40results about How to "Expand the variety range" patented technology

The invention discloses a processing method of rare-earth photochromic flashing air-jet vortex yarn, which comprises the following steps: respectively carding and opening rare-earth photochromic fibers and other fibers; using airflow to quantify rare-earth photochromic fibers and other fibers Condensation and mixing; then carding, and three drawing frames; use air-jet vortex spinning to process the mixed fibers to obtain rare earth photochromic fiber flashing color air-jet vortex spinning after drafting, twisting, winding, and winding. In the present invention, the rare earth photochromic fiber is blended with other natural-colored fibers or the colored fiber with obvious color contrast with the rare-earth photochromic fiber or the mixture of the natural-colored fiber and the colored fiber. The thread presents a flashing effect; on the other hand, the prepared yarn no longer needs a dyeing process, which avoids the problem of difficult dyeing of rare earth photochromic fibers, and reduces production costs at the same time.

The invention discloses a high-temperature pulse flow yarn dyeing machine with an ultra low bath ratio and a control method thereof. The yarn dyeing machine comprises a dye vat, a creel, a heat exchange coiler, an adaptive water level monitoring device, a variable frequency motor, a three-level vane pump with an ultra low bath ratio and a dyeing computer. The method comprises the following steps:a time pulse generator in the dyeing computer gives out pulse flow data to a variable frequency motor controller to control the revolving rate of the variable frequency motor according to the set technological process; the variable frequency motor drives the three-level vane pump with an ultra low bath ratio to output dyeing flow in pulse flow type fluctuation; the output dyeing flow carries out adaptive adjustment according to an ideal reference model in the dyeing computer; the adaptive water level monitoring device gives out water-level reference identification information; and according to the information, a water level regulator and the variable frequency motor controller respectively regulate the water level and the variable frequency motor to reach the water level and the pulse flow required by the set technological process. The pulse flow dyeing technology in the invention conforms to the requirement of the minimum consumption of four factors, namely, water, energy, accessory ingredient and time for economical dyeing of ecological environment protection.

The invention relates to the technical field of textile manufacturing, and especially relates to a knitted denim fixing method. The method comprises the following steps: conveying a knitted denim by a denim charging mechanism, and allowing the knitted denim to go through a denim guide roll having a narrow groove and used for preventing the knitted denim from crimping in the conveying process; allowing the knitted denim conveyed through the denim guide roll to reach a penetration water tank and the knitted denim to fully penetrate in water and absorb water until the water content of the knitted denim is 60-80%; rectifying the deflection of the weft filaments of the penetrated knitted denim through a weft adjusting device; and adjusting the knitted denim speed, fixing the knitted denim through a fixing oven, cooling, and finally doffing. The addition of the penetration water tank to a fixing machine in the invention makes the knitted denim fully penetrate in water and absorb water to guarantee the shrinkage rate and the gram stabilization of the knitted denim, so a best denim cover condition is created from the knitted denim fixing, and the kind range of the knitted denim is substantially increased.

The invention discloses a method for producing an extra-deep drawing cold-rolled steel plate based on a sheet billet continuous casting and rolling process in ASP, and belongs to the technical field of rolled steel. After molten steel meeting the component requirement is obtained by adopting molten iron pretreatment, a converter, LF and RH, a hot-rolled substrate is produced by the sheet billet continuous casting and rolling process in the ASP, and the hot-rolled substrate is subjected to acid washing, cold rolling, cover annealing and leveling processes to obtain the extra-deep drawing cold-rolled steel plate. Compared with the prior art, the performance of the produced extra-deep drawing cold-rolled steel plate meets the European standard EN10130-2006, meanwhile, the production cost is reduced, energy is saved and consumption is reduced. The method broadens the variety range of products produced by a sheet billet continuous casting and rolling production line in the ASP, can meet the increasing requirements of the industries of automobiles, home appliances, buildings, transports, light industry and the like for plates, and improves the product competitiveness of enterprises.

The invention provides hollow wiredrawing cloth with weft wiredrawing and a manufacturing method thereof, and belongs to the technical field of textiles. The hollow wiredrawing cloth comprises upper-layer base cloth, lower-layer base cloth and weft-wise drawn wires for connecting the upper-layer base cloth and the lower-layer base cloth, and further comprises auxiliary warp yarns for weaving. Thewhole manufacturing process comprises the following steps: warping, drafting and denting, and calculating, weaving, gluing, dissolving in water and finishing according to the heights of the upper-layer base cloth and the lower-layer base cloth, the length required by the weft-wise drawn wires and the consolidation position of the weft-wise drawn wires on the upper-layer base cloth and the lower-layer base cloth. The requirement for equipment is simple, under the condition that the upper-layer base cloth and the lower-layer base cloth are in a planar double-face wavy shape or in a planar one-face wavy shape, weaving can be completed on a 1*3 single-face multi-shuttle-box shuttle loom with the help of the auxiliary warp yarns, the auxiliary warp yarns are common water-soluble vinylon yarns,the cost is low, the environment cannot be polluted, most importantly, the auxiliary warp yarns are located between the upper-layer base cloth and the lower-layer base cloth, the shape of the upper-layer base cloth and the shape of the lower-layer base cloth are not influenced at all, the gluing quality is not influenced, and the technological process is smooth.

The invention provides a weft-drawn hollow drawing cloth and a manufacturing method thereof, belonging to the technical field of textiles. It includes the upper base fabric, the lower base fabric, the weft drawing that connects the upper base fabric and the lower base fabric, and also includes the auxiliary warp yarns during weaving. The whole production process is as follows: warping, threading reed, calculation according to the height of the upper and lower base fabrics, the length required for weft drawing, and the position where the weft drawing is consolidated on the upper and lower base fabrics, weaving, glue coating, water-soluble ,tidy. The present invention has simple requirements for equipment, and only needs to be used on a 1×3 single-sided multi-shuttle box shuttle loom when the upper base fabric and the lower base fabric are flat and double-sided wavy or one side is flat and the other side is wavy. Weaving can be completed with the help of auxiliary warp yarn, which is a common water-soluble vinylon yarn, which is cheap and does not pollute the environment. It does not affect the quality of gluing, and the process flow is smooth.

The invention discloses an exterior color-mixed nylon powder coating and a preparation method thereof, belonging to the field of preparation of nylon powder coatings. The exterior color-mixed nylon powder coating is formed by mixing nylon powder, pigments and auxiliaries, and the weight ratio of the nylon powder to the pigments to the auxiliaries is 100:(0.1-15):(0.01-15). The preparation method comprises the following steps: firstly, heating the nylon powder with the need of color mixing to 45-60 DEG C through a high-speed mixing machine, then adding the pigments and the auxiliaries according to the weight ratio, performing high-speed mixing, and adhering the pigments to nylon powder particles to prepare the exterior color-mixed nylon powder coating of a target color. According to the preparation method of the exterior color-mixed nylon powder coating, disclosed by the invention, adverse factors of color mixing of a traditional process are overcome, and the preparation method has the advantages of simplicity, easiness in operation, fast color-mixing speed, convenience in cleaning, mass production and test sample preparation; and the prepared exterior color-mixed nylon powder coating has the advantages of uniform color dispersion, dense and firm coating and good using performances.

The invention discloses a coke pushing process control method for reducing the coke pushing current in the coking oven, which comprises the following steps: 1) After the coke in the coking oven coking process is mature, the furnace door is opened on the left, upper and right walls of the coking oven wall Carry out high-pressure oxygen purging separately until the graphite on the wall is burned; 2) After the oxygen purging is completed, align the coke pusher rod with the coke in the coke oven and gradually move towards the coke. After an instant stop for 1s, continue to advance at the speed of the first gear. When moving forward at the first gear speed for 1‑1.2s, switch to the second gear. After moving forward at the second gear speed for 1‑1.2s, switch to the third gear. After moving forward for 6‑7s, switch to gear 4, and continue to push the coke to push the coke out of the carbonization chamber.

The invention provides a hydrogen hot metal desulfurization method, which adopts a hydrogen top blowing method combined with a two-step process of injection pressurization-recovery decompression to carry out efficient desulfurization reaction of molten iron and recovery of gas after reaction. Firstly, the hydrogen gas is subjected to compression treatment, and the hydrogen gas is blown into the molten iron in the molten iron tank under the predetermined blowing pressure condition; after performing the top blowing treatment for 10 to 20 minutes, the molten iron fully reacts with the pretreated hydrogen gas to form hydrogen sulfide gas; then, decompress and pump the molten iron tank, adjust the pressure in the molten iron tank to a predetermined decompression pressure, recover the hydrogen sulfide gas, and obtain desulfurized molten iron. Compared with the traditional chemical desulfurizer molten iron desulfurization method, the method provided by the invention combines the top blowing method with injection pressurization-recovery and decompression treatment to realize slag-free gasification desulfurization, has excellent desulfurization effect, and is economical and environmentally friendly. Advantages, used for the production of low-sulfur, ultra-low-sulfur high-quality steel.

The invention belongs to the technical field of metal material manufacturing, and in particular relates to super deep-drawing cold-rolled enamel steel produced by an ASP diplex process and a manufacturing method thereof. The enamel steel comprises the following components in percentage by weight: less than or equal to 0.005% of carbon, less than or equal to 0.030% of silicon, 0.10 to 0.35% of manganese, less than or equal to 0.015% of phosphorus, 0.015 to 0.035% of sulfur, 0.015 to 0.050% of acid dissolved aluminum, 0.070 to 0.10% of titanium, 0.0040 to 0.0070% of nitrogen, and the balance of iron and unavoidable impurities. The manufacturing method comprises the following steps of: (1) smelting by a converter, (2) refining by an LF (ladle furnace), (3) vacuum-refining by an RH furnace, (4) continuously casting and rolling, (5) washing by acid, cold-rolling, annealing and flattening. By adoption of the LF and RH diplex process, the mass production of the super deep-drawing cold-rolled enamel steel is successfully realized on an ASP production line.