52results about How to "Effective product quality control" patented technology

The invention discloses a preparation technology of high-purity flomoxef sodium. The preparation technology includes following steps: on the basis of a flomoxef intermediate, performing an acidifying reaction to obtain a reaction liquid; performing a water washing process, an extraction process, an aseptic filtration process and the like to the reaction liquid; and performing a solventing-out crystallization step through a one-step crystallization process to obtain a flomoxef sodium product with a purity being higher than 99.90%, wherein key points in the solventing-out crystallization step are selection and proportion of a solventing agent and dropwise addition of a salifying agent and the solventing agent at the same time with crystal growing. The preparation technology overcomes problems which are difficult to control during the solventing-out crystallization step of the flomoxef sodium. The flomoxef sodium is prepared in one step with the flomoxef intermediate as a raw material and the purity of the product of the flomoxef sodium reaches higher than 99.90% just through one crystallization step, which is cannot be achieved through a freeze-drying method or a common solventing-out crystallization process in the prior art. Quality of the product is in conformity with or even exceeds a standard in japanese pharmacopoeia JP16. The preparation technology has a more wide application prospect.

The invention discloses a melicitrin organic composite fertilizer with formula as: one or the mixture of melicitrin oil meal, melicitrin oil, melia or toosendanin oil meal, soybean oil meal, peanut oil meal, cottonseed oil meal, tea-seed oil meal, colza oil meal, and castor oil meal; bentonite, and water. Wherein, mixing the breaked oil meal, adding melicitrin oil, bentonite, and water; granulating with the mixed material in extruder; packaging. This invention is simple, can obtain organic fertilizer with well effect fit to green nuisanceless agriculture, improves the soil, and also has some pest control function.

The invention belongs to the field of heat-exchange devices, and particularly relates to a baffling assembly. The baffling assembly consists of a baffling plate and two side plates, wherein the baffling plate is formed by welding of two corrugated plates in a crest-to-crest manner; turned edges are arranged on four edges of each corrugated plate; the two side plates are welded with the turned edges on left and right sides of the two corrugated plates in the baffling plate; the side plates are perpendicular to the baffling plate; a bayonet is formed by the turned edges on back sides of the two corrugated plates. The invention further relates to a welded plate-type heat exchanger. The welded plate-type heat exchanger comprises a frame, a press plate, a heat-exchange core and the baffling assembly, wherein the two side plates in the baffling assembly are mounted on inner walls of the frame in parallel; the bayonet formed by the turned edges on the back sides of the two corrugated plates is clamped on a plate-side runner in the middle of the heat-exchange core; the turned edges on front sides of the two corrugated plates are fit with the press plate. By the aid of the baffling assembly, the strength of the baffling plate can be enhanced, deformation caused by fluid scouring can be prevented, and the baffling assembly is convenient to assemble; the welded plate-type heat exchanger provided with the baffling assembly also has the technical effects.

The invention relates to a magnetic ring automatic arrangement mechanism belonging to the production and machining machinery of magnetic rings. The magnetic ring automatic arrangement mechanism is structurally characterized by comprising a blank compact working table, a magnetic ring arrangement platform, a push-out device and a turnover plate; the blank compact working table and the magnetic ring arrangement platform are respectively connected with the turnover plate; the push-out device is arranged below the blank compact working table on which a magnetic ring guiding barrier strip is arranged; a magnetic ring arrangement guiding barrier strip is arranged on the magnetic ring arrangement platform; a magnetic ring turnover groove and a magnetic ring vertical alignment outlet are arrangedon the turnover plate; and the positions of the magnetic ring guiding barrier and the magnetic range arrangement guiding barrier respectively correspond to the magnetic ring turnover groove and the magnetic ring vertical alignment outlet. The invention has the advantages of reasonable structure design, automatic arrangement of magnetic rings, high working efficiency, convenience and practicality.

A printable transfer film for generating pattern on fabric or leather is composed of film as carrier, parting layer, thermo-fusible adhesive layer, and printable layer. Its preparing process and a method for generating pattern on the object are also disclosed.

The invention discloses a tracking method of a station-level vehicle body tracking system, which is characterized in that: 1) the sled enters the initial station to trigger the first proximity switch; 2) the sled continues to move forward, and the photoelectric switch senses the vehicle body, The vehicle body triggers a photoelectric switch to bind the VIN information of the vehicle body with the vehicle body; 3) the skid triggers the second proximity switch, and the vehicle body drives into the station; The skid carries the vehicle body forward and leaves this station, and the vehicle body first finishes triggering the photoelectric switch; 5) the sled finishes triggering the first proximity switch; 6) when the sled finishes triggering the second proximity switch, the vehicle body Drive out of the station; 7) Automatically transmit the vehicle body information to the next station, and the information of a plurality of vehicle bodies is transmitted in sequence to form a body-in-progress queue. The tracking method can realize real-time tracking of the vehicle body, is easy to maintain, is easy to implement, and can effectively control product quality, and has strong practicability and good application prospects.

The invention provides a method for controlling the ultra-fine crystallization gradient of a deep conical copper medicine-shaped mask structure, which includes extrusion forming, recrystallization heat treatment, and high-frequency impact steps. The extrusion forming adopts multi-pass extrusion; The high-frequency impact knocking speed is 15000-40000 times / min, the knocking force is 1200-2000N, and the number of times is 1-3 times. The control technology of the invention realizes the forming and surface quality control of the deep-tapered liner; improves the plasticity of the material and obtains a fine-grained structure; and forms an ultra-fine-grained gradient structure distributed along the thickness direction on the inner surface of the lined liner. The ultra-fine grain gradient structure distributed along the thickness direction of the liner is obtained by this method, and the structure is evenly distributed along the generatrix direction, which provides a new preparation method for the development of high-performance deep tapered copper liner.