36results about How to "Reasonable design of process steps" patented technology

This invention relates to a kind of dyeing process to make silk brocade cloth have hollow pearling effect, which comprises dyeing floors, printing, steaming, water washing and stentering and dressing; wherein, in the printing step, by sequence filling caving coloring paste, pearling printing paste and hollow printing paste in the silk brocade cloth, and providing with three pastes' components. The invention makes the traditional style silk have better visual effect by binding the three printing processes to the silk cloth.

The invention relates to a production method of a langasite crystal element, which is characterized by taking a raw material langasite crystal, and cutting into strip-shaped crystal materials; then carrying out crystal orientation angle measurement; using a multi-knife cutting machine for cutting the strip-shaped crystal materials into pieces according to the orientation angle measurement requirements, carrying out rounding treatment and obtaining chip-like crystal materials; sequentially carrying out coarse grinding, medium grinding and fine grinding treatment on the chip-like crystal materials for achieving the respective grinding thickness requirements; carrying out double-sided silver coating treatment on the chip-like crystal materials after grinding, using a vacuum micro-adjustment machine for carrying out frequency adjustment on the chip-like crystal materials after silver coating, and obtaining frequency chips required by manufacturing the crystal element; and placing the frequency chips on a crystal element base, dispensing, fixing, packaging and obtaining the langasite crystal element. The production method has reasonable design of process steps and strong process maneuverability; and the prepared langasite crystal element has large low electrical coupling coefficient, good temperature stability and relatively steep band edge, and can be applied in filters, high-temperature sensors and other aspects.

The invention discloses a high-strength aging-resistant anti-high-pulse flame-retardant hydraulic rubber pipe, and belongs to the technical field of novel materials. The pipe comprises an inner rubberlayer, a first glass fiber layer, a steel wire winding reinforcement layer, a second glass fiber layer, a steel wire braiding reinforcement layer and an outer rubber layer which are sequentially arranged from inside to outside; and the winding directions of the first glass fiber layer and the second glass fiber layer are opposite. According to the pipe, inner rubber plays a role in sealing underthe action of a high-pressure medium so that the pipe can be good in oil resistance, good in fatigue resistance and pulse resistance, relatively high in stress at definite elongation and tearing resistance, relatively small in stress relaxation, relatively good in process performance and relatively high in physical and mechanical performance; outer rubber mainly plays a role in protecting the inner rubber layer, the first glass fiber layer, the steel wire winding enhancement layer, the second glass fiber layer and the steel wire braiding reinforcement layer against the external environment influence so that the pipe can have wear resistance, aging resistance (ozone and hot air), good adhesion and good flexibility; and the process steps of a preparation method of the pipe are reasonable indesign, the working efficiency is improved by 20%, and the product quality of the hydraulic rubber pipe is improved.

The invention discloses a technology for processing a CrNiMo series steel material. The technology comprises the steps of adopting an electroslag remelting technology to obtain a steel ingot which contains 0.14-0.19% of C, 1.5-1.8% of Cr, 0.17-0.35% of Si, 0.4-0.6% of Mn, 0.25-0.36% of Mo, 1.4-1.7% of Ni, 0-0.035% of P and 0-0.030% of S according to percent by weight, forging the steel ingot, then carrying out normalizing and high temperature tempering, carburizing, high temperature tempering and oil quenching, and finally, carrying out low temperature tempering to complete the processing. According to the technology, a heat treatment processing technology which is simple and easy to operate is utilized to ensure the product quality, the problem that a loading part of a coal machine fails to work is solved, the service life of a product is prolonged, and the producing and processing costs are lowered.

The invention discloses a production process of a hollow stabilizer bar, which specifically includes the following steps: (1) blanking, (2) filling the inner sleeve by electric welding, inserting the filled inner sleeve at both ends of the blanking rod respectively, so as to ensure that the end surface of the inner sleeve is filled Slightly 2~3mm inward with the end face of the rod body, and then each end face is fixed with a filled inner sleeve by spot welding; (3) both ends are heated and flattened, and both ends of the rod body with the filled inner sleeve after step (2) are simultaneously Put it into the induction coil for heating, transfer the heated workpiece to the flattening device at the flattening station, and extrude both ends of the workpiece at the same time; (4) Grinding, (5) Drilling, (6) Bending, (7) quenching and tempering, (8) correction, (9) shot blasting, (10) electrophoresis. The invention has reasonable process step design, simplifies the whole production process, reduces the number of operators, lowers the operation intensity, and improves the production efficiency, and the simultaneous flattening of both ends can ensure the flatness of the two ends to ensure the product quality.