37results about How to "Avoid soldering process" patented technology

The invention provides a method for mounting a steel-structure module in place. The method for mounting the steel-structure module in place comprises the steps that foundation bolts are mounted in place; a concrete foundation is poured; steel column base mortar lumps are arranged on the foundation; guiding devices and a horizontal jacking deviation correction device used for leveling a base are manufactured, and the guiding devices are arranged at the tops of the foundation bolts in a sleeving mode; bolt holes are formed in the base; steel columns are welded on the base; the steel columns and a steel-structure beam are assembled into a steel-structure frame in a prefabrication factory, technological pipelines are mounted in the frame, and thus the steel-structure module is formed; the steel-structure module is transported to a mounting position through a transport vehicle; and the relative positions between the bolt holes and the foundation bolts are checked, the module is lowered slowly through a transport vehicle hydraulic system, whether upper openings of the guiding devices are within the ranges of the bolt holes or not is checked in real time, and the guiding devices are dismounted after the steel-structure module is mounted in place accurately. By adoption of the method for mounting the steel-structure module in place, chambering of the bolt holes in the steel column base on a field can be avoided, and thus the construction quality is ensured; and slight horizontal movement can be achieved through the guiding devices, the self weight of the module and the horizontal jacking deviation correction device, and thus the purpose of mounting the module in place rapidly and accurately is achieved.

The technological process of making wing type centrifugal vane wheel includes the steps of: making the profile with single layer of boss and planar, arc or conic surface in ribbed hollow aluminum section bar with unequal wall thickness and wing, forming slots on the flat front and back disc and arc or conic front disc, inserting, bending and connecting to form vane wheel. The technological process has no welding and no limitation in vane number, and the produced vane wheel has high efficiency, low noise, small size and low cost.

The invention relates to a prefabricated reinforced concrete column connection structure and method. The idea of equivalent cast-in-place is adopted, based on mechanical optimization analysis, a method connecting to the middle of a column is proposed, shape steel in the column is connected by a shape steel sleeve instead of welding and bolt connection commonly used in engineering, and the construction is simplified; rebars in the column are connected by a mechanical sleeve instead of a grouting sleeve often used in the assembled reinforced concrete structure, and the cost is reduced; the connection part is covered with a steel plate tube and no stirrups are arranged, and the construction is simplified; a hole is reserved in a prefabricated reinforced concrete column at the upper part of the connection part; and after installation of the steel plate tube is completed, high-performance engineering cement-based composite materials (ECC) can be poured to further ensure the integral strength and deformation capacity of the connection part. The prefabricated reinforced concrete column connection structure has high assembly property, the assembly mode is basically a bolt connection with convenient construction, on-site welding and large-area concrete pouring operation are avoided, and the construction is convenient. At the same time, the prefabricated reinforced concrete column connection structure and method is based on the idea of equivalent cast-in-place, and the strength and deformation capability of the connection part can be effectively guaranteed.

The method improves capability of technique for packing tranditional photoelectric chip for example chip of optical sensor. Photoelectric chip is bonded on prearranged position of transparent base plate (such as glass base plate), where there is circuit layout. A joining pad connects the photoelectric chip to the transparent base plate at the prearranged place. After an existed sealed hollow interlayer is detected, then structure of each chip is cut to each simple piece, which is assembled to module according to specification. Being different to traditional encapsulation, the invention raises rate of good product, and saves material.

The invention discloses an assembling integrated support hanger and connecting pieces thereof. The assembling integrated support hanger structurally comprises a base, an upright column, a crossbeam, a first connecting piece and a second connecting piece; the upright column is made of C-type steel, and the crossbeam is made of H-type steel; connecting holes are respectively formed in the base, the two ends of the upright column and the two ends of the crossbeam. Aiming at the special structure of the H-type beam, the first connecting piece is shaped like a T-shaped structure when being connected with the upright column and the crossbeam, and aiming at the stability of a central upright column, the second connecting piece is in a trapezoidal structure when being connected with the upright column and the crossbeam. The assembling integrated support hanger provided by the invention adopts special connecting pieces, namely T-shaped and trapezoidal connecting pieces, aiming at different stress requirements of different structures, so that the stability degree of the support hanger is improved while the mounting is facilitated as well, the stress is reliable, and the construction is safe.

The invention discloses a detachable supporting hanging frame which structurally comprises a vertical column, a cross beam, a first connector, a second connector and a supporting connector, wherein the vertical column and the cross beam are both made of C-shaped steel; connecting holes are formed in the two ends of the vertical column and the cross beam; a connecting hole is formed in the supporting connector; the first connector comprises a first component; the cross section of the first connector is T-shaped; the first component comprises a cross edge and a bent edge; the second connector comprises a first fixed edge, a second fixed edge and a third fixed edge; the second connector has an integrated structure; the first and second connectors are used for meeting different structure and stress demands; the mounting is convenient while the stable degree of the supporting hanging frame is increased; the force bearing is reliable; the construction is safe.

The invention relates to a fixing device for a loop laying tube of a loop laying machine. The fixing device is characterized by comprising a loop laying head body, the loop laying tube, tube clamps and a fixing assembly, wherein the loop laying tube is arranged at the loop laying head body according to Archimedes spiral; the tube clamps are arranged on the loop laying tube and the loop laying head body; the fixing assembly is used for fixing the tube clamps and the loop laying head body and comprises fixing pins and bolts, the fixing pins are arranged in pin holes of the tube clamps and the loop laying head body, and the bolts are arranged in the fixing pins. The fixing device can prevent bump between the tube clamps of the loop laying head and a protection cover, protects the tube clamps of the loop laying head from wearing, guarantees stable dynamic balance of the loop laying head and reduces vibration of the loop laying head greatly.

The invention discloses a plug structure for bedding. The plug structure comprises a column 1 and a cross bar connected with the column, and the column and the cross bar are connected through a connector 8 which comprises a cylinder 21 and a clamped hook body 22, wherein the clamped hook body comprises a hook-shaped part hooked at the column and a straight-edge part clamped at one side of the column; a cylinder port at the other side of the cylinder is formed with an internally retracted outer edge; and the cross bar is connected at the outer edge. The invention further provides basic forms of single-layer beds or bunk beds and apartment beds based on the above connecting structure. The bedding provided by the invention is beautiful, simple, firm, durable, green, and environmentally friendly. By using a stamping process, a welding process is omitted and production cost is reduced; and by using a component connecting form such as inserting and combining, size is reduced and transportation and installation are facilitated.

The invention discloses a double-decker bed based on a plug-in type guardrail. The double-decker bed comprises a vertical post (1) as well as an upper and a lower layer bed surrounded by beams, wherein the upper layer bed is provided with a ladder stand (3); one outer side in the length direction of the upper layer bed is provided with an upper layer bed guardrail; the upper layer bed guardrail comprises a vertical rod (12) and an outer handrail (4); the outer handrail comprises a horizontal straight rod part and an arc-shaped connection rod part; the external end of the horizontal straight rod part is connected to the vertical post (1) by a connecting piece (8); and the arc-shaped connection rod part is connected to the lower beam (2) by an intermediate unit (11). The bed disclosed by the invention has the following characteristics of beauty, simplicity, fastness, endurance and environment friendliness. With the adoption of a stamping technique, the welding process is omitted, so that the production cost is reduced; and with the adoption of an insertion and combination part connection mode, the volume is reduced, and the bed is convenient to transport and mount.

The invention relates to the field of support and hanger shells, in particular to a support and hanger shell convenient to disassemble. The support and hanger shell convenient to disassemble comprises a support and hanger shell body. The support and hanger shell body is composed of an upper shell body and a lower shell body. A top plate is arranged at the top end of the upper shell body. Protruding blocks are arranged on the bottom surface of the top plate, and the tail ends of the protruding blocks extend into the upper shell body. Sliding blocks are arranged at the tail end of the upper shell body and slidably connected in sliding grooves of the lower shell body. Grooves are formed in the upper surface of the lower shell body and communicate with the sliding grooves. A through hole is formed in the bottom surface of the lower shell body. By adding the sliding blocks and the sliding grooves, the sliding blocks enter the sliding grooves through the grooves, and thus the upper shell body and the lower shell body can be fixedly connected; if the upper shell body and the lower shell body need to be separated, the sliding blocks only need to be separated from the sliding grooves and lifted out from the grooves; and in this way, the welding process is avoided, the cost is reduced, installing of the support and hanger shell is facilitated, and support and hanger internal maintenance is also facilitated.

The invention relates to a redistribution device structure of a heat exchanger. The structure is characterized by comprising a redistribution device arranged in a channel of the heat exchanger; the redistribution device comprises a connection sleeve accommodated in an inlet flange of the channel, the lower end of the connection sleeve is connected to a redistribution barrel, and the outer side wall of the connection sleeve is provided with a convex edge connected to the inlet flange; a plurality of baffles are arranged in the connection sleeve, first ends of the baffles are connected to the upper end edge of the redistribution barrel, second ends of the baffles are connected, and gaps are formed between adjacent baffles; the redistribution barrel is located in the inner cavity of the channel, and the wall of the redistribution barrel is provided with a plurality of discharge holes communicated with the inner cavity of the channel. The welding procedure is avoided, the integrity and anti-corrosion properties of the inner wall of the channel can be guaranteed, and the heat process of the channel is facilitated; meanwhile, the redistribution device can be detached and installed conveniently, by means of the secondary flow mixing of the baffles and redistribution barrel, the gas-liquid phase mixing effect is better, and the pressure drop is reduced.

The invention discloses a method for preparing a 3D printing resistor and adjusting the resistance value. The method comprises the following steps of: firstly, preliminarily designing the graphic size of the printed resistor according to information including the distance between electrodes, the space size and the required target resistance value, secondly, calculating the sheet resistance value or the resistivity of a material needing to be printed, and screening printed resistor slurry or printing ink; generating a printing path file of the resistor; fixing the base material on a printer base table, adjusting printing parameters, and completing resistor printing; after the printed resistor is cured and sintered, testing the resistor, comparing with a target resistance value, and if the target resistance value design is met, finishing printing; and if not, adjusting the resistance value by adopting an optimized design pattern size or printing parameters, or adjusting the resistance value on the basis of the printed and cured resistor. According to the invention, screen plate manufacturing and material waste in a traditional silk-screen printing process can be avoided, in addition, the resistor pattern and the resistor thickness can be flexibly adjusted, and the problem that the thickness is difficult to accurately adjust in silk-screen printing is avoided.

The invention discloses a preparation process of a liquefied petroleum gas bottle upper cover and a product thereof. The preparation process of the liquefied petroleum gas bottle upper cover comprisesthe following steps of A, blank pretreatment, B, performing blank extrusion forming, and C, carrying out rough blank finishing treatment on the cover body. The liquefied petroleum gas bottle upper cover comprises a cover body and a valve seat, the cover body and the valve seat are made of an extrusion method, the cover body and the valve seat are integrally formed, a through hole is formed in thecenter of the valve seat, and threads are arranged on the through hole. The valve seat and the upper cover are integrally formed, so that the welding process of a traditional gas cylinder is avoided,the number and the length of the welding seam of the whole gas cylinder are reduced, and the using safety of the gas cylinder is improved; in the extrusion forming process of the cover body, the metal material and the inner wall of an extrusion cylinder do not slide relative to each other, the metal flowing in the extrusion process is uniform, and compared with a traditional stamping method, thesize precision of the part is high, and the structure is more compact; compared with the prior art, the manufacturing process is reduced, the production processing efficiency is improved, and the production cost is reduced.

The invention discloses a corner connecting piece special for a solar photovoltaic support. The corner connecting piece comprises a base and a stand column. The base is an integral part and comprises a base plate and parallel lateral plates arranged on the two sides of the base plate respectively, the lateral plates are perpendicular to the base plate, and the lateral plates are isosceles-triangle-shaped parts. The stand column is a groove-shaped part and located between the two lateral plates, one end of the stand column is connected with the base through a bolt to form a whole, and the bolt penetrates through the top ends of the two lateral plates and the two sides of the stand column to enable the stand column and the base to be connected into the whole. Supporting plates are arranged on the two lateral plates respectively and located on the center line of the base plate, one end of each supporting plate is connected with the base plate, and the other end of each supporting plate is connected with the top end of the corresponding lateral plate. The corner connecting piece is convenient to use, and adjustment at any angel ranging from 0 degree to 180 degrees can be achieved.

The invention discloses a bridge deck rabbet wet joint connecting structure and a construction method thereof, two adjacent prefabricated concrete beams are connected through a reserved UHPC wet joint, and ultra-high performance concrete is poured in the UHPC wet joint; a prestressed duct is reserved in a flange plate of the prefabricated concrete beam, a prestressed steel strand is arranged in the prestressed duct, and clamping piece anchorage devices are embedded in the two sides of the prestressed duct. The method has the characteristics of easiness in industrialized production, small field pouring amount, high construction speed, high wet joint quality, small influence on construction field traffic and surrounding environment and the like.

The invention provides a gyration device and a lorry-mounted crane. The gyration device comprises a gear shaft, a base and a gyration stand column, wherein the base and the gear shaft are of an integral casting structure; the gyration stand column is welded to the base; and the gear shaft is used for driving the gyration stand column to rotate. In the gyration device, the gear shaft and the base are an integral-forming integral casting, a welding working procedure between the gear shaft and the base is avoided, processing is convenient, and stability is good when the integral casting drives the gyration stand column to rotate.

The invention provides a conductive copper water jacket which is used on a metallurgical furnace or a high temperature furnace. The conductive copper water jacket comprises a copper base body, a cooling water channel, a water inlet pipe and a water outlet pipe, wherein the cooling water channel is arranged inside the copper base body; the water inlet pipe and the water outlet pipe are communicated with the cooling water channel; and the cooling water channel, the water inlet pipe, the water outlet pipe and the copper base body are of an integrated overall structure. The procedure of welding the water inlet pipe, the water outlet pipe, the cooling water channel and the copper base body is avoided; the problem of welding leakage is prevented; the cooling water channel is shaped at a time; the cooling water is directly contacted with the copper base body; the cooling effect is improved; the service life of the water jacket is prolonged; as the copper base body is doped with phosphorus, magnesium, arsenic and yttrium, the density of the copper base body is increased effectively, the copper crystallization is finned, and the electric conductivity and the heat-conducting property of the copper are increased.

A binary band switch comprises the following parts of a housing, a code disc assembly mounted on the bottom of the housing, an upper cover mounted on the upper portion of the housing, a gear assemblyextending through the upper cover and partially extending into the housing, a ball mounting hole disposed on the side of the housing, a detent ball disposed in the ball mounting hole and cooperating with the gear assembly for gear rotation, a detent shrapnel mounted in the housing and used for providing elastic force when selecting gears, and a shrapnel assembly disposed above the code disc assembly, wherein the lower part of the gear assembly is coupled to the shrapnel assembly and configured to drive the shrapnel assembly to frictionally rotate on the code disc assembly. In the binary band switch, the code disc assembly is located downwardly in a fixed structure and the shrapnel assembly is located upwardly as a rotating mechanism, which avoids the welding shrapnel process; and the shrapnel piece adopts an integrated shrapnel, which avoids the error of artificial assembly and improves the product consistency.