CN203065529U - Quenching and tempering induction rapid heating equipment for double metal strap saw blade heat treatment production line - Google Patents

Abstract

The utility model provides quenching and tempering induction rapid heating equipment for a double metal strap saw blade heat treatment production line and relates to the field of double metal strap saw blade production processing. Quenching heating equipment and tempering heating equipment are sequentially arranged according to the direction of saw blades from input to output; three heating units of the tempering heating equipment are sequentially arranged according to the direction of the saw blades from input to output; a quenching induction heater is arranged in a quenching induction heating furnace and used for rapidly heating the saw blades, a tempering induction heating furnace is arranged at the front end of the tempering heating furnace and the tempering induction heating furnace and the tempering heating furnace are connected together, the tempering induction heater is arranged inside the tempering induction heating furnace, the saw blades pass through a heating cavity of the tempering induction heater, and the tempering induction heater is used for rapidly heating the saw blades; and a tempering induction heating generator is connected with a tempering induction heater cathode and a tempering induction heater anode of the tempering induction heater. The quenching and tempering induction rapid heating equipment is applied to online dynamic rapid bright quenching and online rapid tempering heat treatment on double metal strap saw blades.

Description

Quenching and tempering induction rapid heating equipment for bimetallic band saw blade heat treatment production line

technical field

The utility model relates to a rapid heating device for producing a bimetallic band saw heat treatment production line, and relates to the technical field of bimetallic band saw production and processing.

Background technique

The heat treatment production line of bimetal band saw blade (hereinafter referred to as saw blade) is composed of quenching equipment and tempering equipment respectively. Among them, the quenching equipment is composed of quenching heating equipment and quenching cooling equipment, and the tempering equipment is composed of tempering heating equipment and tempering cooling equipment. The utility model only relates to induction rapid heating equipment in quenching and tempering. The quenching and tempering heating equipment of the saw blade heat treatment production line currently adopts conventional electric furnace wire heating or silicon molybdenum rod heating, etc. The existing production equipment has long heating time, high energy consumption, high cost, low efficiency, cannot be produced quickly and efficiently, and the quality of the saw blade Difficult to guarantee and other issues.

Utility model content

The utility model aims at the problems of long heating time, high energy consumption, high cost, low efficiency, incapable of fast and efficient production and difficulty in guaranteeing the quality of the saw blade in the existing production equipment, and provides a quenching and tempering induction rapid heating for the heat treatment production line of the bimetallic band saw blade equipment. "Fast" in "Quenching and Tempering Induction Rapid Heating Equipment for Bimetal Band Saw Blade Heat Treatment Production Line" means that the utility model can still meet the heating requirements when the linear speed of the bimetal band saw blade reaches 6 m/min. The "induction" can be high-frequency induction, medium-frequency induction or low-frequency induction.

The technical scheme that the utility model takes for solving the problems of the technologies described above is:

A kind of quenching and tempering induction rapid heating equipment for the heat treatment production line of bimetallic band saw blades. unit, the second heating unit and the third heating unit; the first heating unit, the second heating unit and the third heating unit are arranged sequentially according to the saw blade input to output direction; the quenching heating equipment includes a quenching induction heater, a quenching induction heating furnace , shielding plate, quenching induction heating generator and quenching heating furnace; the quenching induction heating furnace is located at the front end of the quenching heating furnace and the two are connected together, the quenching induction heater is installed in the quenching induction heating furnace, and the saw blade is fed from the Through the heating cavity, the quenching induction heater is used to quickly heat the saw blade, and the outlet of the quenching heating equipment is aligned with the entrance of the first heating unit of the tempering heating equipment; the quenching induction heater of the quenching induction heating generator and the quenching induction heater The negative electrode and the positive electrode of the quenching induction heater are connected; the quenching induction heating furnace is equipped with a shielding plate; the number of quenching induction heaters and quenching induction heating generators is N, where N is a natural number and 1≤N≤16; A heating unit includes a tempering induction heater, a tempering induction heating furnace, a tempering induction heating generator and a tempering heating furnace; the tempering induction heating furnace is located at the front end of the tempering heating furnace and the two are connected together, and the tempering induction heating The heater is installed in the tempering induction heating furnace, the saw blade passes through the heating cavity of the tempering induction heater, and the tempering induction heater is used for rapid heating of the saw blade; the tempering induction heating generator and the tempering induction heater return The negative electrode of the fire induction heater and the positive electrode of the tempering induction heater are connected; the number of the tempering induction heater and the tempering induction heating generator are both N, where N is a natural number and 1≤N≤16.

The beneficial effects of the utility model are:

The utility model sequentially adopts induction heating and quenching equipment and three induction heating and tempering equipment to rapidly heat the saw blade, thereby realizing efficient and rapid heating of quenching and tempering. It effectively solves the problems of long heating time for quenching and tempering, high energy consumption, low efficiency, inability to heat quickly and efficiently, and difficulty in ensuring the quality of saw blades, and at the same time reduces production costs. The utility model integrates rapid quenching induction heating equipment and three tempering induction heating furnaces arranged in sequence to form a complete rapid heating system for saw blade quenching and tempering. The utility model has short heating time, high efficiency, saves a large amount of electric energy, and obviously improves the heat treatment quality of the saw blade, fundamentally solves the above-mentioned technical problems, and makes a breakthrough in the prior art.

The utility model adopts ultra-high temperature induction rapid heating on-line quenching and ultra-high temperature induction rapid heating on-line tempering, which can not only ensure that the saw blade does not deform and the surface does not oxidize, but also realizes online dynamic rapid quenching and rapid on-line tempering.

The quenching process and tempering process described in the utility model adds the induction rapid heating technology, by shortening the saw blade heating time, increasing the production speed of the saw blade, and implementing the simultaneous quenching process and simultaneous tempering process of multiple saw blades at the same time, which can greatly increase the production capacity , save a lot of electric energy.

The utility model can also be applied to the following fields: heat treatment of single and multiple bimetal band saw blades, heat treatment of single metal band saw blades, heat treatment of hard alloy band saw blades, heat treatment of bimetal composite steel strips, heat treatment of various wire materials, Heat treatment of materials and other bright quenching heat treatments.

Description of drawings

Fig. 1 is the utility model quenching heating equipment structure schematic diagram; Fig. 2 is the utility model tempering heating equipment structure schematic diagram; Fig. 3 is the F-F sectional view of Fig. 1 or the E-E sectional view of Fig. 2; Fig. 4 is Fig. 3 partial enlarged view (a Oval induction heater); Fig. 5 is the F-F sectional view of Fig. 1 or the E-E sectional view of Fig. 2; Fig. 6 is the partial enlarged view of Fig. 5 (a circular induction heater).

Detailed ways

Specific Embodiment 1: As shown in Figures 1 to 6, the quenching and tempering induction rapid heating equipment for a bimetallic band saw blade heat treatment production line described in this embodiment includes quenching and heating equipment 29 and Tempering heating equipment 30; tempering heating equipment 30 includes the first heating unit A, the second heating unit B and the third heating unit C with the same structure; the first heating unit A, the second heating unit B and the third heating unit C According to the input to output direction of the saw blade 1, the quenching heating equipment 29 includes a quenching induction heater 2, a quenching induction heating furnace 5, a shielding plate 6, a quenching induction heating generator 7 and a quenching heating furnace 8; the quenching induction heating furnace 5 Located at the front end of the quenching heating furnace 8 and the two are connected together, the quenching induction heater 2 is installed in the quenching induction heating furnace 5, the saw blade 1 passes through the heating cavity of the quenching induction heater 2, and the quenching induction heater 2 is used for The saw blade 1 is rapidly heated, and the outlet of the quenching heating device 29 is aligned with the entrance of the first heating unit A of the tempering heating device 30; the quenching induction heating generator 7 and the quenching induction heater negative electrode 3 of the quenching induction heater 2, The positive electrode 4 of the heater is connected; the quenching induction heating furnace 5 is provided with a shielding plate 6; the number of the quenching induction heater 2 and the quenching induction heating generator 7 is N, wherein N is a natural number and 1≤N≤16; The first heating unit A comprises tempering induction heater 9, tempering induction heating furnace 10, tempering induction heating generator 13 and tempering heating furnace 14; tempering induction heating furnace 10 is positioned at the front end of tempering heating furnace 14 and two The tempering induction heater 9 is installed in the tempering induction heating furnace 10, the saw blade 1 passes through the heating cavity of the tempering induction heater 9, and the tempering induction heater 9 is used for rapid heating of the saw blade 1 The tempering induction heating generator 13 is connected with the tempering induction heater negative pole 11 and the tempering induction heater positive pole 12 of the tempering induction heater 9; the quantity of the tempering induction heater 9 and the tempering induction heating generator 13 is equal to N, where N is a natural number and 1≤N≤16.

Embodiment 2: As shown in FIGS. 3 and 5 , the quenching induction heating furnace 5 and the tempering induction heating furnace 10 in this embodiment have the same phase structure, and a layer of insulation layer 26 is provided on the outer surface of both furnaces. Other components and connections are the same as those in the first embodiment.

Specific embodiment three: as shown in Figure 3 and 5, the number of quenching induction heater 2 and quenching induction heating generator 7 described in this embodiment is 4, tempering induction heater 9 and tempering induction heating generator The number of 13 is 4. Other compositions and connections are the same as those in Embodiment 1 or 2.

Specific embodiment four: as shown in Figures 3-6, the quenching induction heating furnace 5 described in this embodiment is provided with the temperature measuring element 18 consistent with the quenching induction heater 2 quantity, and the tempering induction heating furnace 10 is provided with The tempering induction heater 9 has a consistent number of temperature measuring elements 18 . Other components and connections are the same as those in the third embodiment.

Embodiment 5: As shown in FIGS. 3 and 4 , the cross-sectional shapes of the heating bodies of the quenching induction heater 2 and the tempering induction heater 9 in this embodiment are both elliptical. Other components and connections are the same as those in the third embodiment.

Embodiment 6: As shown in Figures 5 and 6, the cross-sectional shapes of the heating bodies of the quenching induction heater 2 and the tempering induction heater 9 in this embodiment are both circular. Other components and connections are the same as those in the third embodiment.

Embodiment 7: As shown in Figures 1 to 6, this embodiment is an induction heating process using the induction heating equipment described in Embodiments 1, 2, 3, 4, 5 or 6 above, and the specific details of the induction heating process The process is:

The process of step A, quenching heating:

In the quenching induction heating furnace 5, the saw blade 1 is heated by induction at 700-1180°C, so that the temperature of the saw blade 1 reaches 700-1180°C, and then in the quenching heating furnace 8, the saw blade 1 is heated at 1180-1250°C, so that the saw blade 1 The temperature of the saw blade 1 reaches 1180-1250°C, and the heating step of the online quenching treatment of the saw blade 1 is completed; then the surface temperature of the saw blade 1 is cooled to below 50°C for cooling treatment;

Step B, the process of tempering heating:

Step B1: Inductively heat the saw blade 1 at 300-550°C in the tempering induction heating furnace 10 of the first heating unit A, so that the temperature of the saw blade 1 reaches 300-550°C, and then heat the saw blade 1 in the tempering induction heating furnace of the first heating unit A The saw blade 1 is heated at 550-630°C in the furnace 14, so that the temperature of the saw blade 1 reaches 550-630°C, and the heating step of the online first tempering treatment of the saw blade 1 is completed;

Step B2, after completing step B1, cool the surface temperature of the saw blade 1 to below 80°C, and then inductively heat the saw blade 1 at 300-550°C in the tempering induction heating furnace 10 of the second heating unit B to make the saw blade The temperature of 1 reaches 300-550°C, and then the saw blade 1 is heated at 550-630°C in the tempering furnace 14 of the first heating unit A, so that the temperature of the saw blade 1 reaches 550-630°C, and the online first step of the saw blade 1 is completed. The heating step of the secondary tempering treatment;

Step B3, after completing step B2, cool the surface temperature of the saw blade 1 to below 80°C, and then inductively heat the saw blade 1 at 300-550°C in the tempering induction heating furnace 10 of the third heating unit C to make the saw blade The temperature of 1 reaches 300-550°C, and then the saw blade 1 is heated at 550-630°C in the tempering furnace 14 of the first heating unit A, so that the temperature of the saw blade 1 reaches 550-630°C, and the online first step of the saw blade 1 is completed. Heating steps for three tempering treatments.

Carry out following elaboration again for the utility model:

The quenching heating device 29 may include a plurality of quenching induction heaters 2, and the tempering heating device 30 correspondingly includes a plurality of tempering induction heaters 9; making the utility model a bimetal band saw blade heat treatment capable of simultaneously producing multiple saw blades 1 Production line quenching and tempering rapid induction heating equipment. The structures of the quenching induction heating furnace 5, the tempering induction heating furnace 10 of the first heating unit A, the tempering induction heating furnace 10 of the second heating unit B and the tempering induction heating furnace 10 of the third heating unit C are the same, Only the set heating temperature parameters are different;

Each saw blade passes through an oval induction heater or a circular induction heater respectively, and the oval induction heater or a circular induction heater heats the saw blade rapidly; the quenching induction heating furnace is arranged sequentially according to the input to output direction of the saw blade 5. The tempering induction heating furnace 10 of a heating unit A, the tempering induction heating furnace 10 of the second heating unit B, the tempering induction heating furnace 10 of the third heating unit C, and the quenching induction heating furnace is located at the front end of the tempering induction heating furnace; Said N is a natural number and 1≤N≤16, N also represents the number of saw blades processed at the same time, Figure 3 and Figure 5 show the situation of four saw blades 1 produced online at the same time, the four saw blades 1 run at a constant speed, and the arrows indicate the running direction of the saw blades ;

The temperature measuring element can be an infrared temperature measuring element or other temperature measuring element, which is used to measure the surface temperature of the saw blade; the temperature measuring element transmits the temperature signal to the temperature control system and controls the quenching induction heating furnace through the temperature control system 5. Temperatures of the tempering induction heating furnace 10 of the first heating unit A, the tempering induction heating furnace 10 of the second heating unit B, and the tempering induction heating furnace 10 of the third heating unit C. The quenching induction heating furnace 5, the tempering induction heating furnace 10 of the first heating unit A, the tempering induction heating furnace 10 of the second heating unit B and the tempering induction heating furnace 10 of the third heating unit C are cylindrical and The surrounding side walls are provided with insulation layers.

The quenching induction heater 2 and the tempering induction heater 9 are arranged in a circular spiral shape, and the cross section can be elliptical or circular, and are formed by winding copper tubes, and cooling water is passed inside. Both ends of the quenching sensor are respectively connected to the negative pole and the positive pole of the quenching induction generator;

In the tempering induction heating furnace, the two ends of the tempering inductor communicate with the negative pole and the positive pole of the tempering induction generator respectively; the tempering inductor is made of winding copper tube and circulates cooling water inside it.

The quenching induction heating furnace 5, the tempering induction heating furnace 10 of the first heating unit A, the tempering induction heating furnace 10 of the second heating unit B and the tempering induction heating furnace 10 of the third heating unit C are respectively provided with Shielding plate, the shielding plate is set between the adjacent oval induction heaters or circular induction heaters to prevent electromagnetic interference, the shielding plate is made of heat-resistant material, and there is a long hole on the partition for the saw blade to pass through easily ;

working principle

Figures 1 to 6 show the quenching and tempering induction rapid heating equipment and process of the heat treatment production line for bimetallic band saw blades. The quenching induction heating furnace 5 is used to rapidly heat the saw blades to achieve high-temperature quenching and rapid heating; the tempering induction heating furnace A, tempering Induction heating furnace B and tempering induction heating furnace C heat the saw blade quickly to achieve high-temperature tempering and rapid heating. The high-energy induction rapid heating can make the saw blade quickly reach or approach the process temperature of quenching or tempering with less energy and in a short time, so as to achieve the purpose of low energy consumption and high productivity of the saw blade.

Claims (6)

1. bi-metal bandsaw blades heat-treatment production line Q-tempering induction rapid heating equipment is characterized in that: described heating installation comprises by saw blade (1) and inputs to quenching heating installation (29) and the tempering heating installation (30) that outbound course sets gradually; Tempering heating installation (30) comprises identical first heating unit (A) of structure, second heating unit (B) and the 3rd heating unit (C); First heating unit (A), second heating unit (B) and the 3rd heating unit (C) input to outbound course by saw blade (1) and set gradually;

Described quenching heating installation (29) comprises quenching induction heater (2), quenching induction heater (5), shielding slab (6), quenching induction heating producer (7) and quenching process furnace (8); Quenching induction heater (5) is positioned at the front end of quenching process furnace (8) and the two links together, quenching induction heater (2) is installed in the quenching induction heater (5), saw blade (1) passes through in the heating cavity of quenching induction heater (2), quenching induction heater (2) is used for saw blade (1) rapid heating, and the entrance of first heating unit (A) of tempering heating installation (30) is aimed in the outlet of quenching heating installation (29); Quenching induction heating producer (7) is connected with quenching induction heater negative pole (3), the quenching induction heater positive pole (4) of quenching induction heater (2); Be provided with shielding slab (6) in the quenching induction heater (5); The quantity of quenching induction heater (2) and quenching induction heating producer (7) is N, and wherein N is natural number and 1≤N≤16;

Described first heating unit (A) comprises tempering induction heater (9), tempering induction heater (10), tempering induction heating producer (13) and tempering process furnace (14); Tempering induction heater (10) is positioned at the front end of tempering process furnace (14) and the two links together, tempering induction heater (9) is installed in the tempering induction heater (10), saw blade (1) passes through in the heating cavity of tempering induction heater (9), and tempering induction heater (9) is used for saw blade (1) rapid heating; Tempering induction heating producer (13) is connected with tempering induction heater negative pole (11), the tempering induction heater positive pole (12) of tempering induction heater (9); The quantity of tempering induction heater (9) and tempering induction heating producer (13) is N, and wherein, N is natural number and 1≤N≤16.

2. a kind of bi-metal bandsaw blades heat-treatment production line Q-tempering according to claim 1 is responded to rapid heating equipment, it is characterized in that: described quenching induction heater (5) is identical with the structure of tempering induction heater (10), and the body of heater outside surface of the two is equipped with one deck thermal insulation layer (26).

3. a kind of bi-metal bandsaw blades heat-treatment production line Q-tempering according to claim 1 and 2 is responded to rapid heating equipment, it is characterized in that: the quantity of quenching induction heater (2) and quenching induction heating producer (7) is 4,8 or 16, and the quantity of tempering induction heater (9) and tempering induction heating producer (13) is 4,8 or 16.

4. a kind of bi-metal bandsaw blades heat-treatment production line Q-tempering according to claim 3 is responded to rapid heating equipment, it is characterized in that: be provided with the temperature element (18) consistent with the induction heater that quenches (2) quantity in the described quenching induction heater (5), be provided with consistent with tempering induction heater (9) quantity temperature element (18) in the tempering induction heater (10).

5. a kind of bi-metal bandsaw blades heat-treatment production line Q-tempering induction rapid heating equipment according to claim 3 is characterized in that: the equal ovalize of cross-sectional shape of the heating main body of quenching induction heater (2) and tempering induction heater (9).

6. a kind of bi-metal bandsaw blades heat-treatment production line Q-tempering according to claim 3 is responded to rapid heating equipment, and it is characterized in that: the cross-sectional shape of the heating main body of quenching induction heater (2) and tempering induction heater (9) is all rounded.

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