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48 results about "Additional procedure" patented technology

Color reproduction process

A method of color printing is described in which only two transparent inks are used to reproduce a source image The original digitally encoded image in red, green and blue colors may be initially adjusted for contrast, brightness, color balance, and tonal value. This is then converted to cyan, magenta and yellow encoding. The two of these channels which best represent the dominant colors of original image are then selected. The critical colors of the original image to be reproduced with reasonable accuracy are determined and spot colors that best represent these are selected from an ink palette The spot colors are assigned to the selected channels to which they have the closest color relationship. These two channels are next superimposed to form a composite image and their greyscale values are adjusted to produce an image most closely resembling the desired final image. New positive separations are then made and inverted to negative images from which printing plates can be prepared. A third channel may be introduced approximating the color of a colored substrate before the final greyscale adjustment. This channel is not printed, however. An additional procedure useful with colored substrates is to prepare a masking channel which will deposit an opaque ink, usually white, to underlie the two transparent inks and further help control substrate color. Under this implementation, the third channel is printed. The method is capable of rendering very attractive color images on substrates such as the unbleached kraft paper used for corrugated shipping containers.
Owner:INT PAPER CO

Production method of paper pulp with waterproofness

The invention discloses a production method of paper pulp with waterproofness, and belongs to the technical field of paper pulp production. The method includes the following steps of raw material selection, extrusion, soaking, cooking sterilization, impurity removal, preparation of a paper pulp semi-finished product, preparation of a filament blank, preparation of ground paper, preparation of a paper pulp finished product, and waterproofness testing. According to the method, a new technology is adopted to make the waterproof paper pulp, it can be avoided that an additional procedure is needed in carton processing, a composite dampproof adhesive and YF-921 cationic starch are added directly in the paper pulp processing process to form the waterproof paper pulp, the outward processing of waterproof layer coating is not needed in the midway of the carton manufacturing process, the procedures are simplified, and the cost is reduced; according to the paper pulp produced through the method, the outward processing of waterproof layer coating is not needed, it is only needed to make the waterproof paper pulp with the needed model and specification, and corresponding waterproof cartons can be made as needed; the waterproof capability of the paper pulp is effectively improved.
Owner:中山市天鹏包装制品有限公司

Process for manufacturing series of intermediate-voltage N-type vertical conduction double-diffused metal oxide semiconductor transistors by using composite epitaxy

The invention discloses a process for manufacturing series of intermediate-voltage N-type vertical conduction double-diffused metal oxide semiconductor (VDMOS) transistors by using composite epitaxy. The process comprises the steps of: batch feeding, first-step epitaxy, second-step epitaxy, third-step epitaxy, fourth-step epitaxy, field oxidation, etching of an active area, high-concentration boron injection and junction depth increasing, phosphorus injection and junction depth increasing, gate oxidation, polycrystalline silicon gate deposition and doping, PWELL boron injection and junction depth increasing, source N+ arsenic injection and junction depth increasing, contact hole etching, aluminum evaporation and corrosion, back thinning evaporation and the like. By a process platform, any additional procedure and operation is avoided, and on-resistance can be lowered by 10 percent on the basis of ensuring withstand voltage; by the VDMOS transistor manufactured by the process, a high-current intense-electric field effect can be effectively suppressed, and the safety working area of a device is enlarged to a certain extent; and the on-resistance is lowered, so that power consumption is greatly reduced, energy sources are saved, and the reliability of a circuit is greatly improved.
Owner:WUXI CRYSTAL SOURCE MICROELECTRONICS CO LTD

Staggered-distance extrusion forming device and method for bending component

ActiveCN107649529AAdjustable curvatureBreaking through a single shape featureExtrusion diesRelative displacementAdditional procedure
The invention discloses a staggered-distance extrusion forming device and method for a bending component, and relates to a extrusion forming device and method for the bending component. The device andthe method aim to solve a series of problems that in a traditional bending component manufacturing process, the number of required procedures is large, the flexibility of the component is poor, the production efficiency is low, and quality control is difficult to achieve. According to the method, a conventional integral punch for extruding is divided into two or more than two split structures; the split punches are arranged in a staggered manner according to a certain relative displacement amount and fixed; then integral loading forming of blanks is carried out; and the curvature change of the bending component subjected to extrusion forming can be regulated. The single shape feature that conventional extrusion products are mostly long straight lines is broken through, the variety range of the products capable of being formed is enriched, and the application field also tends to be diversified. According to the method, the double effects that extruding and bend and forming are integrated are achieved in a single-pass extrusion technology process, additional procedures are not needed, the required bending component can be machined at one time, the machining process is shortened, theproduction efficiency is improved, and the manufacturing cost is reduced. The staggered-distance extrusion forming device and method for the bending component is used for extrusion and machining forming of the bending component.
Owner:福建祥鑫股份有限公司

Short process extrusion forming device and method for high-performance metal plate

The invention discloses a short process extrusion forming device and method for a high-performance metal plate and relates to an efficient extrusion forming device and method for a metal plate. The series of problems that energy consumption needed by an existing metal plate extrusion forming method is large, the number of procedures is large, the material utilization rate is low, the technologicalflexibility is poor, and quality performance coordination control is difficult can be solved. According to the efficient extrusion forming device, an antiskid structure 2-1 is designed at the end ofa male die 2; a sleeve 3 and a flange 7 are connected with each other through a thread 3-1; and the shape and thickness of the extrusion plate are adjusted and controlled through an annular limiting block 9 or a split limiting block 10 and adjustment of the height h. According to the efficient extrusion forming method, after a blank 4 is put into the sleeve 3, a torsion mechanism 1 drives the maledie 2 to go downwards for loading, and the blank 4 sequentially flows into a bottom cavity till complete extrusion is achieved. According to the efficient extrusion forming method, a fine grain modification effect of strong plastic deformation technology can be achieved without additional procedures, and plate products of different specifications can be customized. The efficient extrusion formingdevice and method are suitable for extrusion forming of high-performance metal plate products.
Owner:福建祥鑫股份有限公司
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