943results about How to "Melting fast" patented technology

A method of manufacturing a bit body, other drilling-related component, or other article of manufacture, including fabricating a particulate-based matrix and infiltrating the particulate-based matrix with a binder that includes cobalt or iron. The binder may be a cobalt alloy or an iron alloy. The particulate-based matrix may be disposed within a non-graphite mold. The particulate-based matrix and binder are placed within an induction coil and an alternating current is applied to the induction coil in order to directly heat the binder, permitting the binder to infiltrate or otherwise bind the particles of the matrix together. The molten binder may then be directionally cooled by forming a cooling zone around an end portion of the bit body and increasing the size of the cooling zone relative to the bit body. The invention also includes a bit body, other drilling-related component, or other article of manufacture which includes a particulate-based matrix that is bound together with a binder that includes iron or cobalt.

An electrically operated scented wax holder that forms a receptacle for receiving unmelted blocks of wax which are heated to the melting point and thereafter maintained at a safe temperature by a temperature-regulated electrical heating element. The wax receptacle is removable mounted on a base section that houses a positive temperature coefficient (PTC) thermistor which has a transition temperature substantially higher than the melting point of the wax to insure that the wax is rapidly melted, but substantially below the temperature that would constitute a danger to a human who might touch the exterior surface of the warmer, or constitute a fire hazard. The heating element is preferably placed in thermal contact with a contact pad having high thermal conductivity that is in turn placed closely adjacent to the wax receptacle, thereby efficiently transferring heat from the electrically operated temperature regulated heating element to the wax in the receptacle. A switch is positioned to de-energize the heating element whenever the wax receptacle is removed from the base section, and a visible pilot light is illuminated whenever the heating element is energized.

A fuse is melted and cut off when an overcurrent flows through the fuse. The fuse has a different thermal expansion coefficient metal laminate obtained by laminating a plurality of different thermal expansion coefficient metal plates. When the fuse is melted and cut off by heat of the overcurrent, a mechanical deforming force is applied to a melting portion of the fuse. The mechanical force is caused by the difference between thermal expansion coefficients of the different thermal expansion coefficient metal plates.

The invention provides a fiber reinforced thermolplastic plastic preparation method, which is obtained by mixing thermoplastic resin, fortifying fiber and auxiliary substance with exhaust type single screw-spindle extrusion machine, and extruding them, the extrusion temperature being 190-350 deg. C, the screw-spindle rotate speed being 20-120 r/min.

The component of the paper soap include carboxymethyl cellulose sodium, fatty alcohol polyioxymethyl ethyleneethere sodium sulfate, sodium dodecyl benzene sulfonate, lauryl sodium sulfate, cocinin diethanolamide, nonly phenol polyoxyethyleneether, glycerine, quaternary ammonium salt and citric acid. Its preparation includes preparing carboxymethyl cellulose sodium mother liquor, adding the mixed solution of other components to prepare solution through stirring, spraying the prepared solution of PVC plate and drying in a sealed room and moisture extract at 35-40 deg.c to form film.

Disclosed are a powder injection molding feedstock preparing method and a powder injection molding method. The powder injection molding feedstock preparing method includes: stirring and heating 80% to 94%, preferably 85% to 94%, by percent, of forming powder in an internal mixer, adding 6% to 20%, preferably 6% to 15%, by percent, of binder component when the forming powder is heated to 180 DEG C to 200 DEG C, and continuing stirring for 60min to 120min according to the mixing temperature 175 DEG C to 195 DEG C, preferably at the mixer speed 10rpm to 30rpm, thus obtaining evenly mixed feedstock. The powder injection molding method includes performing injection molding and degreasing sintering with the feedstock. The powder injection molding feedstock preparing method and the powder injection molding method have the advantages that degreasing efficiency is high, the process is simple and easy to control, blank quality is good and the methods are sanitary and environment friendly.

A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic vessel (14) functioning as a vessel electrode (62). A stream (12) of waste material and vitrifiable material are mixed and melted in the vessel (14) for vitrification. The waste vitrification method converts a feed stream (12) by mixing the feed stream into a glass melt (13) and melting glass batch of the feed stream (12) to form a foamy mass. The stream is dispersed by the impeller (16) to form a foam which is then densified in a settling zone (22), recovered through a spout (24) and solidified in storage containers. Means are provided to adjust the location of the mixing impeller (16) in the vessel (14) to change the depth of the settling zone (22). The impeller (16) is mounted on a drive shaft (18) having a recirculating coolant flow.

A road repair kit and/or bridge joint repair kit is comprised of an outer container, a measured amount of binder material and a separate and distinct measured amount of aggregate material. In one preferred embodiment of this invention, the binder material is in a first consumable container (meltable bag) and the aggregate material is, likewise, in a second consumable container (meltable bag) inside the first consumable container. In another preferred embodiment, both the binder and the aggregate are contained in the same consumable container (meltable bag).

The invention provides a base plate structure for an outdoor unit of an air conditioner, the outdoor unit of the air conditioner, the air conditioner and a defrosting control method for the air conditioner. The base plate structure for the outdoor unit of the air conditioner comprises an outdoor unit base plate, a base plate electric heating element and a drainage part, wherein a compressor fixing support is arranged on the outdoor unit base plate, and a condenser is installed on the outdoor unit base plate; the base plate electric heating element is arranged at the bottom of the condenser and located above the outdoor unit base plate; and the drainage part is arranged on the outdoor unit base plate and comprises at least one main drainage port, and the main drainage port is located below the base plate electric heating element. By adopting the base plate structure, when the air conditioner is heated for defrosting at a lower outdoor temperature, frost on the condenser and the outdoor unit base plate can be quickly and thoroughly thawed, and the thawed water quickly and smoothly flows out of the main drainage port, so the frost is thawed cleanly and thoroughly, the temperature of an indoor air port is improved, a good heating effect is guaranteed, and the market competitiveness of the product is improved.

To provide an air conditioner carrying out defrosting operation while continuing heating operation. This air conditioner comprises a first bypass circuit connecting the suction side of a compressor between an indoor heat exchanger and a decompressor of a heat pump type refrigeration cycle, the first bypass circuit including a two-way valve and a refrigerant heater; and a second bypass circuit connecting a part between a four-way valve connected to the refrigeration cycle and the indoor heat exchanger to a part between the decompressor and an outdoor heat exchanger, the second bypass circuit is provided with two-way valve. When defrosting the outdoor heat exchanger is performed, the two-way valve of the first bypass circuit and the two-way valve of the second bypass circuit are opened to guide current to the refrigerant heater for heat storage prior to the defrosting operation, and the defrosting operation is performed while continuing heating.

The invention relates to a process for performing laser cladding on an alloy coating with characteristics of wear resistance and heat resistance by hot rolling of a seamless steel pipe, which is characterized by comprising the following steps: removing oil and rust on the surface of a transport roller under room temperature, washing by alcohol; preparing the alloy powder, mixing superhard high speed steel powder alloy powder and carbide powder according to proportion of 4:1; selecting a 3.5*1mm focusing mirror, adjusting defocusing amount to make a focused laser spot as an elliptical shape, employing a synchronization powder feeding apparatus for automatically seeding the alloy powder into a laser molten pool, focusing laser beam with high power, feeding by an automatic powder feeding head along the axial direction of the transport roller of the seamless steel pipe, setting rotating speed for rotation, forming an uniform and compact laser cladding layer on the surface of the transport roller; performing hot rolling on the transport roller of the seamless steel pipe, and then performing heat treatment; and grinding and processing a laser cladding hard alloy coating to the required size. The cladding layer hardness of the formed uniform and compact wear-resistant anti-corrosion cladding layer can reach more than HRC 65, and the service life is increased by more than 8 times.

An adhesive dispensing system and method are configured to melt adhesive on demand and maintain the adhesive in a liquid state between dispensing cycles. The dispensing system includes a dispensing applicator with a manifold passage, a receiving device including a receiving chamber for holding a small amount of solid adhesive at the dispensing applicator and a first heating device for melting the adhesive on demand, and a second heating device at the manifold to maintain the temperature of the melted adhesive before dispensing. The receiving device is positioned adjacent to or partially nested within a manifold of the dispensing applicator such that the melted adhesive is delivered directly into the dispensing applicator. The second heating device applies heat energy to maintain the adhesive in the manifold passage as a liquid.

The invention discloses a self-cleaning control method of an outdoor heat exchanger of a variable-frequency air conditioner and the air conditioner. The method comprises the following steps that (1),the current outdoor environment temperature T-out is detected, moreover, whether the current outdoor environment temperature meets the condition of entering the self-cleaning control of the outdoor heat exchanger or not is judged, if yes, the step (2) is executed, otherwise, the self-cleaning control of the outdoor heat exchanger is not executed; (2), the outdoor heat exchanger is controlled for frosting; (3), frost formed by the outdoor heat exchanger is melted, and self-cleaning control is completed. According to the self-cleaning control method of the outdoor heat exchanger of the variable-frequency air conditioner, a large amount of low-density frost is formed quickly in a short time through the outdoor heat exchanger, then the frost is quickly melted, and then dust attached to the outdoor heat exchanger is washed away.

The invention discloses a scrap steel pre-heating conveyor with a short process, comprising a conveying trough (1) which is provided with a fume guiding hood (2) and is inclined relative to the horizontal plane. The lower end of the conveying trough (1) extends into an electric furnace (A) via an opening on the sidewall of the electric furnace (A); a bottom-opened long distributing trough (D) is arranged above the other end of the conveying trough (1), is arranged above a material receiving section of the conveying trough (1) by a swing device (Q), and is arranged in the downward projection of the material receiving section of the conveying trough (1) longitudinally; and scrap steels (C) are longitudinally arranged at the bottom of the material receiving section of the conveying trough (1) in a strip shape, and then the conveying trough (1) conveys the scrap steels (C) into the electric furnace (A). The scrap steel pre-heating conveyor with a short process is short, has high heat exchange efficiency, low operation rate of a crane, small abrasion, less maintenance, energy conservation, environment protection and reduces investment and operation cost, thus the invention is a new energy-saving and environment-friendly technology with promotional value in smelting technique, such as electric furnaces and the like.

The invention discloses a total-converting steelmaking method of an electric furnace. The method achieves the purposes of energy saving and consumption reducing through the working procedures containing adjustment for ratio of raw materials and strict control for the converting process. The method specifically comprises the following steps of: controlling the proportion of molten iron to be 71-79 percent; adding steel scraps through a furnace mouth for one time, and adding the molten iron through an iron exchanging mouth for two times; preheating, warming and decarburizing the steel scraps and molten steel in a furnace through a nozzle of an oxygen-burning system 3 installed on a furnace wall; during converting, regulating a corresponding gear according to demands, meanwhile converting with a furnace door oxygen gun, and making the converting efficiency to be maximized; adding slag making materials such as lime into the electric furnace to make slag; and when the molten steel achieves the temperature and components needed by steel grades, carrying out ladle deoxidization for steel tapping. Compared with the general steelmaking method of the electric furnace, the total-converting steelmaking method of the electric furnace has the advantages that electrode heating is cancelled, the consumptions of the electric energy, electrode and steel scrap are greatly reduced, the smelting cost per ton of steel is greatly reduced, the pollution is decreased, meanwhile the contents of harmful elements in the steel are reduced, and the product quality is increased.

The invention provides a low-melting-point resin material for a three-dimensional printer. The material comprises the following components in percentage by weight: 30-60% of styrene-acrylic resin, 10-50% of first polyester resin, 0-10% of second polyester resin, 1-15% of additives, 0.5-6% of wax, and 0.1-2% of fumed silica, wherein the glass transition temperature Tg of the styrene-acrylic resin is 55-65 DEG C and the softening point temperature T1/2 is 120-130 DEG C; the glass transition temperature Tg of the first polyester resin is 43-48 DEG C and the softening point temperature T1/2 is 80-85 DEG C; the glass transition temperature Tg of the second polyester resin is 45-65 DEG C and the softening point temperature T1/2 is 80-110 DEG C. By adopting the scheme, the glass transition temperature Tg of the low-melting-point resin material for the three-dimensional printer is 48-65 DEG C and the softening point temperature T1/2 is 85-110 DEG C. Therefore, the melting temperature of an FDM three-dimensional printer material is remarkably reduced, and the scald risk of an operator is correspondingly reduced while the energy consumption is reduced.

The invention discloses a cyclone melting device and a cyclone melting method for fly ash preheating, particularly relates to a device and a method for fly ash melting treatment. The device comprises a cyclone furnace and a fly ash preheater, wherein a smoke outlet of the cyclone furnace is connected with a hot smoke inlet of the fly ash preheater, and a working medium outlet of the fly ash preheater is communicated with a secondary air tangential inlet of the cyclone furnace. The method comprises the steps as follows: mixing the primary air with coal powders; spraying into the front end of the cyclone furnace from a primary air inlet of the cyclone furnace; carrying fly ashes into the fly ash preheater through the secondary air for the combustion of the coal powders through adopting the pneumatic transmission technology, enabling high-temperature smoke generated by combustion in the cyclone furnace to enter the fly ash preheater for heating the secondary air and the fly ashes, enabling the fly ashes after heated through the high-temperature smoke to enter the cyclone furnace, quickly heating the fly ashes to reach the fly ash melting temperature, rotating the secondary air in the cyclone furnace at a high speed, throwing the fly ashes to the wall surface of the cyclone surface under the action of a centrifugal force, quickly melting the fly ashes through the high-temperature wall surface, and discharging the molten fly ashes in the form of liquid slags from a liquid deslagging hole at the bottom of the cyclone furnace.

The invention relates to the field of wireless communication technology, in particular to an antenna radiation body made of low-melting-point metal or metal alloy, and a manufacturing method therefor. The manufacturing method for the antenna radiation body made of low-melting-point metal or metal alloy comprises the following steps: (1), a plastic bracket is formed through injection moulding, and a plurality of grooves are formed on the plastic bracket; and (2), molten low-melting-point metal or metal alloy is injected into the grooves of the plastic bracket, and after solidification, the antenna radiation body is made. Compared with the prior art, the manufacture method for the antenna radiation body made of low-melting-point metal or metal alloy material has the advantages that deformation and melting to the plastic bracket can not be caused, and a thinner antenna radiation body can be manufactured; and meanwhile, the electric conductivity is excellent, and the performance of the antenna is improved.

A laser furnace for smelting different alloys, the metal or alloy difficult to smelt, pure alloy, etc is composed of furnace body, copper mould, cooling water unit, atmosphere protector, upper furnace body and top cover, and features the laser beams are used as heat source for smelting alloy.

The invention discloses a low-free high-compatibility toluene diisocyanate trimer curing agent and a preparation method thereof. The preparation method comprises the following steps: under nitrogen protection, putting a toluene diisocyanate monomer, a solvent and an antioxidant into a reaction vessel; controlling the reaction temperature to be 10-50 DEG C at an earlier stage; adding a catalyst in batches when NCO% is 12-14wt% and 10-11wt% and reaction is started; when NCO is 9.3-10wt%, adding the residual catalyst and controlling the temperature to be 50-100 DEG C; when NCO% is 8.0-9.3wt%, adding a polymerization inhibitor, reacting for 0.5-1 h, adding a component A, reacting for 2-4 h, adding a component B, reacting for 1-2 h, stopping reaction, cooling to room temperature and discharging materials so as to obtain the toluene diisocyanate trimer curing agent with free TDI less than 0.5%, xylene tolerance larger than 3, light color, quick drying and stable performance finally.