42 results about "Season cracking" patented technology

Provided is a Cu-Zn alloy which has a high Zn content, can be cold-worked, and has high strength and superior season cracking resistance. A cold-worked Cu-Zn alloy containing at least 10% Zn is subjected to at least one treatment selected among shot peening, shot blasting, sand blasting, and steel ball shot blasting; thus, the tensile residual stress on the surface of the alloy is reduced or brought into the state of compressive residual stress. The Cu-Zn alloy has a composition expressed by the general formula: CuaZnbXc (wherein X is at least one element selected among Al, Si, Sn, and Mn; and, by mass%, a is the balance, 10 C22C 9/04 C22F 1/08 2 10 1 2003/12/9 1542150 2004/11/3 1250757 2006/4/12 2006/4/12 2006/4/12 YKK Corp. Japan Koizumi Takuya Yoshimura Taiji Kita Kazuhiko he tengyun 11038 The Patent Agency of the Chinese Council for the Promotion of International Trade (CCPIT) No.1 Waidajie, Fuxingmen, Beijing 100086 Japan 2003/5/1 126292/2003

The invention is a seamless anti-seeping stable expansion soil excavation dyke slope construction method, a seamless anti-seeping stable expansion soil excavation dyke slope design method used for expansion soil channel slopes and terraces in hydraulic and road engineering, especially a design directly applied to the filed of hydraulic engineering in expansion soil regions, and its construction method comprises: A. verifying and determining expansion potential and buried depth and thickness of expansion soil in a region; B. selecting slip casting pressure and adopting runny grout or cement coal ash grout for cleavage grouting at 0.3MPa-1.0Mpa; C. after the grout or cement coal ash grout in the expansion soil concretes, excavating according to the designed slope; and D. making seamless anti-seeping protective layer construction. And the modified expansion soil compact structure is stable and unable to season crack, and the compact layer has very small seepage coefficient, achieving the anti-seeping purpose and meeting the anti-seeping requirement, and having an efficacy of treating both principal and secondary aspects.

The invention discloses a collection unearthed historical site relic in-situ environment water supplement protection system and water supplement method. The collection unearthed historical site relic in-situ environment water supplement protection system is composed of a water purification device, a water temperature regulation and control device and a water supplement tail end device. The water purification device is utilized for conducting purification treatments such as filtration, algae removal and sterilization on urban water supply. According to signals fed back by a temperature sensor buried in soil, the water temperature regulation and control device is utilized for regulating and controlling the temperature of supplemented water so as to ensure that the temperature of the supplemented water is consistent with the temperature of the soil environment of a historical site. A soil water content sensor, a soil temperature sensor, a flow control valve and the water supplement tail end device composed of macromolecule water-absorbent resin are utilized for conducting slow permeation and water supplement on the historical site and the soil environment of the historical site so as to supplement water loss slowly evaporated by the unearthed relic and to maintain the wet in-situ environment formed before the relic is unearthed, and therefore seasoning crack damage, caused by water loss, to the historic site relic is avoided, and the unearthed historical site relic can be stored for a long time.

The invention discloses a water pipe automatic storage device and relates to the field of agricultural equipment. According to the technical scheme, the water pipe automatic storage device comprises apipe storing mechanism arranged on a vehicle body; the pipe storing mechanism comprises a pipe winding mechanism and a pipe pulling mechanism arranged on one side of the pipe winding mechanism and used for pulling a water pipe; the pipe winding mechanism comprises a base and a pipe shaft, and the pipe shaft is inserted in the base; a driving mechanism is arranged at the end, close to the base, ofthe pipe shaft; and the pipe pulling mechanism comprises an inlet and an outlet, and air heaters are arranged on the two sides of the inlet. The water pipe automatic storage device has the beneficialeffects that by arranging the air heaters, softening of the water pipe in winter is facilitated, so that when the water pipe is subjected to winding storage, season crack of the wound water pipe dueto the fact the temperature is excessively low and consequently the water pipe is hardened is reduced; unique extrusion discs serve as the pulling device of the water pipe, thus pulling of the water pipe with elasticity is ensured, and the water pipe is further not liable to be damaged; and sundried on a water pipe body can be effectively cleared away by a cleaning cylinder, and then through rotating of the pipe shaft and up-down moving of a pipe arranging device on two-way lead screws, the purpose of automatically storing the water pipe is achieved.

The present invention provides a piercer plug material for producing a seamless steel tube, the piercer plug being a plug for a seamless steel tube produced by means of the Mannesmann process, and exhibiting excellent season cracking resistance and machinability. The piercer plug material contains, in mass%, 0.08 to 0.3% of C, 0.1 to 1.0% of Si, 0.2 to 1.5% of Mn, 0.2 to 2.0% of Ni, and a total of 1.5 to 8% of W and/or Mo, the remainder being Fe and impurities, wherein the amount of diffusible hydrogen contained as impurities is restricted to 2 ppm or less. The piercer plug material has a hardness between HRC 6 and 40, inclusive.

Provided is an Ni-reduced austenite stainless steel having excellent recyclability with no problem of producibility depression to be caused by the surface property thereof and having good workability, season cracking resistance, corrosion resistance and stress corrosion cracking resistance in point of the material characteristics thereof. The steel comprises C in an amount of more than 0.05% (by mass) and within a range of from 0.15 to 0.3% as (C+N), Si in an amount of at most 1%, Mn in an amount of from 0.5 to 2.5%, Ni in an amount of from 3 to 6%, Cr in an amount of from more than 16 to 25% and Cu in an amount of from 0.8 to 4%, and has Md30 of the following formula (1) of from −50 to 10 and SFE of the following formula (2) of at least 5:

Md30=551−462(C+N)−9.2Si−8.1Mn−29(Ni+Cu)−13.7Cr   (1),

SFE=2.2Ni+6Cu−1.1Cr−13Si−1.2Mn+32   (2).

The invention discloses a method for establishing a rock-mass two-dimensional microcosmic season cracking power function type model. The model comprises a rock-mass microcosmic particle bond stress two-dimensional mode considering a bending moment contribution factor, a microcosmic particle bond ageing degradation degenerative two-dimensional power function type mode considering a bending moment contribution factor, a mohr-coulomb microcosmic particle season cracking criterion considering a bending moment contribution effect and provided with a stretching stop limit and a microcosmic particle linear contact two-dimensional model considering a damp effect. The method adapts to a rock mass having the stress and crack propagation velocity relation meeting the power function type and provides technical support for long-term stability prediction, evaluation and optimization design of similar deep rock mass projects in a plane state.

The invention relates to the field of processing of artware, and in particular relates to a processing technique of a peach kernel bracelet. The processing technique of the peach kernel bracelet has the advantages that the contact area of a peach kernel and air is reduced by polishing during processing, and thus the property of peach kernel is unlikely to change, and the peach kernel is not easy to suffer from seasoning crack and graying; in addition, by adopting the polishing, wanting edges and burrs on the surface of the peach kernel can be effectively removed and the surface of the peach kernel can be smooth, so that the skin can be prevented from being scratched by the peach kernel during wearing; the peach kernel is dried in the air, and therefore, the water loss which leads to graying can be avoided during the drying of the peach kernel, and the nice appearance of the peach kernel is ensured.

The invention discloses a rock mass two-dimensional microscomic season cracking power function type model. The power function type model comprises a rock mass microscomic particle bonding stress two-dimensional mode considering a bending moment contribution factor, a two-dimensional power function type mode, considering the bending moment contribution factor, of microscomic particle bonding season deterioration attenuation, a Mohr-Coulomb microscomic particle bonding season cracking criterion considering a bending moment contribution effect and having a stretch cutoff limit, and a microscomic particle linear contact two-dimensional model considering a damping effect. The model is suitable for rock masses with a characteristic that the relationship between the stress and the crack propagation speed accords with the power function type, and provides technical support for long-term stability prediction, evaluation and optimization design of surrounding rocks of deep rock mass engineering in a plane state.

The invention discloses a high-temperature-resistant coating material composition for a transformer and a preparation method of a high-temperature-resistant coating. The composition is prepared from organic silicon rubber, hydroxyethyl cellulose, talcum powder, aluminum oxide, magnesium oxide, calcium stearate, graphite, xylene and n-butyl alcohol, wherein relative to 100 weight parts of the organic silicon rubber, the content of the hydroxyethyl cellulose is 10-50 weight parts, the content of the talcum powder is 10-40 weight parts, the content of the aluminum oxide is 5-20 weight parts, the content of the magnesium oxide is 5-20 weight parts, the content of the calcium stearate is 10-30 weight parts, the content of the graphite is 10-20 weight parts, the content of the xylene is 20-50 weight parts, and the content of the n-butyl alcohol is 10-30 weight parts. By the adoption of the design, effective high temperature resistance is achieved, seasoning cracks and other problems will not appear even in a high temperature environment, and production efficiency is greatly improved.

The invention discloses a two-dimensional season cracking model considering a bending moment contribution factor. The two-dimensional season cracking model comprises a rock meso-level particle parallel bond stress two-dimensional mode considering the bending moment contribution factor, a meso-level particle parallel bond season cracking deterioration attenuation two-dimensional exponential mode considering the bending moment contribution factor, a Mohr-Coulomb meso-level particle parallel bond season cracking criterion considering the bending moment contribution effect and with a tensile cut-off limit, and a meso-level particle linear contact two-dimensional model considering a damping effect. The season cracking model disclosed by the invention is applicable to two-dimensional granular discrete elements, two-dimensional granular discontinuous deformation analysis methods and two-dimensional granular manifold methods, and is capable of providing a technical support for long-term stability prediction, evaluation and optimization design of surrounding rock in deep rock mass engineering in a planar state.

The invention relates to an environmentally-friendly wood furniture calcite putty powder. The putty powder is prepared from 70-80 parts of calcite, 10-20 parts of white cement, 2-5 parts of titanium dioxide, 25-45 parts of styrene butadiene latex powder, 0.5-1.5 parts of lignocelluloses and 15-35 parts of acrylic latex powder. The putty powder is mainly used in the fields of wood processing and furniture manufacturing. The putty powder is nontoxic and tasteless, does not harm the environment or the construction personnel, and can effectively prevent air and carbon dioxide in the air permeating into the wood, so the putty powder has good corrosion and pollution resistance; and the putty powder has the advantages of fast drying speed, season crack prevention, difficult peeling and shedding, simple production process, use through knife coating or brush coating, simple operation, low cost and good market prospect.

The invention relates to the field of traditional Chinese medicines, in particular to a traditional Chinese medicine hand lotion and a preparation method of the traditional Chinese medicine hand lotion. The traditional Chinese medicine hand lotion is characterized in that the traditional Chinese medicine hand lotion is prepared from swine pancreas, almonds, radix angelicae, radices trichosanthis, radix paeoniae alba, pearl powder, pitted red dates and rice wine according to a certain proportion. The traditional Chinese medicine hand lotion is low in preparation cost, good in hand protection effect, abundant and moist, and can effectively prevent and treat hand roughness and season cracks in autumn and winter; one month after the traditional Chinese medicine hand lotion is applied to hands every morning, skin of the hands is as white as polished jade, and the traditional Chinese medicine hand lotion has any toxic or side effect.

The invention discloses a method for preparing a SmS thin film by a solvothermal method. The method comprises the following steps of: introducing Ar into de-ionized water to remove O2 from the water; dissolving analytic pure SmCl3 6H2O into the de-ionized water into which the Ar is introduced to prepare a solution A; dissolving analytic pure trioacetamide into absolute ethyl alcohol to prepare a solution B; uniformly mixing the solutions A and B, and regulating a pH value to obtain a solution C; and pouring the solution C into a hydrothermal reactor, arranging a substrate in the hydrothermal reactor, sealing the hydrothermal reactor, arranging the hydrothermal reactor in an electric vacuum drying oven for reaction, naturally cooling the hydrothermal reactor to room temperature, washing the substrate by using the absolute ethyl alcohol or isopropanol and drying the substrate to obtain the SmS optical thin film on the surface of the substrate. By the method, the reaction for the preparation of the SmS thin film is finished once in an organic or blended liquid phase without post crystallization thermal treatment, thereby overcoming the shortcomings of curling, seasoning cracking, grain enlargement, reaction between the thin film and the substrate or an atmosphere and the like which may be caused to the SmS thin film by a thermal treatment process; moreover, process equipment is simple, high voltage is easy to obtain, reaction temperature is low, and the obtained film has relatively higher purity and controllably grown grains.

The invention discloses a foot skin-softening cream technology and relates to the technical field of skincare products. The process flow comprises the following steps: S1) pretreatment of raw ingredients; S2) aqueous phase operation; S3) oil phase; S4) emulsification, homogenizing and cooling; S5) adding of essence and preservative; S6) discharging; S7) storage and check of semi-finished products;S8) filling and covering; S9) external packing; S10) inspection of finished product; S11) storage and delivery. The invention designs a foot skin-softening cream with excellent effects of softening heel and foot skin, restraining the forming of thick and hard skin on foot and other parts, enhancing skin elasticity, preventing rhagadia and seasoning crack and removing necrotic tissues and scale ofskin; the foot skin-softening cream designed by the invention has excellent heat resistance and cold resistance; the oil-water separating phenomenon is difficult to occur in the cream; the foot skin-softening cream is low in limit of toxic substance, is harmless to human body, is beneficial to skin softening and repairing and is capable of supplementing comprehensive nutrition and water to skin in time.

The invention discloses a high-temperature-resistant photovoltaic cable and a construction method. The existing photovoltaic cable has relatively traditional design, poor high temperature resistance,season cracking failure after sunlight irradiation for a long time and short service life. The high-temperature-resistant photovoltaic cable comprises a conductor (1) and an insulating outer layer (3)arranged on the outer side of the conductor, wherein a thermal insulation filler (2) is filled between the conductor and the insulating outer layer; the upper part of the insulating outer layer is respectively connected to a group of semicircular sunshade baffles (4) through springs (7); the two adjacent sunshade baffles are connected through plastic cloth (6); and the concave surface of each sunshade baffle is provided with a layer of thermal insulation inner pad (5). The invention is used for the high-temperature-resistant photovoltaic cable and the construction method.

The invention discloses a novel drying and calcining process for an integrated extrusion type diesel vehicle denitration catalyst. The novel drying and calcining process comprises primary drying and calcining, during primary drying, intensive type air intake and intensive type air discharge are adopted, so shat uniform and stable air current circulation can be guaranteed, and therefore, a uniform moisture removal effect is achieved; during calcining, a calcining furnace adopts wind-cone-form air intake, and radioactive cone-shaped air with a uniform temperature is formed through a specific cone-shaped air inlet, so that uniformity of hot air can be controlled, and seasoning cracks due to the fact that the catalyst is directly blown by hot air are avoided; and on the premise of reaching indexes such as strength and physical defects of the diesel vehicle denitration catalyst, the percent of pass of finally obtained products is guaranteed.

The invention relates to a rock mass power function type microscopic season cracking three-dimensional model. The three-dimensional model comprises a rock mass microscopic particle bonding stress three-dimensional mode giving a consideration to a twisted contribution factor, a microscopic particle bonding season deterioration attenuation three-dimensional power function mode giving the consideration to the twisted contribution factor, a Mohr-Coulomb microscopic particle bonding season cracking criterion giving the consideration to twisted contribution effect and provided with tension cut-off limit, and a microscopic particle linear contact three-dimensional model giving the consideration to damping effect. The rock mass power function type microscopic season cracking three-dimensional model is suitable for the rock mass, and the relation between the stress and the crack expansion speed of the rock mass is in accordance with the power function under a three-dimensional stress space condition, and is used to provide technical support for surrounding rock long-term stability prediction, evaluation, and design optimization of deep rock mass engineering under the three-dimensional stress condition.