CN212470273U - Flux-cored wire with sufficient metallurgical reaction of welding pool - Google Patents
Flux-cored wire with sufficient metallurgical reaction of welding pool Download PDFInfo
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- CN212470273U CN212470273U CN202021222179.2U CN202021222179U CN212470273U CN 212470273 U CN212470273 U CN 212470273U CN 202021222179 U CN202021222179 U CN 202021222179U CN 212470273 U CN212470273 U CN 212470273U
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- extension part
- flux
- welding
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- tail
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Abstract
The utility model belongs to the technical field of welding material, a flux-cored wire that welding bath metallurgical reaction is abundant is related to. The welding wire comprises a sheath and a flux core, wherein on a cross section perpendicular to the length of the welding wire, the sheath extends from a head part to a tail part in the horizontal direction for a section to form a first extension part, then a flux core wrapping part is wound to be closed with the tail part of the first extension part, then the lower part of the first extension part extends from the tail part to the head part of the first extension part along the tail part of the first extension part in a reverse direction to form a second extension part, and after the sheath is folded for 180 degrees, the sheath is tightly attached to the upper part of the first extension part and extends from the head part to the tail; the medicated core is filled in the medicated core wrapping part. The utility model discloses avoided the phenomenon that the powder leaked in transportation and use, increased the dwell time of liquid molten bath when the welding, molten bath metallurgical reaction is abundant, has avoided alloying element's loss, has improved the comprehensive properties of welding seam.
Description
Technical Field
The utility model belongs to the technical field of welding material, concretely relates to abundant flux cored wire of welding bath metallurgical reaction.
Background
With the progress of science and technology and the need of industrial development, a welding procedure is required to be carried out when a large number of products are manufactured, and the quality of welding quality and the selection of welding materials have an inseparable relationship. The welding materials most demanded at present are welding rods, welding wires and brazing filler metals, wherein the quantity of the welding wires is very large. The welding wires are divided into solid welding wires and flux-cored welding wires. The flux-cored wire can be designed into the welding wires with different purposes by adjusting the types and the proportion of the powder alloy elements of the flux-cored layer, has the advantages of flexible and changeable formula, capability of realizing automatic welding, welding efficiency which is several times that of common manual electric arc welding, strong practicability and the like, and is very widely applied to the field of welding.
The flux-cored wire used at present has the following problems:
1) except a small amount of seamless tubular flux-cored wires, the common flux-cored wire is a circular flux-cored wire formed by rolling and drawing metal strips coated with powder, but the joint is often not tightly closed, and the phenomenon of powder leakage is easy to occur in the processes of transportation and use.
2) When in welding, the electric arc is a moving heat source, the welding process is a process of rapid melting and rapid cooling solidification, the melting rate of metal particles in the flux core is difficult to ensure, the metallurgical reaction is insufficient, part of metal element particles can be melted into the alloy, and the other part of metal element particles enters into slag, so that the loss of alloy elements is caused on one hand, and the final performance of a welding seam is influenced on the other hand.
Therefore, the improvement and innovation of the flux-cored wire are the technical problems to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flux-cored wire that welding molten bath metallurgical reaction is abundant, solve following technical problem: firstly, how to prevent the leakage of powder in the transportation and use processes of the flux-cored wire prepared by coating powder by a metal strip; secondly, how to keep the liquid molten pool for a long time after the flux core is melted during welding, so that the metallurgical reaction of the molten pool is sufficient, the loss of alloy elements is reduced, and the comprehensive performance of the welding seam is improved.
The utility model adopts the following technical scheme:
a flux-cored wire with sufficient metallurgical reaction of a welding pool comprises a sheath and a flux core.
On a cross section perpendicular to the length of the welding wire, the sheath comprises a first extension part, a flux core wrapping part, a second extension part and a third extension part, the sheath extends from the head part to the tail part in the horizontal direction for a section to form the first extension part, then the sheath is wound to form the flux core wrapping part to be closed with the tail part of the first extension part, then the flux core wrapping part extends from the tail part to the head part of the first extension part along the tail part of the first extension part in a reverse direction to form the second extension part, and the second extension part is folded for 180 degrees and then is tightly attached to the upper part of the first extension part to extend from the head part to the tail part of.
On the cross section vertical to the length of the welding wire, the flux-cored wrapping part is circular.
The drug core is filled in the drug core wrapping part.
The outer skin is formed by winding a metal strip.
The utility model discloses following beneficial technological effect has:
1) the utility model discloses a heterotypic structure has carried out the closure parcel to the medicine core, has avoided taking place the phenomenon that powder leaked in transportation, use.
2) When the outer skin is used as an electrode to be completely melted during welding, the flux core in the flux core wrapping part starts to be melted and generates metallurgical reaction when the flux core wrapping part is melted, when the electric arc caused by the outer skin of the flux core wrapping part moves forwards, the first extension part, the second extension part and the third extension part which are arranged behind the flux core wrapping part still keep the electric arc to be burnt and melted, and the first extension part, the second extension part and the third extension part are integrated with the liquid metal melted by the outer skin of the flux core wrapping part which moves forwards, so that the retention time of a liquid molten pool is prolonged, the partially melted flux core can be continuously melted, the metallurgical reaction of the molten pool is sufficient, the loss of.
Drawings
FIG. 1 is a sectional view of the flux-cored wire vertical to the length direction of the flux-cored wire of the utility model, which has sufficient metallurgical reaction in the welding pool.
Description of reference numerals: 1. a skin; 1-1, a first extension; 1-2, a medicine core wrapping part; 1-3, a second extension; 1-4, a third extension; 2. a medicated core is provided.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in FIG. 1, a flux-cored wire with a sufficient metallurgical reaction of a weld pool comprises a sheath 1 and a flux core 2.
On a cross section perpendicular to the length of the welding wire, the sheath 1 comprises a first extension part 1-1, a flux core wrapping part 1-2, a second extension part 1-3 and a third extension part 1-4, the sheath 1 extends from the head part to the tail part in the horizontal direction for a period to form the first extension part 1-1, then the sheath is wound to form the flux core wrapping part 1-2 to be closed with the tail part of the first extension part 1-1, then the lower part of the first extension part 1-1 extends from the tail part to the head part of the first extension part 1-1 in a reverse direction to form the second extension part 1-3 at the head part of the first extension part 1-1, and the sheath is tightly attached to the upper part of the first extension part 1-1 after being reversely folded for 180 degrees and extends from the head part to the tail part of the first extension part 1-.
The medicine core 2 is filled in the medicine core wrapping part 1-2, and the medicine core 2 is wrapped by the special-shaped outer skin 1 in a sealing way, so that the phenomenon of medicine powder leakage in the transportation and use processes can be avoided.
On the cross section vertical to the length of the welding wire, the flux core wrapping part 1-2 is circular, and the flux core 2 is filled inside.
During welding, the outer skin 1 serving as an electrode is completely melted, when the flux core wrapping part 1-2 is melted, the flux core 2 in the flux core wrapping part starts to melt and generates a metallurgical reaction, when the electric arc caused outside the flux core wrapping part 1-2 moves forward, the first extension part 1-1, the second extension part 1-3 and the third extension part 1-4 behind the flux core wrapping part still cause the electric arc and melt, the liquid state retention time of the partially melted flux core 2 is increased, and the molten pool reaction is sufficient.
The outer skin 1 is formed by winding a metal strip.
Further, the metal strip for making the outer skin may be simple substance of iron, nickel, titanium, copper, aluminum and alloy thereof.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention are all included in the scope of the present invention.
Claims (3)
1. A flux-cored wire with full metallurgical reaction of a welding pool is characterized in that: comprises a skin (1) and a medicine core (2);
on the section vertical to the length of the welding wire, the sheath (1) comprises a first extension part (1-1), a flux core wrapping part (1-2), a second extension part (1-3) and a third extension part (1-4), the outer skin (1) extends from the head part to the tail part in the horizontal direction for a section to form a first extending part (1-1), then a medicine core wrapping part (1-2) is wound to be closed with the tail part of the first extension part (1-1), then the lower part of the first extension part (1-1) reversely extends to the head part of the first extension part (1-1) along the tail part of the first extension part (1-1) to form a second extension part (1-3), and the second extension part is folded for 180 degrees and then tightly attached to the upper part of the first extension part (1-1) to extend to the medicine core wrapping part (1-2) along the head part of the first extension part (1-1) to the tail part to form a third extension part (1-4);
the medicine core (2) is filled in the medicine core wrapping part (1-2).
2. The flux-cored wire for full weld puddle metallurgy according to claim 1, wherein: the flux-cored wrapping part (1-2) is circular on the section vertical to the length of the welding wire.
3. The flux-cored wire for full weld puddle metallurgy according to claim 1, wherein: the outer skin (1) is formed by winding a metal strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021222179.2U CN212470273U (en) | 2020-06-28 | 2020-06-28 | Flux-cored wire with sufficient metallurgical reaction of welding pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021222179.2U CN212470273U (en) | 2020-06-28 | 2020-06-28 | Flux-cored wire with sufficient metallurgical reaction of welding pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212470273U true CN212470273U (en) | 2021-02-05 |
Family
ID=74412885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021222179.2U Expired - Fee Related CN212470273U (en) | 2020-06-28 | 2020-06-28 | Flux-cored wire with sufficient metallurgical reaction of welding pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212470273U (en) |
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2020
- 2020-06-28 CN CN202021222179.2U patent/CN212470273U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 Termination date: 20210628 |