阅读说明：本技术 一种陶瓷点火器所用加热棒及其制作工艺 (Heating rod for ceramic igniter and manufacturing process thereof ) 是由 张文平 于 2020-03-31 设计创作，主要内容包括：本发明提供一种陶瓷点火器所用加热棒及其制作工艺,包括：陶瓷芯棒,所述陶瓷芯棒的内腔填充有导电浆料,所述导电浆料内腔的四周均附着有导热线路,所述导热线路相向的一端钎焊有电极引线,所述陶瓷芯棒的左端栓接有热敏电阻温度传感器,所述陶瓷芯棒的右端一体加工有连接端部,所述连接端部右端的顶部和底部均活动连接有第一连接导线。本发明通过导电浆料、导热线路和电极引线的配合,可对陶瓷芯棒进行通电处理,接着通过热敏电阻温度传感器的配合,可对陶瓷芯棒的加热温度进行感应监测,通过连接端部、第一连接导线、电流调节器、第二连接导线和电源可调调节器的配合,可对通过导热线路的电流进行调节处理。(The invention provides a heating rod for a ceramic igniter and a manufacturing process thereof, wherein the heating rod comprises the following components: the ceramic core rod comprises a ceramic core rod, wherein an inner cavity of the ceramic core rod is filled with conductive slurry, heat conducting circuits are attached to the periphery of the inner cavity of the conductive slurry, electrode leads are brazed at opposite ends of the heat conducting circuits, a thermistor temperature sensor is bolted at the left end of the ceramic core rod, a connecting end part is integrally machined at the right end of the ceramic core rod, and the top and the bottom of the right end of the connecting end part are movably connected with first connecting wires. The ceramic core rod can be electrified by matching the conductive paste, the conductive circuit and the electrode lead, then the heating temperature of the ceramic core rod can be inductively monitored by matching the thermistor temperature sensor, and the current passing through the conductive circuit can be regulated by matching the connecting end part, the first connecting lead, the current regulator, the second connecting lead and the power supply adjustable regulator.)

1. A heater rod for a ceramic igniter, comprising: a ceramic core rod (1), wherein the inner cavity of the ceramic core rod (1) is filled with conductive slurry (2), the periphery of the inner cavity of the conductive paste (2) is attached with a heat conducting circuit (3), one opposite end of the heat conducting circuit (3) is brazed with an electrode lead (4), the left end of the ceramic core rod (1) is bolted with a thermistor temperature sensor (5), the right end of the ceramic core rod (1) is integrally processed with a connecting end part (6), the top and the bottom of the right end of the connecting end part (6) are both movably connected with a first connecting lead (7), one end of the first connecting lead (7) far away from the connecting end part (6) is movably connected with a current regulator (8), the wiring end of the current regulator (8) is movably connected with a second connecting lead (9), one end of the second connecting lead (9) far away from the current regulator (8) is movably connected with a power supply adjustable regulator (10).

2. The heater rod for a ceramic igniter as claimed in claim 1, wherein the shape of the heat conductive line (3) is provided in a "U" shape, and the number of the electrode leads (4) is two and divided into a positive electrode and a negative electrode.

3. The heater rod for a ceramic igniter as claimed in claim 1, wherein a fastening hexagonal bolt (11) is threadedly coupled to an end of the ceramic core rod (1) opposite to the connection end portion (6), and the fastening hexagonal bolt (11) is made of a high carbon steel alloy material.

4. The heating rod for the ceramic igniter as claimed in claim 1, wherein an voltmeter and an ammeter are sequentially embedded in the top of the front surface of the adjustable power regulator (10) from left to right, and control buttons are sequentially embedded in the bottom of the front surface of the adjustable power regulator (10) from left to right.

5. A manufacturing process of a heating rod for a ceramic igniter is characterized by comprising the following operation steps:

A. forming a ceramic core rod die: the method comprises the following steps that a user selects and matches the proportions of 70-80 wt% of silicon nitride, 2-3 wt% of yttrium oxide, 5-8 wt% of calcium carbonate, 1-4 wt% of titanium powder, 2-4 wt% of aluminum oxide, 2-3 wt% of titanium carbide, 2-3 wt% of kaolin and 3-4 wt% of boron nitride in advance, and then the user puts the raw materials into a ball mill in sequence to grind until porcelain is prepared;

B. and (3) low-temperature sintering: then, a user presses the porcelain in the ceramic core blank mold into a wax cake by using a hot pressing method, then the user puts the ceramic core blank mold into a hot-pressing injection machine, the hot-pressing injection machine is heated to 80 ℃, then an electric stirrer is used for uniformly stirring melted wax slurry, then the user injects the prepared porcelain wax slurry into the ceramic core blank mold for sintering and forming, and after sintering and forming, the mold is taken down to prepare the ceramic core;

C. curling the casting sheet: then, the ceramic core with the outer side surface curled with the tape casting sheet is sintered into a ceramic core rod with a curled ceramic sheet tightly attached to the outer side surface of the cylindrical ceramic core by a user at high temperature;

D. injecting slurry: then, a user casts conductive slurry on the inner surface of the casting sheet to ensure that the conductive slurry is uniformly distributed on the periphery of the ceramic core rod;

E. drying and forming: then, the user puts the tape casting sheet and the ceramic core rod which are filled with the slurry into a drying box for drying until the conductive slurry on the surfaces of the tape casting sheet and the ceramic core rod is dried into a solid state;

F. electrode lead brazing: a user brazes two electrode leads on the ceramic core rod body, then prints a resistance film on the surface of the solid state slurry, the resistance film covers the outer layer wrapping pressure support and acts on the casting sheet, and then the user tin welds a heat conducting circuit on the surface of the resistance film;

G. high-temperature co-firing: then, the user cuts the two green ceramic chips into proper sizes, covers the surfaces of the ceramic core rods, carries out protection treatment, carries out static pressure of 200Kg/f, puts the ceramic core rods protected by the green ceramic chips into a high-temperature furnace for high-temperature co-firing, combines the two green ceramic chips and the ceramic core rods into a whole, and then prepares the cooked ceramic heating rod;

H. current regulation and assembly: then, a user transports the porcelain heating rod on a production line for manual assembly, the user is connected with a current regulator (8) through two first connecting wires (7), and is connected with a power supply adjustable regulator (10) through two second connecting wires (9), and a thermistor temperature sensor (5) is additionally arranged at the tail end of the porcelain heating rod;

I. and (3) finished product inspection and offline storage: the user examines whether the internal part and the surface of the product have deviant wires, the current regulator (8) and the power supply adjustable regulator (10) have current and power deviation, the intensity of the cooked porcelain heating rod product and the surface temperature of the cooked porcelain heating rod, and then the user stores the qualified heating rod after offline scanning.

6. The process of claim 1, wherein in step A, the ball mill is used for milling and stirring for a period of time not less than 2-8h, and the porcelain has a particle diameter of less than 2000 mesh.

7. The process as claimed in claim 1, wherein in step B, the stirring time of the electric stirrer is not less than 2-4h, and the stirring speed of the electric stirrer is in the range of 500-800 r/min.

8. The process of claim 1, wherein in step D, the bubbles in the conductive paste are visually detected by a user and recorded on a shift table.

9. The process of claim 1, wherein in step E, the drying temperature of the drying box is increased to 180 ℃ and the drying time of the drying box is in the range of 1.5-4 h.

10. The process of claim 1, wherein in step G, the temperature of the high temperature furnace is in the range of 1500-2000 ℃ and the high temperature co-firing time is in the range of 6-10 h.

Technical Field

The invention relates to the field of ceramic igniters, in particular to a heating rod for a ceramic igniter and a manufacturing process thereof.

Background

Igniter, which is a device capable of providing enough energy to ignite pulverized coal and oil (gas) fuel at an instant and stabilizing flame, is divided into commercial and civil furnaces: commercial mainly is applied to food and beverage kitchen stove ignition system, because the service environment of food and beverage kitchen is more complicated, so the requirement is relatively civilian strict when selecting the point firearm, and civilian mainly is applied to the ignition system of family's stove, and the service environment is simpler than the food and beverage stove, helps selecting pulsed ignition more.

When kitchen culinary art was igniteed, the user mostly used ceramic igniter to ignite and handles, and the heating rod is the indispensable important part of ceramic igniter, however current heating rod is in the manufacture process, mostly uses the individual layer curtain coating piece to wrap up the protection, then when the heating rod high temperature was igniteed, the potential safety hazard easily exists, also can not carry out regulation and control to the electric current through the heating rod simultaneously, then can not carry out temperature control to the heating temperature of heating rod, then reduce the heating performance of heating rod.

Therefore, it is necessary to provide a heating rod for a ceramic igniter and a manufacturing process thereof to solve the above problems.

Disclosure of Invention

The invention provides a heating rod for a ceramic igniter and a manufacturing process thereof, and solves the problems that a single-layer tape casting sheet is mostly used for wrapping protection in the manufacturing process of the existing heating rod, potential safety hazards easily exist when the heating rod is ignited at high temperature, and the current passing through the heating rod cannot be adjusted and controlled.

In order to solve the above technical problems, the present invention provides a heating rod for a ceramic igniter, comprising: the ceramic core rod is characterized in that an inner cavity of the ceramic core rod is filled with conductive slurry, heat conducting circuits are attached to the periphery of the inner cavity of the conductive slurry, electrode leads are brazed at opposite ends of the heat conducting circuits, a thermistor temperature sensor is bolted at the left end of the ceramic core rod, a connecting end portion is integrally machined at the right end of the ceramic core rod, the top and the bottom of the right end of the connecting end portion are movably connected with first connecting wires, one end, far away from the connecting end portion, of each first connecting wire is movably connected with a current regulator, a wiring end of each current regulator is movably connected with a second connecting wire, and one end, far away from the current regulator, of each second connecting wire is movably connected with a power adjustable regulator.

Preferably, the heat conductive line is formed in a "U" shape, and the number of the electrode leads is two and is divided into a positive electrode and a negative electrode.

Preferably, the ceramic core rod and the end, opposite to the connecting end, of the connecting end are in threaded connection with a fastening hexagon bolt, and the fastening hexagon bolt is made of a high-carbon steel alloy material.

Preferably, the voltmeter and the ammeter are sequentially embedded in the front top of the power adjustable regulator from left to right, and the control button is sequentially embedded in the front bottom of the power adjustable regulator from left to right.

A manufacturing process of a heating rod for a ceramic igniter comprises the following operation steps:

A. forming a ceramic core rod die: the method comprises the following steps that a user selects and matches the proportions of 70-80 wt% of silicon nitride, 2-3 wt% of yttrium oxide, 5-8 wt% of calcium carbonate, 1-4 wt% of titanium powder, 2-4 wt% of aluminum oxide, 2-3 wt% of titanium carbide, 2-3 wt% of kaolin and 3-4 wt% of boron nitride in advance, and then the user puts the raw materials into a ball mill in sequence to grind until porcelain is prepared;

B. and (3) low-temperature sintering: then, a user presses the porcelain in the ceramic core blank mold into a wax cake by using a hot pressing method, then the user puts the ceramic core blank mold into a hot-pressing injection machine, the hot-pressing injection machine is heated to 80 ℃, then an electric stirrer is used for uniformly stirring melted wax slurry, then the user injects the prepared porcelain wax slurry into the ceramic core blank mold for sintering and forming, and after sintering and forming, the mold is taken down to prepare the ceramic core;

C. curling the casting sheet: then, the ceramic core with the outer side surface curled with the tape casting sheet is sintered into a ceramic core rod with a curled ceramic sheet tightly attached to the outer side surface of the cylindrical ceramic core by a user at high temperature;

D. injecting slurry: then, a user casts conductive slurry on the inner surface of the casting sheet to ensure that the conductive slurry is uniformly distributed on the periphery of the ceramic core rod;

E. drying and forming: then, the user puts the tape casting sheet and the ceramic core rod which are filled with the slurry into a drying box for drying until the conductive slurry on the surfaces of the tape casting sheet and the ceramic core rod is dried into a solid state;

F. electrode lead brazing: a user brazes two electrode leads on the ceramic core rod body, then prints a resistance film on the surface of the solid state slurry, the resistance film covers the outer layer wrapping pressure support and acts on the casting sheet, and then the user tin welds a heat conducting circuit on the surface of the resistance film;

G. high-temperature co-firing: then, the user cuts the two green ceramic chips into proper sizes, covers the surfaces of the ceramic core rods, carries out protection treatment, carries out static pressure of 200Kg/f, puts the ceramic core rods protected by the green ceramic chips into a high-temperature furnace for high-temperature co-firing, combines the two green ceramic chips and the ceramic core rods into a whole, and then prepares the cooked ceramic heating rod;

H. current regulation and assembly: then, a user transports the cooked porcelain heating rod on a production line for manual assembly, the user is connected with a current regulator through two first connecting wires and then connected with a power supply adjustable regulator through two second connecting wires, and a thermistor temperature sensor 5 is additionally arranged at the tail end of the cooked porcelain heating rod;

I. and (3) finished product inspection and offline storage: the user examines whether the inside and the surface of the product have the deviation of inclined wires, the current regulator and the power of the adjustable regulator of the power supply, the strength of the cooked porcelain heating rod product and the surface temperature of the cooked porcelain heating rod, and then the user stores the qualified heating rod after off-line scanning.

Preferably, in the step A, the grinding and stirring time of the ball mill is not less than 2-8h, and the particle diameter of the porcelain is less than 2000 meshes.

Preferably, in the step B, the stirring time of the electric stirrer is not less than 2-4h, and the stirring speed of the electric stirrer is in the range of 500-800 r/min.

Preferably, in the step D, the user uses a visual method to observe and discharge the bubbles inside the conductive paste, and records the detection condition on the shift table.

Preferably, in the step E, the drying temperature of the drying box is increased to 100-.

Preferably, in the step G, the temperature of the high-temperature furnace is in the range of 1500-2000 ℃, and the high-temperature co-firing time is in the range of 6-10 h.

Compared with the related technology, the heating rod for the ceramic igniter and the manufacturing process thereof provided by the invention have the following beneficial effects:

the invention provides a heating rod for a ceramic igniter and a manufacturing process thereof,

1. according to the invention, through the matching of the conductive paste, the conductive circuit and the electrode lead, the ceramic core rod can be subjected to electrifying treatment, then through the matching of the thermistor temperature sensor, the heating temperature of the ceramic core rod can be inductively monitored, through the matching of the connecting end part, the first connecting lead, the current regulator, the second connecting lead and the power supply adjustable regulator, the current passing through the conductive circuit can be regulated, then the heating temperature of the ceramic core rod can be accurately regulated and controlled, and the overall heating performance of the heating rod is enhanced;

2. according to the invention, the surface of the ceramic core rod can be uniformly and conductively heated by arranging the heat conducting circuit in a U-shaped shape, the temperature rising uniformity of the ceramic core rod is enhanced, the connecting position of the ceramic core rod and the connecting end part can be fastened by fastening the hexagon bolt, the connecting position of the ceramic core rod and the connecting end part is prevented from being loosened or broken, the current and voltage values passing through the inside of the power supply adjustable regulator can be conveniently observed by a user through the voltmeter and the ammeter, the current overload damage of the power supply adjustable regulator is prevented, and the operation control of the power supply adjustable regulator is conveniently carried out by the user through the control button.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a heater rod for a ceramic igniter and a process for making the heater rod according to the invention;

FIG. 2 is a cross-sectional structural view of the ceramic core rod shown in FIG. 1;

FIG. 3 is a flow chart of the preparation steps shown in FIG. 1.

Reference numbers in the figures: 1. a ceramic core rod; 2. conductive paste; 3. a heat conducting line; 4. an electrode lead; 5. a thermistor temperature sensor; 6. a connecting end portion; 7. a first connecting wire; 8. a current regulator; 9. a second connecting wire; 10. a power supply adjustable regulator; 11. and fastening the hexagon bolts.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural view of a heating rod for a ceramic igniter and a process for manufacturing the heating rod, fig. 2 is a sectional structural view of the ceramic core rod shown in fig. 1, and fig. 3 is a flowchart illustrating a manufacturing step shown in fig. 1. A heater bar for a ceramic igniter, comprising: the ceramic core rod comprises a ceramic core rod 1, wherein an inner cavity of the ceramic core rod 1 is filled with conductive paste 2, heat conducting circuits 3 are attached to the periphery of the inner cavity of the conductive paste 2, electrode leads 4 are brazed at opposite ends of the heat conducting circuits 3, a thermistor temperature sensor 5 is bolted at the left end of the ceramic core rod 1, a connecting end part 6 is integrally processed at the right end of the ceramic core rod 1, the top and the bottom of the right end of the connecting end part 6 are movably connected with first connecting wires 7, one end, far away from the connecting end part 6, of each first connecting wire 7 is movably connected with a current regulator 8, a wiring end of each current regulator 8 is movably connected with a second connecting wire 9, and one end, far away from the current regulator 8, of each second connecting wire 9 is movably connected with a power supply adjustable regulator 10.

The heat conducting circuit 3 is in a U shape, the number of the electrode leads 4 is two, the electrode leads are divided into a positive electrode and a negative electrode, the surface of the ceramic core rod 1 can be uniformly heated in a conducting manner, and the temperature rising uniformity of the ceramic core rod 1 is improved.

The ceramic core rod 1 and the connecting end part 6 are connected with a fastening hexagon bolt 11 in a threaded mode at one opposite end, the fastening hexagon bolt 11 is made of high-carbon steel alloy materials, the connecting position of the ceramic core rod 1 and the connecting end part 6 can be fastened through bolts, and the connecting position of the ceramic core rod 1 and the connecting end part 6 is prevented from being loosened or broken.

The positive top of power adjustable regulator 10 inlays in proper order from a left side to the right side and is equipped with voltmeter and ampere meter, and convenient to use person observes the inside electric current and the magnitude of voltage that pass through of power adjustable regulator 10, prevents that power adjustable regulator 10 from the current overload damage that appears, the positive bottom of power adjustable regulator 10 inlays in proper order from a left side to the right side and is equipped with control button, and convenient to use person carries out operation control to power adjustable regulator 10.

A manufacturing process of a heating rod for a ceramic igniter comprises the following operation steps:

A. forming a ceramic core rod die: the method comprises the following steps that a user selects and matches the proportions of 70-80 wt% of silicon nitride, 2-3 wt% of yttrium oxide, 5-8 wt% of calcium carbonate, 1-4 wt% of titanium powder, 2-4 wt% of aluminum oxide, 2-3 wt% of titanium carbide, 2-3 wt% of kaolin and 3-4 wt% of boron nitride in advance, and then the user puts the raw materials into a ball mill in sequence to grind until porcelain is prepared;

B. and (3) low-temperature sintering: then, a user presses the porcelain in the ceramic core blank mold into a wax cake by using a hot pressing method, then the user puts the ceramic core blank mold into a hot-pressing injection machine, the hot-pressing injection machine is heated to 80 ℃, then an electric stirrer is used for uniformly stirring melted wax slurry, then the user injects the prepared porcelain wax slurry into the ceramic core blank mold for sintering and forming, and after sintering and forming, the mold is taken down to prepare the ceramic core;

C. curling the casting sheet: then, the ceramic core with the outer side surface curled with the tape casting sheet is sintered into a ceramic core rod with a curled ceramic sheet tightly attached to the outer side surface of the cylindrical ceramic core by a user at high temperature;

D. injecting slurry: then, a user casts conductive slurry on the inner surface of the casting sheet to ensure that the conductive slurry is uniformly distributed on the periphery of the ceramic core rod;

E. drying and forming: then, the user puts the tape casting sheet and the ceramic core rod which are filled with the slurry into a drying box for drying until the conductive slurry on the surfaces of the tape casting sheet and the ceramic core rod is dried into a solid state;

F. electrode lead brazing: a user brazes two electrode leads on the ceramic core rod body, then prints a resistance film on the surface of the solid state slurry, the resistance film covers the outer layer wrapping pressure support and acts on the casting sheet, and then the user tin welds a heat conducting circuit on the surface of the resistance film;

G. high-temperature co-firing: then, the user cuts the two green ceramic chips into proper sizes, covers the surfaces of the ceramic core rods, carries out protection treatment, carries out static pressure of 200Kg/f, puts the ceramic core rods protected by the green ceramic chips into a high-temperature furnace for high-temperature co-firing, combines the two green ceramic chips and the ceramic core rods into a whole, and then prepares the cooked ceramic heating rod;

H. current regulation and assembly: then, a user transports the porcelain heating rod on a production line for manual assembly, the user is connected with a current regulator 8 through two first connecting wires 7 and then connected with a power supply adjustable regulator 10 through two second connecting wires 9, and a thermistor temperature sensor 5 is additionally arranged at the tail end of the porcelain heating rod;

I. and (3) finished product inspection and offline storage: the user examines whether the internal part and the surface of the product have deviant wires, the current regulator 8 and the power adjustable regulator 10 have current and power deviation, the strength of the cooked porcelain heating rod product and the surface temperature of the cooked porcelain heating rod, and then the user stores the qualified heating rod after off-line scanning.

In the step A, the grinding and stirring time of the ball mill is not less than 2-8h, particularly 6h, and the particle diameter of the porcelain is less than 2000 meshes, particularly 1680 meshes.

In the step B, the stirring time of the electric stirrer is not less than 2-4h, specifically 3h, the stirring speed range of the electric stirrer is 500-800r/min, and the specific rotating speed is 700 r/min.

In the step D, the user observes and discharges the bubbles in the conductive paste by using a visual method, and records the detection condition on a shift table.

In the step E, the drying temperature of the drying box is increased to 180 ℃ of 100-.

In the step G, the temperature range of the high-temperature furnace is 1500-2000 ℃, the specific temperature is 1800 ℃, the high-temperature co-firing time range is 6-10h, and the specific time is 8 h.

The working principle of the heating rod for the ceramic igniter and the manufacturing process thereof provided by the invention is as follows:

the transmission of electricity tip of power adjustable regulator 10 is carried out the circular telegram to current regulator 8 by two second connecting wire 9, current regulator 8 carries out size control to the convection current, then the electric current passes through two first connecting wire 7 and gets into in conducting wire 3 by electrode lead 4, electrically conductive thick liquids 2 are as heating medium, thereby conduct heat to electrically conductive thick liquids 2 with heat behind the electrically conductive line 3 electrically conductive, electrically conductive thick liquids 2 is heated and is conducted to ceramic plug 1 subsequently, thereby generate heat to ceramic plug 1, through the temperature inductive monitoring of thermistor temperature sensor 5, then thermistor temperature sensor 5 sends temperature instruction to power adjustable regulator 10, then the user can carry out accurate control to the heating temperature of ceramic plug 1.

Compared with the related technology, the heating rod for the ceramic igniter and the manufacturing process thereof provided by the invention have the following beneficial effects:

according to the invention, through the matching of the conductive paste 2, the heat conducting circuit 3 and the electrode lead 4, the ceramic core rod 1 can be subjected to energization treatment, then through the matching of the thermistor temperature sensor 5, the heating temperature of the ceramic core rod 1 can be inductively monitored, through the matching of the connecting end part 6, the first connecting lead 7, the current regulator 8, the second connecting lead 9 and the power supply adjustable regulator 10, the current passing through the heat conducting circuit 3 can be regulated, then the heating temperature of the ceramic core rod 1 can be accurately regulated, and the overall heating performance of the heating rod is enhanced.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.