31results about How to "Improve the level of processing technology" patented technology

The invention belongs to the field of measurement of the diameter and the space coordinate geometric dimensioning of a spatial curved surface thin-wall micro-hole, and relates to a method for measuring the diameter and the coordinate position of the spatial curved surface micro-hole in a non-contact mode, in particular to the method for measuring the diameter and the coordinate position of the spatial curved surface micro-hole in a blade body of a blade by compositely designing and applying a telecentric optical lens and a five-axis coordinate measurement machine. A contact-type probe of the five-axis optical composite coordinate measurement machine is used for setting up a measuring basis of the diameter and the coordinate position of the spatial curved surface micro-hole of a workpiece, a two-dimensional rotating table is used for determining a spatial posture according to the direction of the axis of the spatial curved surface micro-hole, and the telecentric optical lens is used for extracting an image of the spatial curved surface micro-hole. The method can solve the difficult technical problem that data extraction and evaluation can not be conduced due to the fact that the image of the micro-hole is blurred, digitalized precise measurement of the diameter and the coordinate position of the spatial curved surface micro-hole is achieved, and the feasible measurement method is provided for effectively controlling machining quality of a gas film hole of the blade of an aviation engine and the like.

A chitosan-Cu matches as the adsorptive additive of filter tip for cigarette in order to adsorb tar and nitosamine from the smoke of cigarette is prepared from chitosan and copper sulfate through proportional mixing in organic solvent, centrifugal deposition, washing, drying and pulverizing.

The invention relates to a hollow axle inner-hole coaxiality detection device comprising a measuring instrument, a slewing mechanism, and a self-centering assembly extending into the inner hole of an axle and fixed. The measuring instrument is fixed to the slewing mechanism. The slewing mechanism and the self-centering assembly are connected rotationally. The measuring instrument is driven by the slewing mechanism to rotate along the outer circumference of the axle. The hollow axle inner-hole coaxiality detection device has a simple and compact structure, is easy to carry for operators, facilitates quality control and mass production size detection on a production site, and is highly versatile and low in cost. There is no need to extend a dial indicator into the inner hole of the axle during measurement. The difficulty in measurement is reduced. Operators can observe detection conveniently. Measurement is very convenient and quick, and the detection cycle is shortened greatly.

The invention discloses a method for measuring the dosage uniformity of glyceryl triacetate in cigarette filters. The method comprises the following steps: (1) sampling, namely taking filter samples of more than 30 batches from a filter forming shop at the same time interval according to the requirement of national standard; (2) placing the samples, namely placing the filter samples in a regulated atmospheric environment stipulated according to national standard for at least 24 hours; (3) sectioning the samples, namely cutting the filters by 1cm-4cm in radial direction, and simultaneously, cutting 1 / 8-1 / 2 of the filters in axial direction; and (4) detecting, namely randomly numbering the prepared inspection samples, detecting the content of glyceryl triacetate in the samples according to the standard of tobacco industry, and finally, evaluating the uniformity. The method can be used for accurately measuring the dosage uniformity of glyceryl triacetate in the filters and further objectively evaluating the technological level of a glyceryl triacetate addition process during the filter forming process, thereby having important significance to improvement of filter forming equipment, enhancement of the level of filter processing technology and stabilization of tobacco product quality.

The invention provides the texture control technology of an instant shellfish processing operation, which is established aiming to a result of synergistic action of collagen and fibrillin of shellfish product quality including abalone, conch and the like formed by non-uniform proteins. Based on the systematic study of the quality change rule during the hot working process of the above shellfishes, an area suitable for the processing operation is figured out to obtain the good quality of the shellfishes. Thus, the texture control technology of shellfishes containing non-uniform combinations is established. The technology comprises the following steps of carrying out treatments of flavoring and protein tissue form shaping on shellfishes after taking out the meat by different modes of freshness, heat treatment and freezing, so as to improve the quality of the shellfishes. Firstly, the actomyosin dissociation is promoted through adjusting the processing temperature, so as to enable the tissues of the shellfishes to be soft and tender. Secondly, modified collagen dissolves into myofibril tussues through controlling the denaturation degree of collagen protein, so as to improve the elasticity of the tissues. Then the temperature is slowly raised until the shellfishes cure. Raw materials after film treatment are packaged by directly pumping or charging nitrogen or are quickly frozen to fixed form in a quick freezer and then are packaged by directly pumping or charging the nitrogen. The invention is established on the basis of systematically studying the abalone, a relevant result can be applied to congeneric conch, congeneric neverita didyma, congeneric neptuneacumingi, congeneric rapanathomasiana and the like and can also be expanded into shellfishes including bloody clam which is rich in the collagen and has fat foot and torikai.

The invention discloses an automatic production line of oolong tea, comprising a drum-type tea de-enzyming machine, a cooling belt, a first elevator belt, a first storage cylinder, a trimmer, a third elevator belt, and a drum-type bare breaking screener which are orderly arranged front to back, wherein, a positive / negative rotating transmission belt, a second elevator belt, and a second storage cylinder are orderly arranged between the drum-type bare breaking screener and the third elevator belt, the top end of the second elevator belt is arranged below the tail end of the positive / negative rotating transmission belt, and the side of the top end of the positive / negative rotating transmission belt is provided with a dryer. The automatic production line of oolong tea has the advantages of high production efficiency, low energy consumption, high automation degree, good control precision, and simple operation and maintenance.

The invention discloses a technique for controlling mesoplasm in processing instant scallop, which is a proper processing technique established aiming at the variation of myofibril of scallop through systematically studying the protein compositions of marine bivalve mollusk of pectinidae and the characteristics of the processing process. The technique comprises the following steps of: eviscerating the hot myofibril, the frozen myofibril or the directly fetched myofibril at 20-40 DEG C, immersing in 0.5-3% NaCl for 20-50 min, leachating for using; immersing molluse meat in spice soup with 1-2 times of mass at 50-70 DEG C for 0.5-5 h to achieve tasty effect and shaping the shape of protein tissue; and then slowly heating to be cured in the original spice soup; immersing the edible muscle parts of the fully cured mollusk in an envelope solution containing sodium alga acid and konjaku powder for 3-10 S, and then taking out and leachating; directly vacuuming and packaging the enveloped raw materials, or introducing nitrogen to package, or quickly freezing in an instant freezer to shape the state, and then rapidly vacuuming and packaging, or introducing nitrogen to package; directly freezing the packaged myofibril products for selling, or sterilizing at 90-120 DEG C for 30-60 min, freezing, storing in cold, or being ready for selling at the normal temperature.

The invention relates to a high-strength wastewater treatment catalyst and a preparation method and application thereof. The preparation method comprises the steps that a catalyst carrier is dipped into a mixed solution containing at least two inorganic salts at a time and then is taken out for thermal treatment, the enhanced catalyst carrier is obtained, and the inorganic salts include alkali metal salts or / and alkaline metal salts; the enhanced catalyst carrier loads active components, and the high-strength wastewater treatment catalyst is obtained. The obtained high-strength wastewater treatment catalyst is large in specific surface area and high in reactivity and strength, the compressive strength reaches 60-80 N, and the using requirement for a fixed bed catalyst chamber can be met.

The invention discloses a preparation method of a high-emulsibility CNPPs (casein non-phosphopeptides)-soybean polypeptide assembly protein, which relates to a preparation method of a CNPPs-soybean polypeptide assembly protein and aims at solving the problems of single category and bad emulsibility and stability of existing soybean protein. The method comprises the following steps: 1. preparing a casein suspension, adding alkaline protease, regulating the pH value, carrying out enzymolysis, regulating the pH value, centrifuging to extract supernatant, adding a CaCl2 solution and an alcohol solution, reacting and centrifuging, and concentrating the supernatant to obtain a solution; 2. preparing a defatted bean pulp suspension, adding the alkaline protease, regulating the pH value, carrying out enzymolysis to obtain protein hydrolysate, dialyzing and ultrafiltrating the protein hydrolysate, and carrying out rotary evaporating on the dialyzed and ultrafiltrated protein hydrolysate to obtain a solution; and 3. mixing the solutions prepared in the step 1 and the step 2 with chymotrypsin, stirring the mixture in a water bath, regulating the pH value, reacting, filtering the reaction product, and drying the reaction product to obtain the CNPPs-soybean polypeptide assembly albumen powder. The preparation method disclosed by the invention is used for preparing the CNPPs-soybean polypeptide assembly protein.

The invention discloses a pulsed eddy current detection method and a detection device for conductivity of a ferromagnetic metal material, and belongs to the technical field of electromagnetic nondestructive testing. The method comprises the following steps of: using an inductive voltage measurement curve to establish the least squares problem between a measured value of an induced voltage time domain signal and a theoretical calculated value to invert the conductivity and magnetic permeability of a ferromagnetic member to be tested, based on a time-domain analytical solution of an induced voltage of a pulsed eddy current detection model of a ferromagnetic plate; obtaining a change curve of conductivity inversion results under different amplitude pulse current excitations by gradually increasing the amplitude of a pulse excitation current; and finding an intersection point of the change curve of the conductivity inversion results and an ordinate axis by a curve fitting method, that is,the conductivity of the ferromagnetic member to be tested. The method and device provided by the invention can provide non-contact and nondestructive detection for the conductivity of the ferromagnetic metal material in the industry, weaken the influence of the nonlinear change of the magnetic permeability on the conductivity detection result, and improve the accuracy and reliability.

The invention discloses a low-histamine fish product processing method. The low-histamine fish product processing method comprises the following steps: selecting a fish with relatively high integrity and freshness as a frozen raw fish, and freezing the fish; thawing the frozen raw fish by ozone-containing flowing water with a certain flow velocity, wherein in the process of thawing, the temperature of water in a thawing tank does not exceed 15 DEG C and the processing time does not exceed 45 minutes; controlling the indoor ambient temperature of a processing workshop to be below 21 DEG C and the relative air humidity to be less than 70%; and sterilizing the raw fish, rapidly cooling the raw fish and taking fish meat, mixing the fish meat with a certain amount of flavoring liquid, and then canning the fish meat to obtain a finished product. The low-histamine fish product processing method has the advantages that: the growth and metabolism of a bacterial population with an activity of generating amino acid decarboxylase in the aquatic product canning process can be inhibited or eliminated better; and the generation of the amino acid decarboxylase is eliminated from a source so as to further control the generation of histamine.