177results about How to "Intrinsic Quality Guarantee" patented technology

The invention provides an intelligent monitoring system for the quality of a PCB solder paste printing process and a method. The system comprises a data acquisition module, a printing quality management database, a statistical analysis module and a light control module, wherein the data acquisition module is used for performing real-time acquisition of various parameter data of PCB printing solder paste, which is detected by an SPI detection system; the statistical analysis module is used for acquiring and analyzing the data acquired by the data acquisition module, judging whether the quality of the solder paste printing process is controlled or not according to an analysis result, and sending a signal representing that the quality of the printing process is out of control to the light control module when the quality of the solder paste printing process is out of control or tends to be out of control; and the light control module can control different warning lights to give a warning of specific out-of-control conditions. Through the system and the method, the defect that the quality of a printing process cannot be monitored in the prior art is overcome, the printing process can be monitored, and a warning can be given in time when that the printing process is out of control is found so as to reduce defects in solder paste printing.

The invention relates to an as-cast cast iron with high carbon and high chromium and a preparation method, which belongs to the technical field of metal wear-resistant material. The invention is characterized in that the composing components of the cast iron with high carbon and high chromium are (in weight percentage): 4.5 to 5.5 C, 22.5 to 30.8 Cr, 3.0 to 5.0 V, 0.7 to 1.2 Mn, 0.2 to 0.5 Nb, 0.5 to 1.0 Ti, 0.08 to 0.20 Mg, 0.05 to 0.20 Na, 0.05 to 0.20 RE, Si of less than 1.0 and Fe as well as unavoidable trace impurities for the rest, and Cr-to-C ratio is no less than 5.0 and no more than 5.6; the as-cast cast iron with high carbon and high chromium of the invention can be produced in an electric stove with the tapping temperature of 1440 to 1480 DEG C, and is inoculated with ferrovanadium particles after tapping; combined modification treatment is done with rare earth magnesium alloy and sodium salt; the casting temperature of hot metal is 1350 to 1380 DEG C; and the cast iron with high carbon and high chromium can be directly used after stress relief annealing treatment at the temperature of 200 to 280 DEG C. The invention has the advantages of no need of high-temperature heat treatment, low energy cost, short production period, good casting performance, high hardness and excellent abradability.

A process for extracting the codonopsinose used to prepare the codonopsinose medicines in the form of infusion, capsule, syrup, or oral liquid includes cutting the pilose asiabell root, decocting 2-3 times, collecting filtered decoction, vacuum concentrating, cooling, centrifugal separation, drying the deposit, and pulverizing.

A process for preparing the quickly frozen yam particles includes such steps as immersing raw yam in disinfecting liquid, peeling, cutting into segments, immersing in color protecting liquid and then in disinfecting liquid, granulating, loading in plastic bags and quick freezing.

The invention discloses a polymorphic nitro-compound fertilizer, relating to the technical field of agricultural fertilizers. The polymorphic nitro-compound fertilizer comprises the following raw materials in parts by weight: 30-150 parts of urea, 160-600 parts of nitramine phosphorus, 0-120 parts of ammonium sulfate, 180-250 parts of potassium sulphate, 100-200 parts of monoammonium phosphate and 1-10 parts of medium and micro fertilizers. The polymorphic nitro-compound fertilizer is produced by mixing, granulating and cooling the raw materials. The polymorphic nitro-compound fertilizer adopts scientific proportion, has complete nutrition, can continuously nourish crops at gradient so as to be more beneficial to the full absorption of the vegetable crops, and can remarkably promote the growth and high and stable yield of the crops, thus having strong market competitiveness.

The present invention relates to a preparation method of quick-frozen burdock. Said preparation method includes the following steps: soaking burdock in sterilizing liquor to make sterilization, peeling, cutting to obtain burdock block, soaking said burdock block in colour-protecting solution to make colour protection, then further soaking said burbock block in the sterilizing liquor to make sterilization, quickly freezing, ice-coating and further freezing so as to obtain said invented finished product burdock block.

The invention discloses a flaw precise positioning method for steel rail ultrasonic flaw detection. In the method, a steel rail to be tested is processed into a plate sample of which the thickness is the same as that of the rail waist, a detection route in which the directions of two wheels are vertical is adopted, the central point of a flaw source of the steel rail is determined, and the flaw point is detected and analyzed by a linear cutting method; and thus, an ultrasound probe is in complete fit with the test sample, the detection accuracy is improved, the hit rate and accuracy of the positioning of the central point of the flaw source are increased, detection result offset caused by the offset of the central point is avoided. In addition, the linear cutting mode is used for dissecting the flaw source of the steel rail accurately and the data on the central point of the flaw source and the flaw type can be obtained by further detection and analysis, so an accurate detection basis is provided for improving the quality of the steel rail; and by corresponding control measures, the flaw rate of the steel rail is lowered effectively and the internal quality of the steel rail is assured.

The invention relates to a glimepinride tablet preparation method, which comprises 1) glimepinride and microposer silica gel are ground with a micronizaion method, and the mixture powder of micronized glimepinride and microposer silica gel is obtained after passing through a screen of 80 to 100 mesh; wherein, the weight ratio of the glimepinride and microposer silica gel is 1: 1; 2) the mixture powder obtained in the step 1) is mixed with filling agent, disintegrant, lubricant, bond and 30 percent to 40 percent by volume concentration of ethanol solution for 15 minutes to 20 minutes in normal temperature, and passes through a screen with 18 to 24 meshes to obtain the particles. The particles adopts micronization technique to increase the surface area of slightly soluble main drug to facilitate glimepinride pulverization so that the wettability of the surface of the powder particles is improved and the dissolution of the raw medicine in tablets and the quality stability of the product during storage time are improved.

The invention discloses an edible brine and a preparation method thereof, which relates to a brine and a preparation method thereof. The edible brine is natural edible brine which is prepared by compounding a composition A and a composition B according to the weight proportion of 1:1.5-2.5, wherein the composition A is prepared by mixing and boiling chives oil and soycheese according to the weight proportion of 3-5:1, and the chives oil is prepared by mixing and boiling vegetable oil, chopped scallion pieces containing root and parsley; the composition B is spice sauce solution; the preparation method comprises the following steps: firstly the composition A is prepared, then the composition B is prepared, finally the composition A and the composition B are mixed according to the proportion, and the steps thereof are as follows: preparation of the composition A, preparation of the composition B, mixing and packaging. The edible brine can be stored and transported conveniently, and is clean, healthy and aromatic in flavor; the edible brine is an excellent seasoning being pure natural, nutritional and healthy, which not only is suitable for being used as a spice of rice stick, but also can be applicable to various soup blends, hot pot and the like, therefore, the edible brine has the advantages of large demands, low cost and very broad market prospect.

The invention relates to a field welding method for wall boards of a steel lining of a nuclear power plant, belonging to the technical field of building decoration of the nuclear power plant. The method comprises the following steps of: assembling the wall boards of the steel lining in place through a tool and randomly selecting a vertical seam between the wall boards of the steel lining as a shrinkage vertical seam for field final welding; performing spot welding on a vertical seam opposite to the shrinkage vertical seam, next performing spot welding on two circular seams adjacent to the left and right sides of the first vertical seam, then continuously performing spot welding on the two vertical seams adjacent to two first circular seams along the clockwise direction and the anticlockwise direction respectively, performing spot welding on all vertical seams and circular seams at spaced locations along the clockwise direction and the anticlockwise direction respectively from the first vertical seam by analogy, until the final manual spot welding is performed on the shrinkage vertical seam; and repeating the steps to perform automatic full-length welding on all vertical seams and circular seams from the first vertical seam which is subjected to spot welding, until the final automatic full-length welding is performed on the shrinkage vertical seam. According to the method, field mounting of the wall boards of the steel lining of the nuclear power plant is performed by using a tungsten electrode argon arc automatic welding machine, the welding deformation is reduced, and the mounting working efficiency and the quality are improved.

The invention provides a preparation method of a composite fruity tobacco essence. The preparation method comprises the following steps: respectively crushing 20-30g of apple skins, 100-120g of grape skins, 80-110g of watermelon peel, 12-20g of orange peel, 50-70g of banana skins, 5-10g of mango skins and 20-40g of shaddock peel to form residues, mixing above residues, adding compound enzyme and 800-1000g of water, adjusting the pH value of the above obtained liquid to 5.0-5.3, carrying out enzymatic hydrolysis at 45-50DEG C for 40-60min, heating the obtained liquid to 100DEG C in order to inactivate enzyme, adding 1.2-1.8g of sodium benzoate, 0.2-0.6g of titanium dioxide, 8.5-11.2g of riboflavin, 1-3g of adipic acid, 15-23g of sodium sulfate and 20-25ml of n-butaonl, continuously decocting the obtained liquid at 100DEG C for 1.5-2h, filtering the decocted liquid, and concentrating the obtained filtrate. The essence prepared in the invention has the advantages of high aroma intensity, abundant fruit aromas, and satisfactory improvement of the quality of tobacco.

The invention relates to a production technology of sweet potato vermicelli, which comprises the processes of starchy sauce preparation, dough preparation, vermicelli preparation, cooling and drying, wherein the processes of starchy sauce preparation and dough preparation comprise the following steps: 1) starchy sauce preparation: pouring a fixed quantity of starch into a starchy sauce jar, adding 35-45 DEG C warm water of which the weight is 1.5-2 times the weight of the starch, and stirring uniformly; and adding 94-97 DEG C hot water of which the weigh is 4.5-5.5 times the weight of the starch in weight, stirring uniformly into a paste, and cooling to 68-70 DEG C; and 2) dough preparation: based on 100kg of starch with over 99% of fineness, adding 20-24kg of prepared starchy sauce paste and 52-55kg of 35-45 DEG C warm water, and stirring for 10-12 minutes while ensuring that the temperature in dough preparation is 40-45 DEG C; and pouring the prepared dough into a vacuum machine, and performing vacuumizing treatment through a vacuumizing machine to finish the dough preparation process. In the production technology of sweet potato vermicelli provided by the invention, no additive is added in the starchy sauce preparation process, the color and internal quality of the vermicelli are guaranteed, and the mouthfeel and toughness of the vermicelli are increased by the vacuumizing treatment.

The invention discloses a split bucket tooth for buckets of excavators and a manufacturing method thereof. The split bucket tooth for buckets of excavators is manufactured by three steps: manufacturing of tooth roots, manufacturing of tooth tops and assembling. The split bucket tooth for buckets of excavators is divided into a tooth root and a tooth top, wherein the tooth root and the tooth top are separately forged from different materials; the tooth top adopts materials, the wear resistance of which is superior to that of the materials of the tooth root; the tooth root is made from common materials such as 40Cr and 42CrMo through a common heat treatment method; the tooth top is made from wear-resistant materials such as 20CrMnTi, 38CrMoLA and GCr15 through a wear-resistant heat treatment method; the tooth root manufactured through the manufacturing method can be repeatedly used, so that the process requirement is reduced, the cost is greatly reduced and both the inner quality and surface quality can be ensured; the tooth top is light in weight (about 1/3 of the total weight) and the tooth top selects the wear-resistant materials and a heat treatment process capable of enhancing the wear resistance, so that the wear resistance of the tooth top is greatly improved.

The blood replacing base liquid for blood purifying treatment contains Na, Ca, Mg and Cl ions in the normally physiological allowed range, glucose, K ion component and component capable of producing free phosphoric acid and similar matter. It is suitable for clinical personal use while regulating blood potassium level, ensuring the normal blood phosphorus level during the treatment, ensuring sugar balance and replenishing calorie loss. Compounding the blood replacing base liquid in mass production scale can well meet the clinical requirement and ensure the inherent quality of the blood replacing base liquid.

The invention provides a process for improving the metallographic structure of a piston head and increasing casting production efficiency. The process comprises the steps of: (1) eliminating an exhaust hole and an exhaust nail on a bottom die, and meanwhile reducing the thickness of a wall between the bottom die and a cooling water cavity, respectively subtracting 10mm from the length and the width of a casting head on an outer die, wherein the specifications of the length and the width are respectively 48mm-55mm and 48mm-54mm; and meanwhile, adding 10mm-12mm to the length L2 of the rear part of the outer die, and adding 5mm-8mm to the width D of the rear part of the outer die, wherein the specifications of the length L2 and the width D are respectively 176-mm-195mm and 78mm-85mm; (2) processing a tooling die; (3) preparing for the smelting of an aluminum liquid; (4) assembling and debugging the tooling die; (5) casting in field production; (6) hot treating a piston blank; and (7) detecting the quality of the piston. The invention can refine the metallographic structure of the piston head by 1-2 levels and improve casting efficiency by more than 15%.

The invention relates to a quality control method of Chinese herbal preparation-cannabis fruit spleen-enriching pill for treating constipation, comprising the following steps of: (1) identifying characters; (2) identifying dried immature fruit of citron orange, angelica and magnolia officinalis by the thin-layer chromatography; (3) identifying white paeony root by the thin-layer chromatography; and (4) determining rheum officinale by the high performance liquid chromatography. The quality control method improves and perfects the quality standard of the Maren Zipi pill, revises the character and the microscopical characters of the Maren Zipi pill on the basis of the original standard, and adds the thin-layer identification detection method of angelica, magnolia officinalis dried immature fruit of citron orange and white paeony root in the prescription; the quality control method also formulates to determine the content of rheum officinale in the prescription by the high performance liquid chromatograph by taking rheumemodin and chrysophanol as reference substances; the revised quality standard improves the controllability of the quality standard of the Maren Zipi pill, further guarantees the inherent quality and the curative effect of the product, and has an important meaning for accelerating product sales, increasing the competitiveness of the product in the market and guaranteeing pharmacy safety for patients.

The invention relates to a method for controlling the cooling speed of core assembling casting. A metal solution is poured into a sand mold; and the poured sand mold is put into water, so that a cast inside the sand mold can be cooled and solidified in water. A water-cooling device for controlling the cooling speed of the core assembling casting comprises a stander, a cooling water tank which is arranged on the stander and is used for storing water; and a lifting device is arranged above the cooling water tank and can drive the sand mold into the cooling water tank to be cooled. The cooling speed of different positions of the core assembling casting can be controlled by an external physical cooling measure, namely water cooling, and the device for water cooling, so that quick cooling and partial quick cooling can be realized, and internal quality of the cast is guaranteed; therefore, the core assembling casting process can be used for producing a batch of casts, such as an aluminum alloy cylinder cover in the automobile industry, which have high quality requirement, complicated shapes and partial hot joints.