82results about How to "Easy product quality" patented technology

The invention discloses a device for automatically assembling screw and an automatically assembling system, the device includes a frame, a locating member, a taking member, a driving member and a screw feeding member: the locating member is for locating a product to special position; the taking member includes a rotating plate, at least three sucking elements fixed below the rotating member and located at a same circumference, and an electric screwdriver connected with the driving member and located upon the circumference; the driving member drives the rotating plate rotating, the electric screwdriver is movably located on the driving member; the screw feeding member includes a feeding plate including feeding positions, each feeding position corresponds to one sucking element; the (driving member drives the sucking element acquiring the screw, and drives the sucking element moving the acquired screw to a position for the electric screwdriver assembling the screw to the product.

The invention relates to a slow release pellet of high-stability type cysteamine hydrochloride and a preparation method thereof. The slow release pellet comprises the following components in portionsby weight: 30-70 portions of cysteamine hydrochloride, 20-40 portions of silicon dioxide and 5-25 portions of polymer material as coating wall material. The preparation method comprises the followingsteps: firstly, using silicon dioxide pellets to absorb liquid cysteamine hydrochloride in proportion to form cysteamine hydrochloride particles; then, using the coating wall material to encapsulate the cysteamine hydrochloride particles to form a membrane cavity control structure; and drying the structure to obtain slow release pellets of 50% cysteamine hydrochloride. The slow release pellet hasthe characteristics of stable product quality, high content, reasonable preparation method, easy batch production and simple using method and can be added into the premix.

The invention relates to a vacuum-pumping system for multiple-dewar interlayer and a vacuum-pumping method thereof. The vacuum-pumping system comprises a vacuum unit, a three-way pipe fitting A, a bypass valve, a preceding stage valve, a three-way pipe fitting B, a holding valve, a holding pump, a system main pump, a water cold trap, a three-way system main valve, a liquid nitrogen cold trap and a vacuum system pipeline, wherein the vacuum unit comprises a main mechanical pump and a pressurizing pump, dewar interlayer opening ports are arranged on the vacuum system pipeline at intervals, and a hot nitrogen port is arranged on the vacuum system pipeline. The vacuum-pumping system can pump multiple dewars at one time, is high in efficiency, solves the problem of large-scale production of the dewars, and saves a great number of manpower and material resources. The vacuum-pumping method is simple in procedure so that operation time for pumping vacuum of the dewar interlayer is greatly shortened, and waste of resources is avoided.

The invention provides a preparation method of nano-manganese oxide which is of a nanowire net structure. The preparation method comprises the following steps: dropwise adding an oxidant containing aqueous solution or feeding oxidizing gas into an active agent containing manganese salt aqueous solution, and uniformly dispersing; carrying out a liquid-phase co-precipitation reaction, so that nano-sized manganese dioxide is suspended in the solution; filtering the solution; and washing and drying the obtained precipitate subjected to filtering, so that the nano-manganese oxide is obtained. The nano-manganese oxide prepared by using the preparation method disclosed by the invention can be applied to the field of super capacitors and wastewater treatment. According to the invention, through elaborate design, the industrial process is maximally simplified, the quality of products is improved, and the production cycle is shortened, therefore, the method disclosed by the invention is a nano-manganese oxide preparation method which is simple in technological process, small in energy consumption, short in reaction period, good and stable in product quality and low in cost.

The present invention belongs to the field of biological pesticide technology, and includes four aspects: 1. separation and identification of Acinetobacter baumannii strain LCH0606; 2. preparation and application in preventing and controlling plant diseases of Acinetobacter baumannii liquid; 3. preparation and disease preventing application of Bauman bacterin; and 4. effective component analysis of Bauman bacterin. Acinetobacter baumannii liquid and Bauman bacterin have main effective component of Iturin A, and possess broad bactericidal spectrum, less germ resistance, no harm to plant, safety to animal, environment friendship and other advantages. In addition, Acinetobacter baumannii liquid and Bauman bacterin have certain germination promoting effect on rice seed.

An adobe structure for electrolysis-type ozone generator and its preparing process are disclosed. Said anode structure is composed of the impervious air-tight compact anode plate and the catalyst particles layer which is freely spread in the space between said anode plate and anode frame. The gap between periphery of anode plate and the inner surface of anode frame is less than the least diameter of catalyst particles but can allow the raw water and generated gas to pass through it.

The invention provides a novel heat-resistant corrosion-resistant coating as well as a preparation and application method of the novel heat-resistant corrosion-resistant coating, wherein the novel heat-resistant corrosion-resistant coating comprises ethyl silicate, methyl triethoxysilane, triethylamine, ethyl alcohol, hydrochloric acid, o-cresol formaldehyde epoxy resin, dimethylbenzene, diatomite, silica, zinc oxide, zoelite powder, mica, a butyl cellosolve solvent and butyl alcohol. The novel heat-resistant corrosion-resistant coating is reasonable in components, the stability, the corrosion resistance and the heat resistance of a product are good, and the stability is high. The preparation method of the novel heat-resistant corrosion-resistant coating is simple and feasible in process, high in production efficiency and low in application cost, the operation is easy and simple to implement, the quality of a produced product is stable, and the popularization and application values are relatively high.

The invention discloses a method for preparing powdery electrolytic manganese dioxide (EMD). In the method, the powdery EMD is directly obtained from solution by improving the electrolytic process and controlling the electrolytic condition; and during electrolysis, a diaphragm electrolytic cell is adopted, a lead silver alloy plate or a titanium manganese alloy plate subjected to acid treatment is taken as an anode, and a graphite plate or a stainless steel plate is taken as a cathode. The method comprises the following steps of: preparing electrolyte with 0.1 to 10.0mol/L sulfuric acid and 0.4 to 1.2mol/L manganese sulfate, adding an active agent into the electrolyte, electrolyzing at the temperature of between 20 and 100 DEG C under the action of ultrasonic waves, and filtering to obtain the powdery EMD; and washing the powdery EMD for multiple times, adding a dispersing agent into solution when the powdery EMD is washed for the last time, and drying to obtain the powdery EMD. The method has the characteristics that: the process flow is simple, energy consumption and cost are low, product particles are uniform and have good appearance, and the like.

The invention relates to a refine method for caprolactam that takes process of neutralization reaction, pre-refining, concentrating and distilling, and impurity extracting to caprolactam to gain high purity caprolactam. The invention is simple technology, sharply decreases power consumption and operating density. It improves the quality of the product, and declines cost.

The invention discloses a calcium dobesilate capsule and a preparation method thereof. The calcium dobesilate capsule is prepared from calcium dobesilate, croscarmellose sodium, magnesium stearate and polyvinyl pyrrolidone, wherein every 1000 calcium dobesilate capsules contain 500g of calcium dobesilate, 20-50g of croscarmellose sodium and 2-6g of magnesium stearate. In addition, a traditional preparation method is improved in the invention, and the improved method comprises the following steps: on the basis of taking the croscarmellose sodium as a disintegrating agent and taking the magnesium stearate as a lubricating agent, adding a proper amount of the polyvinyl pyrrolidone to prepare a bonding agent; preparing the bonding agent and the calcium dobesilate as well as the croscarmellosesodium into granules by a multi-step granulation method; and spraying the ethanol solution of the magnesium stearate onto the surfaces of the granules to obtain calcium dobesilate capsules with stable quality, high dissolution rate and small content uniformity.

The invention provides a cement-based steel slag sand mending material used for mending buildings. Raw materials for the mending material comprise, by weight, 50 to 78% of steel slag sand with a particle size of no more than 4.75 mm and 22 to 50% of silicate cement. According to the invention, steel slag can be used to fully replace river sand, and the mending material prepared from the steel slag has better tensile bond strength than that of a mending material prepared from natural river sand. When a plurality of auxiliary materials are properly added, the mending material better presents the advantages of high bond strength, good flexibility, appropriate anti-compression and flexural strength, a low ratio of compressive strength to flexural strength, good wear resistance, good crack resistance, a small drying shrinkage value and good compatibility with a cement concrete material. According to the invention, the raw materials are widely available and cheap, and industrial waste, i.e., steel slag, is fully utilized; a product obtained after uniform mixing of the raw materials in proportion has stable quality and is simple to construct and operate on site; after mixed with water, the mending material provided by the invention has good workability and water retention performance and is nonhazardous, pollutionless, green, environment-friendly and energy saving mending mortar for buildings.

The invention discloses an adhesive containing modified PVC (polyvinyl chloride) resin for packaging materials. The adhesive comprises an A component and a B component. The adhesive disclosed by the invention has the advantages of reasonable formula design, easily avaliable raw materials, simple production process, easiness in matching with equipment, stable product quality and strong adhesion force, and can be used for improving the physical properties, medium resistance, storage stability and the like in comparison with a traditional adhesive; by adding plant ash after treatment, the damages of water molecules to the adhesive are effectively reduced, the water resistance of the adhesive is greatly improved, and the adhesive has great quick-drying property because the hydrophilicity of the adhesive is reduced; and by adding the modified PVC resin, the viscosity of the adhesive is increased, the flowability of colloid is improved and the adhesion performance of a product is further enhanced.

The invention discloses a thiocarbamate compound preparation method for preparation of a thiocarbamate flotation agent of sulfide ore. According to the preparation method, corresponding xanthate and amine are adopted as starting materials, water is adopted as a solvent, and a one-step method is adopted to synthesize the corresponding thiocarbamate compound. With the preparation method, the defect of the two-step reaction of the traditional method is overcome, the process is simplified, and a production operation environment is improved. The preparation method has characteristics of simpleness, easy operation, substantial synthesis process shortening, production efficiency improvement, and stable product quality, and provides a simple and feasible method for thiocarbamate flotation agent preparation.

The invention relates to a synthetic method for halofuginone and an intermediate of the halofuginone. The reaction formula is shown in the description, wherein R1 is one selected from the group consisting of methyl, ethyl, n-propyl, isopropyl and t-butyl; R2 is one selected from the group consisting of methyl and ethyl; and R3 is one selected from the group consisting of methoxyformyl, ethoxyformyl, tert-butoxyformyl, benzyloxyformyl, trichloroethoxyformyl and benzyl. The synthetic method provided by the invention has the advantages of a simple process, low costs, few by-products in the synthetic process, a simple purification process, no need of column chromatography purification, a high product yield, less impurities, high purity, and controllable product quality, easily meets ICH declaration requirements and can be used for industrial production of the halofuginone.

The invention discloses a method for extracting radix angelicae dahuricae volatile oil through a subcritical fluid technique. The method for preparing the radix angelicae dahuricae volatile oil through subcritical fluid is performed under an intermediate temperature condition, so that the active material of the medicine is not damaged; the problems of inactivation and metamorphism of the volatile oil caused by high temperature are solved; the reutilization of the solvent can be realized; the use ratio of the raw materials is increased; the energy consumption is reduced; the production period is shortened; the method is fit for industrial production.

The invention relates to a lipstick with natural plant oil as a raw material. The problem that existing lipsticks have poor quality, are not safe to use and will affect people's health can be effectively solved in the invention. The lipstick of the invention is prepared from the following raw materials (by weight): 26-30% of millet oil, 26-30% of lanolin, 12-16% of beeswax, 12-16% of Vaseline, 6-8% of hemp seed oil and 6-8% of ginseng polysaccharide. The lipstick is prepared by the following steps: heating lanolin, beeswax and vaseline by water bath at 68-70 DEG C, continuously stirring clockwise, melting, slowing adding millet oil, hemp seed oil and ginseng polysaccharide while stirring, fully and uniformly mixing, continuously heating until a flowing liquid is formed, pouring the liquidinto a hollow lipstick tube rapidly to avoid the liquid from being solidified during the pouring process, cooling at room temperature to obtain the lipstick. The invention has the following advantages: the compatibility of the raw materials are scientific and reasonable, and the raw materials are easily available; the preparation method is simple; the product has stable quality and obvious effects, is safe to use, and can effectively meet requirements of the market on high quality and high safety; a new way of lipstick production is explored, and the market is wide.

The invention discloses high-billet strength tungsten powder and a preparation method thereof. The preparation method comprises the step of reducing transition-state purple tungsten in a hydrogen atmosphere so as to obtain the high-billet strength tungsten powder. According to the method, the production cost is reduced while the tungsten powder with the billet strength larger than or equal to 3.5 MPa is stably prepared.

The invention discloses a packing material binder containing nano kieselguhr. The binder consists of two components A and B. The binder has the advantages of reasonable prescription design, available raw material, simple production processes, easy matching of equipments, stable product quality and strong binding power. Compared with the traditional binder, the physical property, the medium resistance property and the storage stability of the binder disclosed by the invention are improved. Through the addition of the processed plant ash, the damage of the binder caused by the water molecule is effectively reduced, so that the water resistance of the binder is greatly enhanced; the hydrophilic performance of the colloid is reduced, so that the binder has the characteristic of well and quickly drying; and through the addition of the modified PVC (Poly Vinyl Chloride) resin, the adhesiveness of the binder is increased, the mobility of the colloid is enhanced and the adhesive property of the product is further enhanced.