33results about How to "Avoid lowering production costs" patented technology

The invention provides a zoledronic acid composition for injection. The zoledronic acid composition for injection is prepared by the following steps of: 1) preparing medicinal liquid, namely selecting zoledronic acid and trisodium citrate as raw materials according to the weight ratio of the zoledronic acid to the trisodium citrate of 1:0.5-2, weighing a proper amount of the raw materials and placing the raw materials into a preparation tank, adding water for injection until the weight of the solution is 250 to 1,250 times that of the zoledronic acid, stirring the solution to dissolve the raw materials and mixing the raw materials uniformly and adjusting the pH value of the solution to be 4.0 to 6.0; 2) performing active carbon finishing; 3) performing adsorption; 4) performing aseptic filtration and subpackaging; and 5) performing vacuum freeze drying to obtain the zoledronic acid composition for injection. By the zoledronic acid composition for injection and the preparation method thereof, for injection of which the clarity is influenced by active carbon greatly, such as the zoledronic acid and the like, the heat source, the clarity and insoluble particles of the product can meet the requirements of the injection.

The invention relates to a laser carving method. The method comprises the following steps that S100, base materials are provided and machined to form an intermediate product; S200, a laser carving face and a machining face are determined, the machining face is opposite to the laser carving face, a laser carving area located on the laser carving face is determined, a machining area located on the machining face is determined, and the machining area corresponds to the laser carving area; S300, machining is carried out on the machining face so that the machining area can be concaved to a certaindepth; and S400, laser carving is carried out on the laser carving area on the laser carving face. After a middle frame is subjected to laser carving, the follow-up working procedure of assembling a display screen is not affected; when laser carving is carried out on the middle frame with a plastic injection molding function, the problem that the waterproof performance of the middle frame is lowered since the aluminum-plastic joint is cracked during planar shaping is avoided, the yield is improved, the production cost is greatly reduced, and an obvious significance is achieved in practical production. In addition, the shaping working procedure is not needed, and the time cost and the machining cost are saved.

A packaging structure without external pins comprises a wire rack, a chip, and a packaging colloid. The wire rack comprises a chip seat and a plurality of pins. The pin seat has a top surface and a bottom surface, and the chip seat comprises a chip jointing portion and a periphery portion. The periphery portion connects and encircles the chip jointing portion. The top surface of the chip seat outside the chip jointing portion is depressed to form the periphery portion. The pins are configured around the chip seat and are electrically separated from the chip seat. Each pin has a top surface and a bottom surface, and each pin comprises a cantilever portion and an external connection portion. Bottom surface of the pins outside the external connection portion are depressed to form the cantilever portions. The cantilever portion extends above the periphery portion from the external connection portion and partially overlaps with the periphery portion. The chip is configured on the chip jointing portion and electrically connected to the cantilever portion through a plurality of bonding wires. And the packaging colloid covers the chip, the bonding wires, and the wire rack.

The invention relates to a convenient eyeglass structure, which comprises eyeglass bracket and eyeglass lenses (1), wherein the eyeglass frame includes eyeglass legs (2) and an eyeglass frame (3), theeyeglass lenses (1) are installed in the eyeglass frame (3), and the eyeglass legs (2) are connected with the eyeglass frame (3). The convenient eyeglass structure is characterized in that the eyeglass legs (2) are elastic eyeglass legs and composed of an elastic beam (21) and a packaging layer (22), the elastic beam (21) is provided with an insertion slot (4) at the end connected with the eyeglass frame (3), and the elastic beam (21) is wrapped in the packaging layer (22) except for the insertion slot (4); and two ends of the eyeglass frame (3) are respectively provided with connecting arms(5), the connecting arm (5) is provided with an elastic buckle (51), the eyeglass leg (2) is fixed on the eyeglass frame (3) through the cooperation of the insertion slot (4) and the elastic buckle (51). The eyeglass structure of the invention has the advantage of convenient and fast installation, thereby avoiding the use of screws, and reducing the production cost.

The invention relates to a combined white cement combustion bleaching system, which comprises a combustor (1), a high-temperature heat exchanger (4), a primary air pipe (5), a pre-dedusting device (6), a high-temperature fan (7), a grate cooler (8), a low-temperature heat exchanger (9) and a dust collector (10), wherein an ignition oil gun channel (1-18), a center air channel (1-17), a coal supply air channel (1-16), a rotational flow air channel (1-15), an axial flow air channel (1-14) and a cold water channel (1-12) are formed in the left end of the combustor (1) in the axial direction. According to the invention, hot steam can be prevented from flowing into the rotary kiln to reduce the temperature of flame in the kiln, so that free calcium in clinker is prevented from exceeding the standard so as to effectively guarantee the quality of the clinker; and the temperature difference between the primary air and the rotary kiln (2) is reduced, so that the flame temperature in the rotary kiln is further prevented from being reduced, and further the increase of firing heat consumption is effectively avoided so as to greatly reduce the production cost.

The invention relates to a method for preparing sintered ores by adding chromite into low-chromium vanadium titano-magnetite. The method is characterized in that the low-chromium vanadium titano-magnetite, the chromite and other sintered materials are subjected to the following steps of material mixing, material stewing, material mixing, material pelleting, material distribution, ignition, sintering, crushing and sieving to obtain the low-chromium vanadium-titanium sintered ores. According to the method, the problem that material mixing is not uniform is effectively avoided, air permeability and the sintering rate of the sintered materials in the sintering process are effectively improved, the problem that the sintering rate is reduced due to the fact that ball materials with relatively large particle sizes are not completely burnt is also avoided, production cost is effectively reduced, energy is saved, the sintering speed is further improved, and the yield is high; the sintered oresprepared by the method has good air permeability in a soft melting and dripping zone, the performance of the molten drops is good, the yield is high, the metallurgical performance is good, and compared with the prior art, the recovery rate of Fe and Cr is greatly improved; and the method has the advantages that a theoretical basis and a technical foundation are provided for reasonably utilizing the method for preparing the sintered ores by adding the chromite into the Hong Ge low-chromium vanadium titano-magnetite.