82results about How to "No material waste" patented technology

A method for formation of shaped components such as shaped absorbent cores, for disposable absorbent articles, contemplates that a relatively wide web of material be provided from which the components are cut. The web of material is longitudinally slit to form a plurality of subdivided webs each having shaped components arranged in serial relationship. The shaped components of adjacent ones of the subdivided webs are nested with each other, that is, a line extending longitudinally of the web extends through the components of adjacent subdivided webs. Efficient formation is facilitated by collecting the marginal portions of the web of material, and at least partially recycling the collected portions for formation of the wide web.

The invention discloses a positioning and reinforcing system and method for an assembly type building cast-in-place connection layer reserved reinforcing steel bar. The system comprises an axial positioning and detecting device and an anti-deflection reinforcing device. The axial positioning and detecting device is used for detecting and positioning the reserved reinforcing steel bar before casting, and the anti-deflection reinforcing device is used for reinforcing the positioned reserved reinforcing steel bar and preventing the reserved reinforcing steel bar from deflecting and inclining in the casting process. Positioning precision of the reserved reinforcing steel bar and non-deflection during concrete casting are guaranteed, cyclic and repeated use can be achieved, energy conservation and environmental protection are achieved, materials are not wasted, connection modes are all physical connection, operation is easy and quick, subsequent installation of a pre-cast shear wall is benefited, time for hoisting the wall in place is shortened, installation precision of the wall is improved, the installation quality is guaranteed, the construction cost is effectively reduced, and the construction period is shortened.

In a support structure supporting a shaft of a helical gear, a shaft of a speed increase for a wind power generator with a helical gear, or a vertical shaft by a double row rolling element, the double row rolling bearing is so formed that load capacities on the bearing in the right and left rows are different from each other so that the load capacity on the bearing in the row where the rolling bearing receives a large axial load can be increased.

The invention discloses an acid fracturing liquid continuous blending supply device which comprises a clear water input unit, a first blending unit, a whole blending unit and a liquid sending unit. The clear water input unit is used for feeding clear water in a quantifying mode at a constant speed. The first blending unit is connected with the clear water input unit and is used for blending thickening agents and clear water from the clear water input unit, so that a thickening agent pre-blending solution is obtained. The whole blending unit is connected with the first blending unit and is used for blending the thickening agent pre-blending solution, acid liquid and various liquid additives, so that acid fracturing liquid is obtained. The liquid sending unit is connected with the whole blending unit and is used for discharging the acid fracturing liquid from the whole blending unit. According to the blending device, continuous blending supply of water, acid liquid, dry powder or pasty fluid and various liquid additives can be achieved, blending effect is good, blending is even, acid liquid quality is high, in addition, a large amount of manual cost is reduced through a continuous automatic acid preparing device, the requirement for an acid storage tank is lowered, construction liquid is saved, and equipment cost is saved.

The invention relates to a quick connector for cables. The quick connector for the cables comprises a sleeve with a conical through hole, wherein a first spring and a cable clamp are arranged in the conical through hole in sequence from the large-diameter end to the small-diameter end, the first end of the first spring abuts against the wall of the large-diameter end of the conical through hole, the second end of the first spring abuts against the first end of the cable clamp, the cable clamp comprises at least two clamping jaws, grooves extending in the axial direction of the conical through hole are formed in the inner sides of the clamping jaws, an ejector sleeve is further arranged in the sleeve, the first end of the ejector sleeve is located at the small-diameter end of the conical through hole and abuts against the second end of the cable clamp, and the second end of the ejector sleeve stretches out of the conical through hole. The quick connector for the cables has the connecting function of a traditional quick connector and has the advantages that the cables can be released conveniently, both time and labor are saved, energy is saved, environmental friendliness is achieved, connecting reliability and connecting stability can be guaranteed due to the adoption of the structure, and the quick connector is convenient to use and practical.

An electric current sensor having a housing, magnetic circuit with a magnetic core, and a magnetic field detector with a detection cell, positioned in an air gap between ends of the core. The core is made of a non-laminated magnetic material, and the magnetic circuit has a strap made of non-magnetic material welded to the core at each side of the air gap. The magnetic field detector has a support plate on which the detection cell is mounted. The plate has a recess, opposition the detection cell, which houses one end of the magnetic circuit.

A side gusseted poly bag with a filling valve and its method of manufacture including a tubular body with opposed side gussets defining front and rear panels, and a filling valve formed by folding the front and rear panels with the interconnecting gusset portion at one corner of the bag inwardly into the bag forming a filling panel, and simultaneously heat sealing the top edges of the front and rear panels with the top edges of the filling panel forming a filling tube and valve that closes itself under the force of material as it rises in the bag.

The invention relates to a processing method for removing burrs from a flexible printed circuit board region of a rigid-flexible printed circuit board. The processing method comprises the following steps of expanding along the two sides of a flexible printed circuit board in a non-linking position in a flexible region to a waste material region for a certain dimension, and feeding by adopting a shaping milling cutter; and after uncovering, adopting laser cutting along the outline of the flexible printed circuit board in the non-linking position in the flexible region to remove an outward-expansion part. According to the processing method, the step of expanding along the two sides of the flexible printed circuit board in the non-linking position of the flexible region to the waste material region for a certain dimension is performed by the shaping milling cutter in advance; then uncovering is carried out, and by adopting laser cutting, the outward-expansion part is removed along the outline of the flexible printed circuit board in the non-linking position in the flexible region, so that manual repairing is not required; the high precision of the outline precision of the flexible printed circuit board is maintained; the problem of burrs on the two sides of the flexible printed circuit board in the flexible region is solved; and effects of low cost and no waste of material are achieved.

The invention relates to a construction method of a water supply pipeline. The construction method comprises the following steps of 1, setting out and line inspecting; 2, trench excavation; 3, pipeline mounting; 4, carrying out a pipeline experiment and a leakproofness experiment; 5, pipeline backfilling; and 6, inspection well periphery backfilling. The construction method has the beneficial effects that the experiment period of a water supply pipeline pressure test can be effectively shortened, and the cost of the test can be effectively reduced.

There is provided with a method for manufacturing an isoxazole derivative at a high yield and without discharging waste products, and a novel isoxazole derivative. An isoxazole derivative expressed by Formula (8) is produced by reacting a 1-alkyne compound expressed by Formula (7) with iron(III) nitrate in the presence of acetone or acetophenone:

• • (where R₁ is an alkyl, cycloalkyl, phenyl, or other such group); and

(where R₂ is a methyl or a phenyl).

A tire component is fabricated by the steps of forming a narrow belt by arranging a plurality of cords and embedding the cords in a rubber layer, cutting the belt into strips of a predetermined length, and successively arranging and joining a necessary number of the strips such that edge parts of adjacent strips overlap each other with the outermost cord in the edge part of one of the adjacent strips overlying the outermost cord in the edge part of the other strip. The strips can be surely joined without requiring advanced techniques, without wasting materials and without increasing weight. Thus a desired annular tire component can be accurately formed in a desired circumference. The cords are arranged in each strip in a width equal to a length shorter than a length equal to an integral division of the predetermined circumference of a tire by a length corresponding to an increase in the diameter of the tire component. A tire component of a predetermined circumference can be accurately formed by increasing the diameter of an annular ply fabricated by successively joining an integral number of the strips such that the edge parts of the adjacent strips overlap each other with the outermost cord in the edge part of one of the adjacent strips superposed on the outermost cord in the edge part of the other strip. A pneumatic tire including the thus formed carcass ply thus fabricated has an improved quality.

A culture medium for low-cost pleurotus eryngii comprises the following ingredients by weight percent: 70-75% of wheat straw, 10-15% of cotton seed, 5-10% of soybean powder, 0.3-0.5% of glucose, 0.5-1% of quick lime, 1-2% of hydrated lime, 0.1-0.2% calcium superphosphate and 0.1-0.2% of magnesium sulphate; the wheat straw is soaked in water in a fermentation pool for more than 20 days, and is then dried properly to have a water content of 25-35%; the total water content of the culture medium is 70-75%; the wheat straw, the cotton seed and the soybean powder are mixed according to respective ratio, and the rest of nutrition ingredients are scattered on the upper surface of or in the upper layer of the culture medium; the culture medium is tightly compressed, and the void ratio is lower than 10%. The culture medium adopts low-cost and reachable materials, the nutrition ingredients can satisfy the requirement for the growing of the pleurotus eryngii, and can facilitate the domestic manufacturing of pleurotus eryngii by a peasant.

The invention relates to a method for seedling raising of Fritillaria, which comprises the following steps: (1) the humus-containing loam soil or sand is selected as the nursery land of Chlamydomonas subspecies; (2) the land of the control tiger are strewed by Pesticide 1- 2kg; (3) 15- 20 days later, the land is made to the ridge, the base fertilizer are spread on the ridge, and then soil, cover the base fertilizer, level the land, and finally cover with 1cm- 1.5cm mountain (5) to keep the soil moist, until spring emergence, cover density of 50 after emergence- 60 sun-shade net.(4) the pretreatment of seeds are sprinkled on the ridge, the seeds are covered with shrimp, pine and cooked soil; 60 shade net; (6) Miao long 3cm after every 20-25 days fertilizer once, fertilizer in accordance with the 300kg per mu, according to the amount of 5kg per acre, 45-60 days spraying foliar fertilizer once. The seedling rate of the seedling is less than 4%, and the rate of insects is less than 1.5%, and the germination rate is 90.2%.The incidence rate is less than 3.5%, the seedling rate is 93.4% , bulb weight to 1.5g, much higher than the existing nursery method.

The invention discloses a continuous mixing supply method for acid fracturing fluid. The method includes the following steps of mixing: feeding a thickener premixed solution, acid fluid and various fluid additives into an integral mixing system for solution mixing so as to obtain the uniformly-mixed acid fracturing fluid, and solution distribution: supplying and discharging the acid fracturing fluid obtained in the mixing step. By the mixing method, continuous mixing supply of water, the acid fluid, dry powder or pasty fluid and the various fluid additives can be realized, mixing effect is good, mixing is uniform, and quality of the fracturing fluid is high; in addition, by realization of a continuous automatic acid preparing process, a large amount of labor cost is reduced, the requirement on a fluid storage tank is lowered, construction fluid is saved, and equipment cost is saved.

A spray head belongs to the field of mechanical spraying to solve the problems that raw materials are wasted, the spraying is not uniform, the thicknesses of the sprayed products are uneven and the like in the spraying process by the spray head. Two or more rows of holes (2) as thin as hairs are formed at one end of the square or round spray head (1). The spray head is applicable to paint spraying and other surface spraying industries.

The invention belongs to the field of steel metallurgy technology and resource recycling, and relates to a dephosphorizing agent for low-silicon molten iron steelmaking and a preparation method and using method of the dephosphorizing agent. Magnesium reducing slag, lime particles and scale are mixed according to the mass ratio being (0.5-3):(1-2):(0.5-3), fully and uniformly mixed by a ball mill, added with a binder, and pressed by a ball press to obtain the dephosphorizing agent with the particle size being 1-60mm, and the dephosphorizing agent comprises, by mass, 25%-75% of CaO, 15%-65% of Fe2O3, 5%-25 % of SiO2, 1%-8% of MgO and 0.3%-3% of Al2O3. The proportion of the magnesium reducing slag is adjusted according to the silicon content of the molten iron in the preparation process, so that a multi-element dephosphorization slag system with low melting point and high fluidity can be formed. Recycling application of magnesium reduction slag can be achieved, the problems of difficult slagging, high slag melting point, likely gun sticking and the like of low-silicon molten iron steel making can be solved, the dephosphorization slagging speed is increased by 10% or more, and the dephosphorization rate is increased by 5% or more.