CN109235768B - Manufacturing method of screw-free and welding-free steel structure - Google Patents
Manufacturing method of screw-free and welding-free steel structure Download PDFInfo
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- CN109235768B CN109235768B CN201811378414.2A CN201811378414A CN109235768B CN 109235768 B CN109235768 B CN 109235768B CN 201811378414 A CN201811378414 A CN 201811378414A CN 109235768 B CN109235768 B CN 109235768B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/08—Soldering by means of dipping in molten solder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/34—Electroplating: Baths therefor from solutions of lead
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/022—Electroplating of selected surface areas using masking means
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
Abstract
The invention discloses a method for manufacturing a screwless and weldless steel structure, which consists of three parts, wherein the first part is a steel substrate which is formed by respectively machining penetrating grooves with the width equal to the side length of a square section and the depth of total thickness of 1/5-1/4 on the upper surface and the lower surface of two ends of a square columnar steel beam, the second part is a lead layer plated on the partial electroplating of a groove region, and the third part is potassium silicate hydrogel: sodium fluosilicate: silica micropowder: tetrahydrofuran is mixed according to the mass ratio of 100: (1-1.2): (25-30): (2-4) blending the obtained acid-resistant daub, and mixing 10% diluted hydrochloric acid with the mass ratio of 10% -12% into the daub to obtain the acid-storage daub, wherein the acid-storage daub is fixed on the surface of the lead layer. The steel structure of the invention can be directly lapped, is self-diffused, has good stability, increases the strength of the joint along with the time extension and is convenient to install.
Description
Technical Field
The invention relates to the field of steel structures, in particular to a method for manufacturing a screwless and weldless steel structure.
Background
Conventional riveting is generally used as carpentry and never applied in steel structures.
As a common connection mode in machining, the riveting device is mainly used for punching holes in the parts of two plates with small thickness, then placing rivets in the holes, and then extruding the rivets by using a die to deform so as to achieve the purpose of riveting. Usually, the connecting edges of the box body or the shell-shaped parts are connected by rivets. Due to the limitation of the inner cavity space, the riveting punch used for extruding the rivet is mostly placed outside the part at present, namely the head of the rivet is directly extruded, so that the rivet head is easily deformed, the riveting surface is uneven, and the riveting quality is seriously affected. However, in the steel structure, because the steel has high strength and the surface is easily oxidized, riveting is often difficult to realize, and especially after two metal plates are lapped, a galvanic cell effect is easily formed to accelerate corrosion, so that the joint strength is reduced and deformed, and the structure fails.
However, in the related patents applied in China at present, no prior art specially aiming at simple lap joint self-curing exists, so that a steel structure which can be directly lapped, is self-diffused, has good stability, is increased in joint strength along with the time extension and is convenient to install and a manufacturing method thereof are needed in the market.
Disclosure of Invention
The invention aims to provide a manufacturing method of a steel structure, which can be directly lapped and has self-diffusion, good stability, increased joint strength along with time extension and convenient installation.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for manufacturing a screwless and weldless steel structure comprises the following steps:
1) preparation before manufacture
Preparing raw materials: preparing enough square columnar steel beams, enough hydrochloric acid solution with the mass fraction of 10%, enough potassium silicate hydrogel with the modulus of 2.6-3.0, enough sodium fluosilicate, enough silicon dioxide micro powder, enough tetrahydrofuran and enough pure lead plates;
preparing equipment: preparing an electroplating lead tank and an oxyhydrogen flame injection device;
2) steel substrate preparation
Machining the upper surface and the lower surface of the two ends of the square columnar steel beam prepared in the step 1) respectively to form penetrating grooves with the width equal to the side length of the square section and the depth of 1/5-1/4 of the total thickness to obtain a prefabricated steel beam;
secondly, the pure lead plate prepared in the step 1) is used as a raw material, the electrolytic lead plating groove prepared in the step 1) is used as equipment, after the non-groove area of the prefabricated steel beam obtained in the step 1 is protected, electrolytic lead plating treatment is carried out on the groove area, then the protection is removed, and the steel beam solidified with the electrolytic lead plating layer is obtained, and is the required steel substrate;
3) preparation of protective functional coating
Preparing the potassium silicate hydrogel prepared in the step 1), sodium fluosilicate, silicon dioxide micropowder and tetrahydrofuran, and then taking the potassium silicate hydrogel as a binder, the sodium fluosilicate as a curing agent, the silicon dioxide micropowder as an acid-resistant filler and the tetrahydrofuran as a bonding force promoter according to the mass ratio: sodium fluosilicate: silica micropowder: tetrahydrofuran is 100: (1-1.2): (25-30): (2-4) obtaining the acid-resistant concrete glue after the proportional mixing reaction;
secondly, mixing 10-12% of the mass of the acid-resistant glue into the coagulated acid-resistant glue obtained in the first step into the hydrochloric acid solution prepared in the first step, and uniformly stirring to obtain the cement gum for use, wherein the cement gum for use is the paint with the required protection function;
4) steel beam forming
Coating the protective functional coating obtained in the stage 3) on the groove area of the steel matrix obtained in the stage 2) compactly and completely to obtain a protective coating with the thickness of 1mm-2mm, wherein the steel matrix integrated with the protective coating is the formed steel beam.
The manufacturing method of the steel structure comprises the following steps:
1) steel beam assembling process
Selecting two formed steel beams, and spraying and heating a groove area corresponding to a first formed steel beam with the lower part serving as a substrate to 650-700 ℃ by using an oxyhydrogen flame spraying device, so as to obtain the substrate to be assembled after a protective coating is completely dissolved;
secondly, constructing the groove area corresponding to the rest of the second formed steel beam and the groove area heated in the first step, and then spraying and heating the constructed area to the temperature of 650-700 ℃ by adopting an oxyhydrogen flame spraying device;
2) building frame
And repeating the operation stage 1) until a frame with the design requirement is built, namely completing the whole process of the manufacturing method of the screw-free and welding-free steel structure.
In the manufacturing method of the screwless and weldless steel structure, the penetrating groove with the width equal to the side length of the square section and the depth of total thickness 1/5-1/4 is machined, and specifically the groove is punched on the steel channel beam.
In the manufacturing method of the screwless and weldless steel structure, the main binding force promoting component in the bath solution for electroplating lead treatment on the groove area is sodium fluosilicate.
Compared with the prior art, the invention has the following advantages: (1) the invention is specially used for strengthening construction of a simple frame, and is mainly applied to building of a long-term remaining structure after disaster relief reconstruction, so that the building is simple, is similar to building of building blocks, is simple and easy to realize, and has high strength, long remaining time and high cost performance. (2) The angle of the axial line of the groove and the steel beam is not limited, so that the invention has various implementation modes, for example, a honeycomb structure can be built when the axial line of the groove and the steel beam forms an angle of 60 degrees, a roof can be built when the axial line of the groove and the steel beam forms an angle of 30 degrees, various combinations are realized, and the invention is beneficial to the standardization and is applied to the building of any structure with the requirements of quick speed, high safety and high reliability. (3) The important innovation point of the invention is that the core area solidification of the building construction is realized by using lead plating which is rarely applied in the prior art, specifically, the characteristics of low melting point, high lubrication and high diffusivity of lead and prevention of further corrosion due to medium-speed oxidation in air are utilized, and the lubrication, the solidification (low melting point fusion welding), the diffusion enhancement (mutual diffusion of lead) after splicing and the auxiliary corrosion prevention of overflow lead liquid are realized in the construction process (because the chemical activity of lead is slightly higher than that of iron, the lead is preferentially corroded but not accelerated too much, an oxide film is easily generated on the surface of the lead, and the electrochemical corrosion is difficult to continue). (4) The protective function coating specially prepared by the invention is essentially acid-resistant daub containing inorganic acid, when the steel beam is not used, the daub body is melted at high temperature, acid liquid is atomized, and the surface of a lead layer is further acid-etched, so that on one hand, oxidation points are removed, on the other hand, the surface of lead is activated, and on the other hand, the atomized acid liquid basically cannot form hydrogen embrittlement source to invade the steel matrix separating the lead layer at high temperature, so that the chemical function of the lead can be realized. (5) The width of all the ditches of the invention is consistent with the width of the steel beam, the standardized production is very convenient and easy, but the completely consistent size can not be mutually embedded and overlapped, the invention simply achieves three purposes by oxyhydrogen flame heating (softening the daub to release acid mist, melting lead liquid, and increasing the size of the groove after one party is integrally expanded), the embedding of the second steel beam at normal temperature into the first steel beam after high temperature expansion is realized, then the lead liquid at two sides is fully diffused and combined by reheating and repeated welding processes, the joint strength is increased, and the joint can be diffused and deepened along with the prolonging of time due to the relation between the steel and the lead, the influence of gravity and the influence of interference stress caused by the cooling of the joint to the normal temperature, thereby realizing the technical effect of strengthening and increasing along with the prolonging of time. Therefore, the steel structure has the characteristics of direct lap joint, self-diffusion, good stability, joint strength increase along with time extension and convenient installation.
Drawings
FIG. 1 is a schematic view of the construction of a steel beam according to the present invention;
in the figure: protective coating 1, lead-plated layer 2, steel substrate 3.
Detailed Description
Example 1:
the manufacturing method of the screwless and weldless steel structure shown in figure 1 is characterized by comprising the following steps:
1) preparation before manufacture
Preparing raw materials: preparing enough square columnar steel beams, enough hydrochloric acid solution with the mass fraction of 10%, enough potassium silicate hydrogel with the modulus of 3.0, enough sodium fluosilicate, enough silicon dioxide micro powder, enough tetrahydrofuran and enough pure lead plates;
preparing equipment: preparing an electroplating lead tank and an oxyhydrogen flame injection device;
2) preparation of the Steel substrate 3
Punching penetrating grooves with the width equal to the side length of a square section and the depth of 1/4 of the total thickness on the upper surface and the lower surface of the two ends of the square columnar steel beam prepared in the step 1) respectively to obtain a prefabricated steel beam;
secondly, the pure lead plate prepared in the step 1) is used as a raw material, the electrolytic lead plating groove prepared in the step 1) is used as equipment, sodium fluosilicate is used as a main binding force promoting component, the non-groove area of the prefabricated steel beam obtained in the step I is protected, electrolytic lead plating treatment is carried out on the groove area, then the protection is removed, and the steel beam solidified with the electrolytic lead plating layer 2 is obtained, namely the required steel substrate 3;
3) preparation of protective functional coating
Preparing the potassium silicate hydrogel prepared in the step 1), sodium fluosilicate, silicon dioxide micropowder and tetrahydrofuran, and then taking the potassium silicate hydrogel as a binder, the sodium fluosilicate as a curing agent, the silicon dioxide micropowder as an acid-resistant filler and the tetrahydrofuran as a bonding force promoter according to the mass ratio: sodium fluosilicate: silica micropowder: tetrahydrofuran is 100: (1.2): (30): (4) the acid-resistant glue is obtained after the reaction of the components in proportion;
secondly, mixing the coagulated acid-resistant glue obtained in the step I into the hydrochloric acid solution prepared in the step I) according to 12% of the mass of the acid-resistant glue, and uniformly stirring to obtain the cement gum to be used, wherein the cement gum to be used is the paint with the required protection function;
4) steel beam forming
Coating the protective functional coating obtained in the stage 3) on the groove area of the steel matrix 3 obtained in the stage 2) compactly and completely, and coating the protective coating with the thickness of 2mm to obtain a protective coating 1, wherein the steel matrix 3 integrated with the protective coating 1 is a formed steel beam;
5) steel beam assembling process
Firstly, selecting the formed steel beams obtained in the two stages 4), and carrying out spraying and heating on the first formed steel beam which is used as a substrate below and corresponds to a groove area by adopting the stage 1) and the oxyhydrogen flame spraying device prepared in the second step to the temperature of 680-700 ℃, and obtaining the substrate to be assembled after the protective coating is completely melted;
secondly, constructing the groove area corresponding to the rest of the second formed steel beam and the groove area heated in the first step, and then spraying and heating the constructed area to 680-700 ℃ by adopting the oxyhydrogen flame spraying device prepared in the step 1) and the second step;
6) building frame
And repeating the operation stage 5) until a frame with the design requirement is built, namely completing the whole process of the manufacturing method of the screw-free and welding-free steel structure.
Example 2:
the whole is in accordance with example 1, with the difference that:
1) preparation before manufacture
Preparing raw materials: preparing enough square columnar steel beams, enough hydrochloric acid solution with the mass fraction of 10%, enough potassium silicate hydrogel with the modulus of 2.6, enough sodium fluosilicate, enough silicon dioxide micro powder, enough tetrahydrofuran and enough pure lead plates;
2) preparation of the Steel substrate 3
Punching penetrating grooves with the width equal to the side length of a square section and the depth of 1/5 of the total thickness on the upper surface and the lower surface of the two ends of the square columnar steel beam prepared in the step 1) respectively to obtain a prefabricated steel beam;
3) preparation of protective functional coating
Preparing the potassium silicate hydrogel prepared in the step 1), sodium fluosilicate, silicon dioxide micropowder and tetrahydrofuran, and then taking the potassium silicate hydrogel as a binder, the sodium fluosilicate as a curing agent, the silicon dioxide micropowder as an acid-resistant filler and the tetrahydrofuran as a bonding force promoter according to the mass ratio: sodium fluosilicate: silica micropowder: tetrahydrofuran is 100: (1): (25): (2) the acid-resistant glue is obtained after the reaction of the components in proportion;
secondly, mixing the acid-resistant glue obtained in the step I with hydrochloric acid solution prepared in the step 1) according to 10% of the mass of the acid-resistant glue, and uniformly stirring to obtain the cement gum to be used, wherein the cement gum to be used is the paint with the required protection function;
4) steel beam forming
Coating the protective functional coating obtained in the stage 3) on the groove area of the steel matrix 3 obtained in the stage 2) compactly and completely, and coating the protective coating 1 with the thickness of 1mm to obtain a protective coating 1, wherein the steel matrix 3 integrated with the protective coating 1 is a formed steel beam;
5) steel beam assembling process
Firstly, selecting the formed steel beams obtained in the two stages 4), and carrying out spraying and heating on the first formed steel beam which is used as a substrate below and corresponds to a groove area by adopting the stage 1) and the oxyhydrogen flame spraying device prepared in the second step to the temperature of 650-670 ℃, and obtaining the substrate to be assembled after the protective coating is completely melted;
secondly, constructing the groove area corresponding to the rest of the second formed steel beam and the groove area heated in the first step, and then spraying and heating the constructed area to the temperature of 650-670 ℃ by adopting the oxyhydrogen flame spraying device prepared in the step 1) and the step two;
the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A manufacturing method of a screwless and weldless steel structure is characterized by comprising the following steps:
1) preparation before manufacture
Preparing raw materials: preparing enough square columnar steel beams, enough hydrochloric acid solution with the mass fraction of 10%, enough potassium silicate hydrogel with the modulus of 2.6-3.0, enough sodium fluosilicate, enough silicon dioxide micro powder, enough tetrahydrofuran and enough pure lead plates;
preparing equipment: preparing an electroplating lead tank and an oxyhydrogen flame injection device;
2) preparation of the Steel substrate (3)
Machining the upper surface and the lower surface of the two ends of the square columnar steel beam prepared in the step 1) respectively to form penetrating grooves with the width equal to the side length of the square section and the depth of 1/5-1/4 of the total thickness to obtain a prefabricated steel beam;
secondly, the pure lead plate prepared in the step I of the step 1) is used as a raw material, the electrolytic lead plating groove prepared in the step II of the step 1) is used as equipment, after the non-groove area of the prefabricated steel beam obtained in the step I is protected, electrolytic lead plating treatment is carried out on the groove area, then the protection is removed, and the steel beam solidified with the electrolytic lead plating layer (2) is obtained, and is the required steel substrate (3);
3) preparation of protective functional coating
Preparing the potassium silicate hydrogel prepared in the step 1), sodium fluosilicate, silicon dioxide micropowder and tetrahydrofuran, and then taking the potassium silicate hydrogel as a binder, the sodium fluosilicate as a curing agent, the silicon dioxide micropowder as an acid-resistant filler and the tetrahydrofuran as a bonding force promoter according to the mass ratio: sodium fluosilicate: silica micropowder: tetrahydrofuran is 100: (1-1.2): (25-30): (2-4) obtaining the acid-resistant concrete glue after the proportional mixing reaction;
secondly, mixing 10-12% of the mass of the acid-resistant glue into the coagulated acid-resistant glue obtained in the first step into the hydrochloric acid solution prepared in the first step, and uniformly stirring to obtain the cement gum for use, wherein the cement gum for use is the paint with the required protection function;
4) steel beam forming
Compactly and completely coating the protective functional coating obtained in the stage 3) on the groove area of the steel substrate (3) obtained in the stage 2) to obtain a protective coating (1) with the thickness of 1-2 mm, wherein the steel substrate (3) integrated with the protective coating (1) is a formed steel beam;
the manufacturing method of the steel structure comprises the following steps:
1) steel beam assembling process
Selecting two formed steel beams, and spraying and heating a groove area corresponding to a first formed steel beam with the lower part serving as a substrate to 650-700 ℃ by using an oxyhydrogen flame spraying device, so as to obtain the substrate to be assembled after a protective coating is completely dissolved;
secondly, constructing the groove area corresponding to the rest of the second formed steel beam and the groove area heated in the first step, and then spraying and heating the constructed area to the temperature of 650-700 ℃ by adopting an oxyhydrogen flame spraying device;
2) building frame
And repeating the operation stage 1) until a frame with the design requirement is built, namely completing the whole process of the manufacturing method of the screw-free and welding-free steel structure.
2. The method of manufacturing a screwless, weldless steel structure as claimed in claim 1, wherein: and machining a penetrating groove with the width equal to the side length of the square section and the depth of total thickness 1/5-1/4, specifically, punching the groove on the steel beam of the channel steel.
3. The method of manufacturing a screwless, weldless steel structure as claimed in claim 1, wherein: in the bath solution for electroplating the groove area with lead, the main binding force promoting component is sodium fluosilicate.
Priority Applications (1)
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| CN201811378414.2A CN109235768B (en) | 2018-11-19 | 2018-11-19 | Manufacturing method of screw-free and welding-free steel structure |
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| CN201811378414.2A CN109235768B (en) | 2018-11-19 | 2018-11-19 | Manufacturing method of screw-free and welding-free steel structure |
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| CN109235768B true CN109235768B (en) | 2020-08-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188560A (en) * | 1982-04-30 | 1983-11-04 | Furukawa Electric Co Ltd:The | Connection method of metallic foil |
| CN1052280A (en) * | 1989-11-27 | 1991-06-19 | 钱泰乙 | Metal plate reinforced concrete is made and is used |
| CN1615203A (en) * | 2001-11-21 | 2005-05-11 | 达纳加拿大公司 | Improvements in fluxless brazing |
| CN101152679A (en) * | 2006-09-27 | 2008-04-02 | 明安国际企业股份有限公司 | Method for joining golf club head |
| CN103907179A (en) * | 2011-10-26 | 2014-07-02 | 日立化成株式会社 | Reflow film, solder bump formation method, solder joint formation method, and semiconductor device |
-
2018
- 2018-11-19 CN CN201811378414.2A patent/CN109235768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188560A (en) * | 1982-04-30 | 1983-11-04 | Furukawa Electric Co Ltd:The | Connection method of metallic foil |
| CN1052280A (en) * | 1989-11-27 | 1991-06-19 | 钱泰乙 | Metal plate reinforced concrete is made and is used |
| CN1615203A (en) * | 2001-11-21 | 2005-05-11 | 达纳加拿大公司 | Improvements in fluxless brazing |
| CN101152679A (en) * | 2006-09-27 | 2008-04-02 | 明安国际企业股份有限公司 | Method for joining golf club head |
| CN103907179A (en) * | 2011-10-26 | 2014-07-02 | 日立化成株式会社 | Reflow film, solder bump formation method, solder joint formation method, and semiconductor device |
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|---|---|
| CN109235768A (en) | 2019-01-18 |
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