37results about How to "Good quality and performance" patented technology

The invention relates to a method for preparing alpha semi-hydrated gypsum from dihydrate gypsum. The method comprises the following steps: adding dihydrate gypsum and a crystal modifier into a mixed acid water solution containing sulfur acid and phosphoric acid to carry out crystal transformation, carrying out solid-liquid separation, returning a part of liquid phase into a crystal transformation tank for crystal transformation, and conveying another part of liquid phase to an acidolysis tank for use, wherein the acidolysis tank is used for preparing phosphoric acid by decomposing phosphorite by virtue of sulfuric acid; adding washing water to wash a solid phase, and introducing the washing water into the liquid phase for use. The washed solid phase can be prepared into alpha semi-hydrated gypsum powder through drying and can be prepared into gypsum products such as gypsum boards, gypsum blocks, gypsum components and the like by directly adding water without drying. According to the method, the alpha semi-hydrated gypsum is prepared in the mixed acid water solution containing sulfur acid and phosphoric acid, procedures including desulfuration, removal of impurity and the like on raw gypsum can be omitted, furthermore, mixed acid can be recycled, and the obtained alpha semi-hydrated gypsum product is high in strength and stable in quality.

The invention discloses a hardened and tempered steel plate production method. Chemical components of steel include, by mass, 0.08% to 0.24% of C, 0.20% to 0.50% of Si, 0.80% to 1.30% of Mn, smaller than or equal to 0.018% of P, smaller than or equal to 0.005% of S, smaller than or equal to 0.020% or smaller than or equal to 0.050% of Als, smaller than or equal to 0.25% of Cr, smaller than or equal to 0.08% of Mo, smaller than or equal to 0.25% of Cu, smaller than or equal to 0.25% of Ni, and the balance Fe and remaining elements. The method includes the following processing steps of converter smelting, refining, vacuum refining, casting, heating, rolling, slow cooling and thermal treatment. Through continuous casting blank production, the internal quality of blanks is guaranteed, the low-cost chemical components only with Nb, V and Ti alloy added are selected and used for design, the cleanliness of steel is guaranteed through an LF and VD process, and the sum of the levels of various impurities does not exceed 2.0; through rolling control and normalizing treatment, the grain size of the steel reaches more than 8.0; through the effective implementation of the technical measures, steel plates for a carbon-manganese-silicon pressure container and steel plates guaranteeing flaw detection, the mechanical performance and the plate shape for the carbon-manganese-silicon pressure container are successfully produced.

The invention provides a storage battery electrode plate curing chamber with automatic temperature control. The storage battery electrode plate curing chamber comprises a curing chamber body, a circulating fan and a steam warming box, wherein an air outlet of the circulating fan is connected with the steam warming box; a humidity controller, a circulating fan frequency changer and a circulating air temperature setter are arranged at one side of the curing chamber body; a plurality of drying exhaust holes are transversely and evenly formed in the top of the curing chamber body; a drain pipe is arranged at the bottom of the curing chamber body; a circulating air inlet pipeline is transversely arranged at the center part of the top in the curing chamber body; circulating air outlet pipelines are transversely arranged at two sides of the inner bottom in the curing chamber body; the air inlet of the circulating fan is connected with the circulating air inlet pipeline through a pipeline; a drying air inlet hole is also formed in the middle and upper part of the pipeline; the steam warming box is connected with the circulating air outlet pipelines; and steam pipelines which are connected with an external steam generation device of the curing chamber body are also arranged at two sides of the bottom of the curing chamber body. The storage battery electrode plate curing chamber has the beneficial effects that the upper part and the lower part of the curing chamber body are consistent in temperature; and the physical and chemical properties of the cured and dried electrode plate are stable.

The invention discloses alcohol ether replaced clean fuel material used for vehicles, which takes methanol, methylic tertiary butyl ether, ethanol, 190 <NUMBER> -200 <NUMBER> solvent naphtha and heat bodied oil as raw material, under the normal temperature and the normal pressure, sodium perchlorate and potassium permanganate are firstly mixed and prepared by the weight ratio of 1:2, and then filled up into the methanol to be modified, and methylic tertiary butyl ether, ethanol, 190 <NUMBER> -200 <NUMBER> solvent naphtha and heat bodied oil are added in sequence, at last, mixed benzene, light aromatics, methylethyl ketone, sulfurated alkyl phenicate, ialkyl dithiozinc phosphate salt, ethylene glycol monomethyl ether, phosphate ester and Beta- naphthylamine, alkenyl succinic acid and alkylphenol polyoxyethylene are added to prepare a kind of petrous energy source replaced liquid fuel material which resists low temperature, has good mutual solubility, is corrosion proof, has good dynamic performance, low energy consumption and obvious environmental protection effect.

The invention relates to a polyvinyl chloride plastic/rubber inking roller and a preparation method, comprising a metal roller core (1), a rubber layer (2) wrapping the metal roller core (1), and the outer surface of the rubber layer (2) is coated with PVC plastic layer (3). The invention overcomes the technical problems of rough surface of the existing inking roller, easy penetration of ink, uneven inking, difficult to clean, and easy cracking of the rubber surface. A polyvinyl chloride plastic/rubber inking roller whose rubber surface layer is not easy to crack and a preparation method thereof.

The invention discloses an automatic nanocrystalline metal composite material preparation furnace through reaction under protection of high temperature and high pressure gas. The preparation furnace comprises a double-ferrule gas inlet needle valve, an automatic decompression valve, a pressure gage, a pressure sensor, a first sealing flange, red copper seal rings, a high temperature alloy steel tube, a reaction sample boat, a second sealing flange, a vent valve, a heating furnace hearth and a metal plate furnace body, wherein two water cooling fixed mounts are symmetrically mounted on the twosides of the metal plate furnace body; the heating furnace hearth is arranged in the metal plate furnace body; the high temperature alloy steel tube penetrates through the metal plate furnace body andthe heating furnace hearth; the reaction sample boat is fixedly connected with the interior of the high temperature alloy steel tube; the two ends of the high temperature alloy steel tube are in sealing connection with the first sealing flange and the second sealing flange separately through the red copper seal rings; and the automatic decompression valve is fixedly connected with the bottom of the first sealing flange. According to the automatic nanocrystalline metal composite material preparation furnace through reaction under protection of high temperature and high pressure gas, nano material and metal material have high pressure synthesis reaction under the protection of high temperature and high pressure gas to obtain high-quality composite material.

The invention discloses foam glass prepared from waste high-aluminum alkali-free boron-free glass fiber. The foam glass comprises 90-96wt% of waste glass fiber, 0.5-5wt% of SiC, 0.5-5wt% of coke, 0.5-7.5wt% of Sb2O5, 0.5-7.5wt% of CeO2, 0.5-7.5wt% of Na2SO4 and 0.5-7.5wt% of Na2CO3, wherein the waste glass fiber contains not less than 12wt% of Al2O3; and the molar ratio of Na2O/Al2O3 in the composition of the foam glass is more than 1. The invention further discloses a manufacturing method of the foam glass. The foam glass disclosed by the invention has the advantages of low density, high compressive and flexural strength and excellent quality performance, and can not only effectively improve the comprehensive utilization of industrial wastes, but also reduce the manufacturing cost of the foam glass and the environmental harm caused by the foam glass. In addition, the preparation process disclosed by the invention has the advantages of simple process and low production cost, and is suitable for industrial production.

The invention which relates to a preparation method of a quasicrystal block belongs to the technical field of metal materials. The preparation method of the quasicrystal block is characterized in that: mixed quasicrystal powder or synthetic quasicrystal powder placed in a powder feeder is delivered to a laser melting pool by a powder delivery gas in a rapid laser shaping device, a quasicrystal or quasicrystal composite material coating is obtained after melting and cooling the mixed quasicrystal powder or the synthetic quasicrystal powder, a laser head is risen by the height of a coating, and the quasicrystal or quasicrystal composite material block is prepared through repeatedly coating. The preparation method of the invention, which has the advantages of simple technology, simple operation, feasibility, good mechanical performance, no restriction of the dimension of the block, excellent quality performance, wide application and the like, can satisfy the large scale application of materials like the quasicrystal block as a structural and functional device.

The invention discloses an indicating body construction of a traffic warning board. The indicating body construction comprises an indicating body and is characterized in that the indicating body is provided with a plurality of signboard pasting areas; LED luminescent lamp strips are arranged around the signboard pasting areas; and light condensation strips are arranged around the LED luminescent lamp strips. A protective cover is arranged outside the indicating body and is fixed to the indicating body through a screw. The light condensation strips are divided into connectors connected around the pasting areas and reflective faces obliquely arranged on the connectors. The indicating body construction has the beneficial effects that due to the fact that the indicating body of the traffic warning board is provided with the LED luminescent lamp strips and the light condensation strips are arranged around the LED luminescent lamp strips, signs on the warning board can be identified clearly more easily. The structure is simple, operation is convenient, and quality performance is excellent.

The invention discloses a copper strip production process. The copper strip production process specifically comprises the following steps of (1) smelting and continuous casting; (2) surface milling; (3) hot rolling; (4) annealing; (5) acid pickling and cleaning; (6) fine rolling; and (7) shearing, packaging and warehousing. The copper strip production process has the beneficial conditions that after a raw material smelting alloy material is added, the weight of the raw material is controlled and the heating temperature and the heating environment are controlled during hot rolling, the oxidation burning loss of a copper material in a heating furnace can be reduced to a large extent, the yield of a finished product is controlled, a series of quality problems caused by heating oxidation of the copper material are reduced, annealing parameters are controlled, deformation resistance is lowered, the plasticity is restored, and the quality performance of the finished copper strip product produced by a method is good.

A light emitting device includes a growth substrate, a light emitting component, a first conductive bump and a second conductive bump. The light emitting component is disposed on the growth substrate, including a first type semiconductor layer, a second type semiconductor layer, a light emitting layer, an ohmic contact layer, a first conductor layer, and a second conductor layer. The light emitting layer and the second type semiconductor layer are penetrated by a trench. The ohmic contact layer is disposed on the first type semiconductor layer and is disposed in the trench. The ohmic contact layer is electrically connected to the first type semiconductor layer. The first conductor layer is disposed on the first type semiconductor layer and is disposed in the trench. The first conductor layer covers the ohmic contact layer. The second conductor layer is disposed on the second type semiconductor layer, and is electrically connected to the second type semiconductor layer. A manufacturing method of the light emitting device is also provided.

The invention discloses a manufacturing method of a self-heat-preservation non-bearing wallboard. The manufacturing method comprises the following steps of ingredient stirring, mold box pouring, upper forming manufacturing, temperature control precuring, demolding and board discharging, and acceptance and warehousing. The manufacturing method solves the problem of instability of traditional foam, reduces the overall construction cost, and has obvious economic benefits; and a wall body is not easy to fall off, the adhesive force of the wall to decorative materials is improved, an inner wall can be decorated, the structural space self-heat-preservation performance is high, the weight is light, manufacturing is easy, materials and energy are saved, and the engineering cost can be greatly reduced.