CN102607027A

CN102607027A - Quick metal cutting strip by means of combustion

Info

Publication number: CN102607027A
Application number: CN2012100746997A
Authority: CN
Inventors: 董山龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2012-07-25

Abstract

The invention discloses a quick metal cutting strip by means of combustion, which comprises an iron pipe (1). One end of the iron pipe (1) serves as a gas inlet end (2), the other end of the iron pipe (1) serves as a gas outlet end (3), a gas channel I (4) is arranged in the center of the iron pipe (1), a plurality of galvanized iron wires (5) are uniformly inserted into the iron pipe (1) and are fixed in the iron pipe (1) after being tightly pressed by the iron pipe (1), the external section of each galvanized iron wire (5) is closely attached onto the inner wall of the iron pipe (1), the inner sides of the galvanized iron wires (5) enclose the gas channel I (4), a gap is reserved between the outer sides of each two adjacent galvanized iron wires (5), an independent gas channel II (7) is formed between each gap and the iron pipe (1), a safety area (8) is arranged among an end opening of the gas inlet end (2) and the galvanized iron wires (5) and is used for partitioning the galvanized iron wires (5) from an oxygen supply gas channel of a cutting gun, and the oxygen supply gas channel of the cutting gun is respectively communicated with the gas channel I (4) and the gas channels (7) through the safety area (8).

Description

A kind of burning metal speed slitting

Technical field

The invention provides a kind of burning metal speed slitting.

Background technology

At present, on the market to alloying metal be cut with oxygen cutting, gasoline cutting, plasma cutting etc., the performance of these cutting machines as: oxygen, gasoline cutting machine can not cut copper material, aluminium and cast iron, stainless steel; Though CUT can cut these materials, the degree of depth of cutting receives the restriction of sheet metal thickness, and the volume of the thicker machine of cutting plate is just big more; What also have cutting rod employing under water is the alloying metal consumptive material, not only cost an arm and a leg, and complex structure.

Summary of the invention

The invention provides a kind of burning metal speed slitting, not only result of use is good, applied widely for it, can cut various materials, and cost of manufacture is low.

The present invention has adopted following technical scheme: a kind of burning metal speed slitting, and it comprises iron pipe, an end of iron pipe is an inlet end; The other end is the outlet side, is set to the gas circuit I at the center of iron pipe, in iron pipe, evenly is inserted with some coating iron wires; It is solid in iron pipe that iron pipe compresses the back with the coating iron wire; The outer tangent plane of each coating iron wire is close on the inwall of iron pipe, and each coating iron wire inboard is centered around around the gas circuit I, is provided with the gap between the outside of coating iron wire; Form independently gas circuit II between the inwall of each gap and iron pipe; Between the port of inlet end and coating iron wire, locate to be provided with the place of safety, the oxygen supply gas circuit of coating iron wire and cutting gun is separated in the place of safety, and the oxygen supply gas circuit of cutting gun is connected with gas circuit I and gas circuit II respectively through the place of safety.

The sectional area sum of described gas circuit I and gas circuit II: the ratio of the sectional area of iron pipe is 0.05-0.4.The diameter of described coating iron wire is greater than 2MM, less than 10MM.Described coating iron wire is set to galvanized wire, copper coated iron wire, nickel coated iron wire or chromium plating iron wire.The diameter of described iron pipe is less than 70MM.The end that described coating iron wire contacts with the place of safety is provided with the chamfering of inside slyness.The angle of described chamfering is 30 °-85 °.The angle of described chamfering is 40 °.The length of described place of safety is 3-8CM.

The invention has the beneficial effects as follows: be evenly distributed with some coating iron wires in the iron pipe of the present invention; Iron pipe is fixed in the iron pipe after the coating iron wire is compressed, and the outer tangent plane of each coating iron wire is close on the inwall of iron pipe, and each coating iron wire inboard is centered around around the gas circuit I; Form independently gas circuit II between the gap between the outside of coating iron wire and the inwall of iron pipe; Between the port of inlet end and coating iron wire, locate to be provided with the place of safety, the oxygen supply gas circuit of coating iron wire and cutting gun is separated in the place of safety, and the oxygen supply gas circuit of cutting gun is connected with gas circuit I and gas circuit II respectively through the place of safety; Can come various metals of cutting and nonmetallic materials through logical oxygen burning in galvanized wire and gas circuit I and the gas circuit II like this; Not only applied widely, can carry out the cutting operation of various materials, and what use is the coating iron wire; Thereby greatly reduce the cost of consumptive material, effective.The end that coating iron wire of the present invention contacts with the oxygen supply gas circuit is provided with the chamfering of inside slyness, can reduce the air resistance of oxygen in burning metal speed slitting like this, strengthens oxygen pressure and flow velocity in the cutting gas circuit, reduces pressure and flow velocity in the burning gas circuit.Be provided with the place of safety in the iron pipe of the present invention, the oxygen supply gas circuit of coating iron wire and cutting gun is separated in the place of safety, can prevent like this in the cutting gun internal combustion, improves security.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is a cross sectional representation of the present invention.

The specific embodiment

In Fig. 1 and Fig. 2, the present invention is a kind of burning metal speed slitting, and it comprises iron pipe 1; The diameter of iron pipe 1 is less than 70MM, and present embodiment adopts 8.15 MM, and an end of iron pipe 1 is an inlet end 2; The other end is outlet side 3, is set to gas circuit I 4 at the center of iron pipe 1, in iron pipe 1, evenly is inserted with some coating iron wires 5; Present embodiment is inserted with six roots of sensation coating iron wire 5, and coating iron wire 5 is set to galvanized wire, copper coated iron wire, nickel coated iron wire or chromium plating iron wire, and the diameter of coating iron wire 5 is greater than 2MM; Less than 10MM, present embodiment adopts 2.15MM, and it is solid in iron pipe 1 that iron pipe 1 compresses the back with coating iron wire 5; The outer tangent plane of each coating iron wire 5 is close on the inwall of iron pipe 1, and each coating iron wire 5 inboard is centered around around the gas circuit I 4, is provided with gap 6 between the outside of coating iron wire 5; Form independently gas circuit II 7 between the inwall of each gap 6 and iron pipe 1, between the port of inlet end 2 and coating iron wire 5, locate to be provided with place of safety 8, the length of place of safety 8 is 3-8CM; Present embodiment adopts 5CM, and the coating iron wire 5 and the oxygen supply gas circuit of cutting gun are separated in place of safety 8, and the oxygen supply gas circuit of cutting gun is connected with gas circuit I 4 and gas circuit II 7 respectively through place of safety 8; The sectional area sum of gas circuit I 4 and gas circuit II 7: the ratio of the sectional area of iron pipe 1 is 0.05-0.4, and the gas circuit I 4 of present embodiment and the sectional area sum of gas circuit II 7: the sectional area of iron pipe 1 is 0.15, and the end that coating iron wire 5 contacts with place of safety 8 is provided with the chamfering 9 of inside slyness; The angle of chamfering 9 is 30 °-85 °, and the angle of the chamfering 9 of present embodiment is 40 °.

In Fig. 1; After the oxygen in the cutting gun is through the place of safety, get into gas circuit I 4 and gas circuit II 7; The material that is cut is melted; The metal liquid that the oxygen of gas circuit I 4 will produce after high speed air pressure will melt blows off; Thereby the time part that need cut break away from material body and accomplish cutting operation, owing to chamfering 9 intilted reasons make most of oxygen introduce gas circuit I 4 and compress the stronger cutting gas circuit of formation, obviously reduce the air resistance of oxygen in burning metal speed slitting.

Further specify the effect of cutting steel plate, cast iron, stainless steel, copper coin and aluminium alloy through following form:

Claims

1. burning metal speed slitting; It is characterized in that it comprises iron pipe (1), an end of iron pipe (1) is inlet end (2), and the other end is outlet side (3); Be set to gas circuit I (4) at the center of iron pipe (1); In iron pipe (1), evenly be inserted with some coating iron wires (5), it is solid in iron pipe (1) that iron pipe (1) compresses the back with coating iron wire (5), and the outer tangent plane of each coating iron wire (5) is close on the inwall of iron pipe (1); Each coating iron wire (5) inboard is centered around gas circuit I (4) on every side; Be provided with the gap between the outside of coating iron wire (5), form independently gas circuit II (7) between the inwall of each gap and iron pipe (1), between the port of inlet end (2) and coating iron wire (5), locate to be provided with place of safety (8); The coating iron wire (5) and the oxygen supply gas circuit of cutting gun are separated in place of safety (8), and the oxygen supply gas circuit of cutting gun is connected with gas circuit I (4) and gas circuit II (7) respectively through place of safety (8).

2. burning metal according to claim 1 speed slitting, it is characterized in that the sectional area sum of described gas circuit I (4) and gas circuit II (7): the ratio of the sectional area of iron pipe (1) is 0.05-0.4.

3. burning metal speed slitting according to claim 1, the diameter that it is characterized in that described coating iron wire (5) is greater than 2MM, less than 10MM.

4. according to claim 1 or 3 described burning metal speed slittings, it is characterized in that described coating iron wire (5) is set to galvanized wire, copper coated iron wire, nickel coated iron wire or chromium plating iron wire.

5. burning metal speed slitting according to claim 1, the diameter that it is characterized in that described iron pipe (1) is less than 70MM.

6. burning metal according to claim 1 speed slitting is characterized in that a end that described coating iron wire (5) contacts with place of safety (8) is provided with the chamfering (6) of inside slyness.

7. burning metal speed slitting according to claim 6, the angle that it is characterized in that described chamfering (6) is 30 °-85 °.

8. burning metal speed slitting according to claim 7, the angle that it is characterized in that described chamfering (6) is 40 °.

9. burning metal speed slitting according to claim 1, the length that it is characterized in that described place of safety (8) is 3-8CM.