after dyeing, a liquid dripping part which comprises a second mechanical arm, a dyeing liquid dripping pipeline, a cleaning liquid flushing pipeline and a waste liquid collecting pipeline, and is used for dripping dyeing liquid and buffer liquid to the smear and flushing redundant dyeing liquid after dyeing, a mixing part which is used for uniformly mixing the dyeing liquid and the buffer liquid on the smear, a gland part which is used for fixing and sealing the smear, a drying part which is used for drying the smear which is dyed and washed, and a control part which is used for controlling the transmission part, the liquid dripping part, the mixing part, the gland part and the drying part according to preset operation steps. The observation liquid prepared by using the system not only has a better observation effect, but also enables the observation to be more efficient.

The invention provides a steel rail cementing insulating joint. The steel rail cementing insulating joint comprises two steel rails connected in series, insulating end plates arranged at the joint of the two steel rails, insulating trough plates tightly attached to the two sides of the steel rails, clamping plates arranged on the outer sides of the insulating trough plates, and screw joint insulating assemblies used for fastening the clamping plates and the insulating trough plates to the steel rails. The screw joint insulating assemblies comprise bolts, nuts, gaskets and insulating casing pipes arranged on the outer circular faces of the bolts in a sleeving mode. The steel rails further comprise arch slopes protruding out of the surfaces of the steel rails, convex layers matched with the arch slopes are correspondingly arranged on the insulating trough plates, and concave openings matched with the arch slopes and convex layers are correspondingly formed in the clamping plates. The cementing insulating joint can sufficiently resist the temperature stress changes of seamless tracks and the impact force generated in the running process of trains, and the development demands of trans-regional seamless tracks are met.