Unlock instant, AI-driven research and patent intelligence for your innovation.
Solder paste for brushing and its preparation process and application method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A solder paste and brushing technology, applied in manufacturing tools, welding equipment, metal processing equipment, etc., can solve problems such as insufficient strength, clogging of metal orifices, affecting product quality and reliability, and achieve cost savings, bonding Strong and consistent effect, simple preparation process
Active Publication Date: 2017-11-14
马鞍山六菱科技有限公司
View PDF9 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the brazing connection method has high requirements for the implementation of the process. The currently used brazing connection does not have an ideal solder paste and brazing method, which is prone to problems such as insufficient strength after welding and blockage of the metal orifice plate, which affects the quality and reliability of the product. sex
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0027] The brazing filler metal paste that this brushing is used, the composition that it comprises and respective parts by weight are as follows:
[0028] 30.5 parts of water-based binder
[0029] BN 2 Solder powder 36 parts
[0030] 33.5 parts of water.
[0031] Metal and alloy powder wherein mainly adopt nickel base, copper base brazing material, adopt BNi in the present embodiment 2 Brazingfiller metal powder, its main components are calculated by weight percentage: Cr 7.0%, B 3%, Si 4.5%, Fe3%, C 0.04%, P 0.01%, Ni balance. The brazing temperature of the solder powder is 1010-1175°C.
[0032] The average particle size of the metal and alloy powder in this embodiment is 140-325 mesh, wherein the water-based binder adopts Cememt 650 adhesive has a viscosity of 275-350CPS at 25°C, CPS is the viscosity unit, 1CPS=1mpa˙s.
Embodiment 2
[0034] The brazing filler metal paste that this brushing is used, the composition that it comprises and respective parts by weight are as follows:
[0035] 20 parts of water-based binder
[0036] BN 2 Solder powder 30 parts
[0037] 20 parts of water.
[0038] Metal and alloy powder wherein mainly adopt nickel base, copper base brazing material, adopt BNi in the present embodiment 2 Brazing filler metal powder, its main components are calculated by weight percentage: Cr 6.0%, B 2.75%, Si 4.0%, Fe 2.5%, C 0.02%, P0.015%, Ni balance. The brazing temperature of the solder powder is 1010-1175°C.
[0039] The average particle size of the metal and alloy powder in this embodiment is 140-325 mesh, wherein the water-based binder adopts Cememt 650 adhesive has a viscosity of 275-350 CPS at 25°C.
Embodiment 3
[0041] The brazing filler metal paste that this brushing is used, the composition that it comprises and respective parts by weight are as follows:
[0042] 35 parts of water-based binder
[0043] BN 2 40 parts solder powder
[0044] 40 parts of water.
[0045] Metal and alloy powder wherein mainly adopt nickel base, copper base brazing material, adopt BNi in the present embodiment 2 The brazing filler metal powder, its main composition by weight percentage is: Cr 8.0%, B 3.5%, Si 5.0%, Fe 3.5%, C 0.06%, P0.02%, Ni balance. The brazing temperature of the solder powder is 1010-1175°C.
[0046] The average particle size of the metal and alloy powder in this embodiment is 140-325 mesh, wherein the water-based binder adopts Cememt 650 adhesive has a viscosity of 275-350 CPS at 25°C.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Property
Measurement
Unit
particle size
aaaaa
aaaaa
strength
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a braze cream for brushing. The braze cream for brushing includes, by weight, 20-35 parts of water-based binders, 30-40 parts of metal or alloypowder, and 20-40 parts of water. The invention further provides a preparation technology of the braze cream. The method includes the steps that the water-based binders, the metal or alloypowder and the water are prepared by weight; the water-based binders and the water are poured into a container and are evenly stirred; and the metal or alloypowder is added to the mixture and stirred evenly, and the mixture is vacuumized for a standby. A use method of the braze cream includes the steps that a plane to be brazed is coated with a layer of braze cream, and the braze cream is scraped flat with a scraper blade and is dried in a drying box or in air, so that an intermedium to be brazed is obtained; and the intermedium to be brazed and a connecting piece are assembled and brazed in a vacuum or furnace atmosphere so as to be integrated. By means of the braze cream, brazing materials do not block holes, binding intensity is high, and binding is consistent. The preparation technology is simple and cost is reduced. By means of the special implementation method, the advantages of the braze cream can be further brought into play.
Description
technical field [0001] The invention relates to the technical field of brazing, in particular to a solder paste for brushing, a preparation process and a use method thereof. Background technique [0002] Metalhoneycomb panels are widely used in aircraft, trains, ships, construction and other fields due to their light weight, high strength, high rigidity, good stability, and heat and sound insulation. In recent years, the structure composed of metal honeycomb and metal orifice plate has been widely used in aircraft ground testing. The connection methods currently used in this structure mainly include adhesive connection and brazing connection. The adhesive connection method has been widely used because of its simple operation. However, its strength, service life and allowable working environment are largely affected by the properties of the adhesive, such as the uniformity of glue application, the blocking of the glue on the metal orifice plate, the aging of the glue, etc....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More