986results about How to "Good quality and stability" patented technology

A gas-filling packaging method using a track type gas-filling packaging machine includes a bag placing step in which a number of packaging bags set in a magazine in a stacked state are turned up one by one by a sucker and picking up and then passing the bag to a bag chuck, a bag opening/inflating step of opening the bag mouth and inflating the bottom of the bag by suckers, a bag filling step of lowering a synchronous funnel to be inserted into the bag and applying a receiving member of a bottom tapping unit to the bag, so that the bag is filled with a predetermined amount of article while the bottom is tapped, a deaeration/temporarily sealing step of inserting a deaeration nozzle into the bag to remove air in the bag and holding the bag mouth by a temporary heater.

Provided is an earphone microphone capable of outputting sound with good quality and picking up clear sound. The earphone microphone includes a speaker, a microphone, a main body case, and a seal member. The seal member seals between the main body case and user's external acoustic meatus when the earphone microphone is inserted in the external acoustic meatus. The main body case is provided with an acoustic space in which the speaker and the microphone are disposed, and a first opening and a second opening which are communicated with the acoustic space. When the earphone microphone is inserted in the external acoustic meatus, the first opening is communicated with the external acoustic meatus while the second opening is communicated with outside of the main body case other than the external acoustic meatus.

The invention belongs to the field of sheet metal and welding processing, and relates to an integral forming method for a thin-walled titanium alloy part with an irregularly-shaped curved surface. The integral forming method aims at overcoming the defects that the shape of parts processed through the prior art is limited or the procedure and the cost are higher, and effectively ensuring the precision forming of a thin-walled component with an irregular shape. The integral forming method comprises the steps as follows: a parting surface is determined; blanking is carried out; in the preforming step, a plate is bent from a flat into a circular arc through a bending die or a bending machine; welding is carried out; in the hot shaping step, a hot shaping die is put in the inner part of a part that is processed through the assembly welding under the ordinary temperature, and the part is supported tightly due to the dead weight of the die and is heated in a hot shaping machine; and in addition, a pressing machine applies pressure to the hot shaping die when the part is heated until material is softened, so as to enable the part to reach the needed size. The integral forming method comprehensively utilizes the advantages of various processes, can obtain the large-sized thin-walled titanium alloy part with the irregularly-shaped curved surface through only two weld joints, and achieves higher surface quality of the part.

The present invention discloses a hollow hard capsule and its preparation method. It is made up by adopting prolanpolysaccharide as main body material and adding gelling agent, coagulant aids, surfactant and humectant through a certain preparation process. Said invention also provides the concrete steps of its preparation method.

The invention discloses an ink for ceramic ink-jet printing and a method for preparing the same, wherein the ink comprises the following components by mass percent: 20-50% of ceramic pigment, 3-8% of resin, 2-10% of dispersant, 0.1-0.2% of flatting agent, 0.3-0.7% of defoamer, 0.08-0.12% of anti-settling agent and the balance of solvent; and the dispersant is a high-molecular-weight polyurethane type dispersant or a high-molecular-weight polyacrylate type dispersant. The ink for ceramic ink-jet printing provided by the invention is good in quality stability and thereby can be stored for a long time; the ink is excellent in ink-jet printing performance, low in ink viscosity and even in particle size distribution; the viscosity of the ink is between 10.0 and 40.0 mPa.s and is controllable; and the surface tension of the ink is 28-38 mN/m, while the average particle size is 200-300 nm and the maximum particle size is less than 800 nm. The method for preparing the ink for ceramic ink-jet printing provided by the invention is simple and efficient; and a one-step mill base grinding process and an ink performance regulation process are carried out, so that the production cost is greatly saved.

The invention relates to an oral capsule preparation of oxiracetam and a preparation method thereof. The oxiracetam capsule contains 80.0-85.5% by weight of oxiracetam, 9.7-15.2% by weight of xylitol and 4.8% by weight of an emollient, wherein the oxiracetam is in a crystal form. The oxiracetam in the crystal form is a good crystal with excellent mobility. Compared with the crystal form provided in the prior art, the oxiracetam in the crystal form has higher purity, less impurity, better quality stabilizer and better crystal form stability. The quality stability of the disclosed oxiracetam capsule is improved remarkably, the preparation process is simple, and the production cost is lowered.

The invention discloses an aluminum alloy wheel gravity casting die and a casting method thereof. The aluminum alloy wheel gravity casting die comprises a cooling device, a top die, a side die, a bottom die and a die cavity formed by the top die, the side die and the bottom die; the bottom die is provided with a sprue spreader; the aluminum alloy wheel gravity casting die also comprises a heat insulation cup communicated with the die cavity and capable of storing molten aluminum, a pressing device capable of enabling the molten aluminum stored in the heat insulation cup to be continuously injected into the die cavity, and a plugging device capable of stopping the molten aluminum stored in the heat insulation cup from flowing into the die cavity under the action of gravity; the heat insulation cup is arranged on a rack of a gravity casting machine, and the plugging device is arranged on the bottom die or the rack of the gravity casting machine; and the casting method for the aluminum alloy wheel gravity casting die comprises molten aluminum injection, pressing, continuous casting, filling, feeding, crystallization and solidification. The cast aluminum alloy wheel has the advantages of a few dead heads, high weight and yield, and good quality stability.

Methods of making micro-fluid ejection head structures. One of the methods includes providing a substrate having a plurality fluid ejection actuators on a device surface thereof. The device surface of the substrate also has a thick film layer comprising at least one of fluid flow channels and fluid ejection chambers therein. A removable anti-reflective material is applied to at least one or more exposed portions of the device surface of the substrate. A nozzle layer is applied adjacent to the thick film layer. The nozzle layer is imaged to provide a plurality of nozzles in the nozzle layer, and the non-reflective material is removed from the exposed portions of the device surface of the substrate.

The present invention discloses a matte glaze ink for ceramic jet printing and preparation method thereof, wherein the ink comprises, based on the mass percentage, 30-50% of matte glaze, 3-8% of resin, 2-10% of dispersant, 0.1-0.2% of leveling agent, 0.3-0.6% of defoaming agent, 0.08-0.12% of anti-settling agent and the balance for the solvent, wherein the matte glaze includes raw materials of the following components of SiO2, Al2O3, K2O, Na2O, CaO, MgO, ZnO and BaO. Matte glaze ink prepared by the invention has low viscosity, uniform distribution of particle diameter with maximum particle diameter of less than 1Mum and good printing performance. Fired glaze owns gentle matte finish.

The invention relates to a foamed type TPU (thermoplastic polyurethane elastomer) material and a preparation method thereof. The preparation method comprises the following steps: polymer polyol, diisocyanate and a chain extender are taken and poured into a casting machine to be mixed uniformly, then a mixture I is added to a first reactive extrusion machine for a polymerization reaction, and a TPU polymer melt is obtained; a physical foaming agent is injected into the tail end of a screw of the first reactive extrusion machine, the TPU polymer melt is mixed preliminarily with the physical foaming agent, and a mixture II is obtained; the mixture II is added to a second reactive extrusion machine, and the physical foaming agent and the TPU polymer melt are mixed uniformly to form a homogeneous system; the homogeneous system passes through a neck ring mold of the second reactive extrusion machine and then is subjected to underwater palletizing, and foamed thermoplastic polyurethane particles are obtained; the foamed thermoplastic polyurethane particles are dehydrated and dried, and the foamed type TPU material is obtained. The foamed type TPU material has stable foaming density, the batch-to-batch product quality is stable, central control monitoring is performed at any time, and the yield is increased.

The present invention relates to material forming technology, and is especially mold and method for liquid state formation of aluminum hub disc for special vehicle. The mold includes a lower mold, a female mold casing, an upper mold, an inner male mold and an outer male mold. The corresponding forming process includes the steps of: making wear resistant reinforcing body, setting the reinforcing body inside the mold, pouring aluminum alloy liquid, and extruding. The mold has simple structure, the forming process is simple and high in efficiency, and the product has high performance.

The invention discloses a white glaze printing ink for ceramic ink-jet printing and preparation method thereof, wherein the printing ink comprises, based on the mass percentage, 30-60% of white ceramic glaze, 3-10% of dispersant, 2-8% of resin, 0.1-0.2% of leveling agent, 0.3-0.7% of antifoaming agent, 0.08-0.12% of anti-settling agent, and the balance for the solvent. Wherein the white glaze includes, based on the mass percentage, 40 - 55% of SiO2, 38 - 15% of Al2O, 4 - 8% of (K2O + Na2O), 6 - 10% of (CaO + MgO), 3 -8% of ZrSiO4, 6 - 10% of B2O3, 6- 8% of ZnO, and 9 - 12% of CeO2. The viscosity of the printing ink prepared by the invention is low, and the distribution of particle size is uniform, and the viscosity is between 10.0 - 30.0mPa.s and adjustable, and the surface tension is 28 - 35mN/m, and the average particle diameter is 200 -400nm, and the maximum particle size less than 900 nm. The ceramic white glaze printing ink prepared by the invention has advantages of good quality stability, long-time preservation, and good performance of ink-jet printing, and realizes the preparation of white glaze printing ink for ceramic jet-printing.

The invention discloses a metal and ceramic bonding agent and a preparation method of the metal and ceramic bonding agent, a CBN grinding wheel and a manufacturing method of the CBN grinding wheel. The metal and ceramic bonding agent is composed of, by mass fraction, 75%-92% of ceramic and 8%-25% of metal. The ceramic is composed of, by mass fraction, 40%-65% of SiO2, 8%-35% of B2O3, 6%-20% of Al2O3, 5%-18% of Na2O5, 0.5%-5% of CaO, 3%-10% K2O, 0.5%-2% of MgO and 2%-6% of TiO2. The metal is composed of, by mass fraction, 55%-80% of Cu, 15%-30% of Sn and 5%-20% of Ni. The metal and ceramic bonding agent can be used as a CBN grinding wheel bonding agent and overcomes the defects that in the grinding process of the ceramic CBN grinding wheel, the surface roughness of a workpiece is large, chatter marks are generated easily, and impact resistance is poor.

The invention discloses a polullan polysaccharide empty hard capsule and a preparation method thereof. The preparation method comprises the following steps: mainly adopting polullan polysaccharide, gel agent, plasticizer, emulsifying agent, latent solvent, water, and the like as raw materials; stirring and dissolving the raw materials in a heating-stirring tank which is vacuumized, heating to form glue, filtering, conveying glue solution into a capsule making machine for making a capsule and finally obtaining the polullan polysaccharide empty hard capsule. The empty hard capsule has the advantages of good quality stability, uneasy friability, stable breakdown index, difficult hydrolysis, no misty and yellowing appearance on the surface while in long-term deposition and can hold solids, oily liquid, semisolids and pasty materials; especially, as the water content of the capsule is lower than that of a gelatine capsule, the capsule is more suitable for being filled with moisture-absorption medicines and aldehydes-containing medicines and has wide market prospect and practical value.

The invention discloses an electric motor stator assembly machine. The assembly machine comprises a hydraulic machine tool, wherein a top plate is fixed on the nose of the hydraulic machine tool; the workbench of the hydraulic machine tool is provided with an L-shaped roll-over stand; the roll-over stand is provided with a bearing plate and a base backup plate; one side of the bearing plate and one side of the base backup plate are in right angular connection; the joint of the bearing plate and the base backup plate is rotatably connected with one side of the workbench; and a jacking device is connected below the bearing plate. According to the invention, an operator sleeves the stator assembly of the electric motor at the opening of a motor casing, and the stator assembly is pressed into the motor casing through the hydraulic machine tool when particular operation is carried out; and compared with the traditional manual operation, the labor intensity of the operator is greatly alleviated and the production efficiency is substantially improved. Meanwhile, as the stator assembly is pressed into the motor casing by the hydraulic machine tool, the stress of the stator assembly is uniform, and no impact is applied on the stator assembly, thereby ensuring that the assembling quality stability of the stator assembly is relative good.