112 results about "Roll bonding" patented technology

A cooling module including a condenser, a power module including the cooling module and a method for cooling electric and / or electronic components are provided. The condenser of the cooling module includes at least one panel for cooling electric and / or electronic components. Two sheets of the panel are attached to one another by a process involving roll-bonding such that a conduit is formed between the two sheets. The conduit extends in a direction of a plane formed by the sheets. Cooling may be provided by evaporating coolant in the conduit at an evaporation section of the panel and by condensing the coolant at a condensing section of the panel. A heat load may be transferred from a heat source to a heat receiving unit. The heat receiving unit is adapted to transfer the heat load to the panel which transfers the heat load to an ambient environment by a thermal carrier.

A method and apparatus for bonding and aperturing one or more fibrous webs including bonding at least one fibrous web in a bonding nip created by a rotatable bonding roll and a rotatable anvil roll and aperturing the at least one fibrous web in an aperturing nip created by a rotatable aperture roll and an anvil roll. The bonding roll has a plurality of protuberances extending from the peripheral bonding surface that define a bonding pattern and result in highly bonded regions within the fibrous web. The aperture roll has a plurality of projections extending from the peripheral aperture surface that define an aperturing pattern. The aperturing pattern substantially aligns with the bonding pattern thereby creating apertures within the highly bonded regions.

The invention provides a high-strength / toughness magnesium lithium alloy and a preparation method thereof by an accumulative roll bonding process. The method comprises the following steps: a) carrying out homogenizing treatment on a smelted magnesium lithium alloy cast ingot; b) carrying out thermal deformation processing to obtain a magnesium lithium alloy plate; c) carrying out stress-relief annealing; d) cutting the plate for accumulative roll bonding into two pieces with equal size, and carrying out surface treatment; e) fixing the two Mg-Li alloy plates; f) rolling; g) repeating the roll bonding according to the steps d)-f) 4-6 times; and h) carrying out annealing treatment. The obtained alloy comprises the following components in percentage by mass: 7.5-9.5% of Li, 2.5-3.5% of Al, 0.5-1.5% of Zn, less than 0.03% of inevitable impurities (Fe, Cu, Ni, Mn and Si), and the balance of Mg. The magnesium lithium alloy is reinforced according to the specific alloying elements and proportioning thereof, and subjected to multipass accumulative roll bonding at proper temperature to refine the magnesium lithium alloy crystal grains, so that the alloy has higher strength on the premise of keeping favorable plasticity.

An anti-bonding material is placed in a desired pattern onto a first sheet of conductive material. A second sheet of conductive material is roll bonded with the first sheet of material. Fluid is injected between the bonded first and second sheets of material to expand the sheets of material at the desired pattern. A flow channel is formed at the desired pattern between the first and second sheet during fluid injection.

The invention discloses a method for preparing a metal layered micro-gradient composite material. The method is mainly characterized in that the micro-gradient composite material is obtained through interface diffusion of alloy elements with the homologous-series heterogeneous multi-layer metal rolling bonding and heat processing technology. Metal with two kinds of alloy content is adopted for rolling bonding, and the to-be-bonded surfaces are grinded and washed; after the ends are fixed, rolling bonding is carried out, and a multi-layer heterogeneous metal composite board is prepared; then heat processing is carried out on the composite board, the temperature is kept for a certain period of time according to requirements, the alloy elements are diffused on interfaces, and therefore the layered micro-gradient composite material is obtained. According to the metal layered micro-gradient composite material prepared with the method, obvious micro-gradients in chemical components and performance exist nearby the interfaces, and the good interface bonding strength can be achieved; the number of the micro-gradient interfaces and the thickness of micro-gradient layers can be adjusted and controlled by changing the rolling bonding technology, the laminating order and the heat processing technology.

The invention discloses a method for preparing a titanium alloy thin plate by cladding and rolling of a steel plate, and relates to a processing method of a metal plate. It is characterized in that the rolling process is that the titanium alloy plate is hermetically covered by a steel plate to form a stacked rolling bag, and then rolling is carried out. The method of the invention has low rolling cost, and the titanium alloy thin plate is produced by cladding, welding, stacking and hot rolling, the process is simple, and the comprehensive performance of the obtained material is excellent.

Galvanically protected reinforcement dowel pins and methods of producing the same. In one embodiment, the reinforcement dowel pins comprise a bar or tube, the longitudinal exposed surfaces of which are covered by a heavy gauge of a sacrificial metal, such as zinc, zinc alloy, magnesium, magnesium alloy, aluminum, or aluminum alloy. The bar or tube comprises steel, carbon steel, or other ferrous metal. The heavy gauge of sacrificial metal is applied to the ferrous metal by various processes, such as roll bonding, lock seaming, welding, die casting, flame spraying, plasma spraying, dipping, sinking, and drawing. The resulting reinforcement dowel pins resist corrosion without sacrificing structural integrity, and are reasonable in materials and manufacturing costs. These dowel pins may be installed in adjacent concrete panels using conventional methods, and therefore do not introduce additional costs in installation.

The invention relates to a preparation method of an electromagnetic shielding multi-layer composite material in an electric vacuum device, which belongs to the field of preparation of layered composite materials. The preparation process comprises the following steps: firstly performing large-deformation rolling bonding on oxygen-free copper after surface treatment and an electrical pure iron thin plate, and getting a Cu / Fe / Cu composite foil with higher parallelism and mechanical properties; and then combining and stacking the Cu / Fe / Cu foil with a molybdenum sheet and other low thermal expansion refractory metals, placing in a diffusion welding furnace to perform diffusion welding at a certain temperature and pressure, and further preparing the multi-layer composite material with good magnetic shielding effect, high dimensional precision, strong mechanical properties and good thermal matching. By adopting the new preparation process, not only the problem that the low thermal expansion metals are difficult to compound is solved, but also the advantages of rolling bonding and the diffusion welding process can be fully played, thereby realizing good parallelism among laminated layers, high dimensional precision and excellent mechanical properties of the material, simultaneously having relatively low cost and high production efficiency, and being easy to realize large-scale and industrialized production.

The invention relates to a method for composite centrifugal casting of high-chromium steel rolls, which is characterized in that a semi-steel intermediate transition layer is set between the high-chromium working layer and the ductile iron core, and the chemical composition weight of the semi-steel intermediate transition layer The percentages are: C 1.0~2.4%, Si 0.4~1.5%, Mn 0.4~1.5%, P 0~0.1%, S 0~0.03%, Cr 0~0.2%, Ni 1.0~2.0%, Mo 0~0.2% , and the rest is Fe. The beneficial effects of the invention are: the bonding strength between the high chromium working layer and the core nodular cast iron is improved, and the peeling of the bonding layer of the high chromium composite cast steel roll and the occurrence of roll breaking accidents are prevented.

A brazable composite metal material for a heat exchanger tube or manifold, a method of making the tube or manifold, and a heat exchanger made therefrom. The composite metal suitable for making the heat exchanger tube or manifold has one of an aluminized carbon steel, galvanized carbon steel, or steel wire mesh core roll bonded to at least one outer layer of a brazable aluminum alloy, such as type 3003 aluminum alloy. The method of making the heat exchanger tube includes the steps of (a) providing a core of one of an aluminized carbon steel, galvanized carbon steel, or steel wire mesh sheet or strip material; (b) placing at least one sheet or strip of brazable aluminum alloy material on the steel core; (c) roll bonding the aluminum alloy material to the aluminized surface of the steel core to form a roll bonded composite sheet or strip material; (d) forming the composite material to a desired configuration; and (e) joining abutting aluminum edges of the formed composite to form a fluid tight joined edge defining a shape having an open interior.

This chassis (2) comprises a clad material obtained by roll bonding a first layer (21), which is formed from an austenitic stainless steel, a second layer (22), which is formed from Cu or a Cu alloy and which is laminated on the first layer, and a third layer (23), which is formed from an austenitic stainless steel and which is laminated on that side of the second layer which is opposite the first layer, wherein the thickness of the second layer is 15% or more of the thickness of the clad material.

The invention relates to a roll-bonding process for semisolid copper-lead bearing alloys / steel bimetals. The weight content percentage of the lead in the copper-lead bearing alloy is 10.0 to 30.0%. In order to refine the crystalline grain of the lead and improve the mechanical property of the alloy, sulfur, tin, nickel, manganese, rare earth and other the third alloy elements can be added in the copper-lead alloy. The process comprises four steps: pretreatment of steel plates, preparation of semisolid sizing agent, roll bounding and water cooling. The detailed process comprises the following steps: performing mechanical agitation to the melted copper-lead bearing alloys at 930 to 1050 DEG C to obtain the semisolid sizing agent; pouring the semisolid sizing agent on the pretreated steel plates; synchronously feeding the semisolid copper-lead bearing alloys and solid steel plates in to a mill for rolling; spraying water for cooling to obtain the bimetallic composite plate. The invention effectively overcomes the defect of lead segregation in the production of the copper-lead bearing alloys in the prior art, therefore, metallographic structure with fine lead particle and even distribution is obtained. According to mechanical test results, the interfacial shear strength of the copper-lead bearing alloys / steel bimetallic slabs prepared using the process is more than 60Mpa, increased by about 10Mpa.

The invention relates to the field of metal material processing, in particular to a process for preparing magnesium alloy with a layered gradient structure. The process includes the following steps that a, two or more magnesium alloy plates in the same specification are selected, and the magnesium alloy plates are subjected to surface mechanical attrition treatment; b, the bonding surfaces of eachplate are cleaned to remove oxide layers and dirt; c, the processed plates are laminated together and tightly jointed so as to reach the standard that there is no relative movement between the plates; d, the laminated plates are put into an incubator, and heat preservation is carried out for 5-30 min after the temperature is raised to the set temperature of 150-450 DEG C; e, the plates are takenout and immediately put in a rolling mill to be subjected to rolling with the rolling reduction of 30%-70%, and one-time pack rolling is completed; and f, the plates are subjected to air cooling to reach the room temperature. The process is simple and convenient, safe and reliable, low in production cost and suitable for improving the comprehensive mechanical property of the magnesium alloy platesin industrialized production.

The invention provides a rolling level thermoplastic polyurethane elastomer and a preparation method thereof. The thermoplastic polyurethane elastomer is mainly prepared of the following components in parts by weight: polymeric glycol, isocyanate mixture, diethylene glycol, nano SiO2 modified polypropylene and hydroxyethyl acrylate, wherein the polymeric glycol is a polytetramethylene glycol and adipic acid 1,4-butyl glycol ether glycol mixture; the isocyanate mixture is a toluene diisocynate and hexamethylene diisocyanate mixture. Under the synergistic effect of polytetramethylene glycol and adipic acid 1,4-butyl glycol ether glycol and the synergistic effect of toluene diisocynate and hexamethylene diisocyanate, the prepared rolling level thermoplastic polyurethane elastomer is high in processing performance and resilience performance due to nano SiO2 modified polypropylene and hydroxyethyl acrylate serving as a crosslinking agent; meanwhile, the phenomenon of roll bonding can be avoided in a working process.

The present invention relates to a liquid-solid rolling bonding method for heterogeneous metals and an apparatus therefor. The method comprises: pouring a liquid metal onto the surface of a heterogeneous solid base metal coated with a soldering flux; rolling the liquid metal and the solid metal under pressure; solidifying the liquid metal and making it bond to the surface of the solid base metal under rapid cooling to realize metallurgical bonding of the two or more metals. The apparatus comprises an unrolling machine, a soldering flux tank, a drying-heating apparatus, a pouring nozzle, an interior water-cooling rollers and a roll-collecting machine arranged in order, a pouring basket is disposed above the pouring nozzle and a base frame is disposed below the pouring nozzle. The present invention has the advantages of high bonding strength, lower production cost, high production efficiency, good product quality, fewer investment for the apparatus and lower consumption of energy. The method of the present invention can replace the convention rolling bonding method in solid-solid phase and is suitable for the production of various clad metal sheets and strip.

The invention provides a lithium supplement device for a pole piece and a lithium supplement method of the device. The device is provided with a sealing shell, a pole piece unrolling assembly, a lithium liquid coating assembly, a cooling assembly, a normal-temperature roll-in assembly and a pole piece rolling assembly, and the pole piece unrolling assembly, the lithium liquid coating assembly, thecooling assembly, the normal-temperature roll-in assembly and the pole piece rolling assembly are arranged in the sealing shell and connected in sequence; the lithium liquid coating assembly comprises a pair of rollers composed of an intaglio roller and a hot back roller, and a lithium liquid storage groove is formed below the intaglio roller and connected with a lithium liquid production devicethrough a pipe. The lithium supplement device is simple in structure, the equipment cost is greatly lowered, the problems such as rolling bonding and adhesion during pressing fit of a lithium band arecompletely solved, the consistency of lithium supplement is greatly improved, the production high-quality rate is greatly increased, and the production efficiency is greatly improved.

The invention discloses a dissimilar metal rolling bonding method with embedded type rib groove interlocking, and belongs to the field of bi-metal composite plate preparing. The method comprises the following steps of S1, single-side convex rib rolling, wherein a flat roller and a figure roller with a groove are matched, a first plate blank is rolled, and a convex rib is formed on the single sidesurface of the first plate blank; S2, preassembling rolling, wherein a second plate blank and the first plate blank are embedded, the first plate blank is embedded into the second plate blank to formchain type connection, and an embedded composite workpiece is formed; and S3, asymmetrical rolling, wherein the embedded composite workpiece is subjected to asymmetrical forming rolling, and a dissimilar metal composite plate is formed. The problem that in the prior art, the bonding strength of a dual-metal composite plate is low totally can be solved, the rolling bonding method that embedded typeribs and grooves are manufactured in dissimilar metal contact, and through asymmetrical rolling, rib and groove interlocking is achieved is adopted, measures of combining mechanical type connection,generation of an interlocking structure and increasing the diffusion rate are used, and the interface contact strength can be sufficiently improved.

A method for making a metal laminate comprising at least one plating step and at least one cold roll bonding step. A metal laminate comprising a plurality of alternating structural layers and non-structural layers, where the structural layers contribute significantly to the overall strength of the metal laminate, while the non-structural layers do not contribute significantly to the overall strength of the metal laminate, but serve to bind the structural layers together.

The invention relates to a use of a multi-layer metal composite material, which is produced by way of roll-bonding and can be wound, in a vehicle structure, particularly a body structure. It is the object of the invention to provide a use of a metal composite material as an alternative to monolithic materials. The object is achieved in that the composite material is a lightweight composite material and comprises three layers of a steel alloy, wherein at least one of the layers is made of a steel alloy having higher strength or maximum strength.

Provided are a process method for bond-packaging an LED using a refined photoconverter, and a refining equipment system. The process method includes the following continuous process flow: roll-shaping of a special-shaped microporous carrier sheet, refining of a semi-cured photoconversion sheet, preparation of a flip chip LED array sheet, forming of LED package elements by roll-bonding, curing of the LED package elements, and cutting of the LED package elements. The present invention has a significant advantage of a refined photoconverter, and especially can meet a requirement of a continuous process flow of bond-packaging an LED using an organic silicone resin photoconverter, so as to enhance the production efficiency and yield of LED packages in industrialized batch production.

A method for bonding a gas barrier film and an electronic device, comprising continuously feeding a film composite that contains a gas barrier film having a support and a gas barrier layer, and an adhesive layer; blanking or slitting a part of the film composite to form a wire lead-out part therein; and continuously roll-bonding the film composite to a substrate with an electronic device formed thereon; wherein the feeding of the film composite, the forming of the wire lead-out part and the roll-bonding are carried out through in-line operation.

The invention discloses a package based on the technology that a frame is connected through bonding wires and a manufacturing process of the package. The package comprises a chip, a plastic packaging body, a silver-plated layer and the bonding wires. The silver-plated layer is composed of silver-plated layer sections which are independent from each other, the chip is located on a part of the silver-plated layer, the chip is connected with the portions, without the chip, of the silver-plated layer through the bonding wires, the plastic packaging body wraps the chip, the silver-plated layer and the bonding wires, and the chip, the silver-plated layer and the bonding wires constitute a power source and signal channel of a circuit. The package further comprises metal bumps. The manufacturing process comprises silver plating of the frame, wafer thinning, scribing, assembly of the chip, manufacturing of the metal bumps, pressure welding, plastic packaging, corrosion of the frame, cutting and packing, wherein the step of manufacturing of the metal bumps can be eliminated. According to the package and the manufacturing process thereof, due to the fact that pressure welding is directly conducted on the metal bumps after electrosilvering or the method of direct wiring after electrosilvering is used, design of a frame graph is finished when the frame is manufactured, the manufacturing period is shortened, interconnection of the chip and carriers is achieved better, the higher I / O density is achieved, and cost is lower.

A current collector plate, also called a bipolar plate, for a fuel cell includes two facing metal sheets with fluid channels for the fuel (often hydrogen) on the non-facing side of one sheet and fluid channels for air on the non-facing side of the other sheet. Such a plate is made by applying a patterned coating of particles of a soft and reactive metal to at least one of the sheets and rolling them together so that the soft metal particles deform and interact with the facing sheets to selectively join them at the patterned areas. Pressurized fluid is introduced between the sheets to expand non-bonded portions and define the fluid channels.

[Problem] To provide a heat spreader capable of removing heat from an element more efficiently and immediately than an existing one, and also capable of satisfactorily responding to further enhancement in performance and output of various apparatuses, and a method for efficiently manufacturing the same. [Solution] A heat spreader includes a Cu—Mo layer made of a Cu—Mo composite material and having an average thickness of less than or equal to 0.6 mm and a variation in thickness of less than or equal to 0.1 mm, and a Cu layer directly stacked on each of both surfaces thereof. A method for manufacturing the heat spreader includes planarizing a plate material of the Cu—Mo composite material constituting the Cu—Mo layer, and roll-bonding a Cu plate constituting the Cu layer to each of both surfaces thereof.