CN114540588A - Stainless steel wire annealing and heating process system - Google Patents
Stainless steel wire annealing and heating process system Download PDFInfo
- Publication number
- CN114540588A CN114540588A CN202210116929.5A CN202210116929A CN114540588A CN 114540588 A CN114540588 A CN 114540588A CN 202210116929 A CN202210116929 A CN 202210116929A CN 114540588 A CN114540588 A CN 114540588A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel wire
- pipe section
- wire
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
According to the stainless steel wire annealing and heating process system disclosed by the invention, according to a stainless steel wire walking route and according to the walking route, each stainless steel wire sequentially passes through a respective oven pipe section, an exposed section, a wire inlet pipe section, an annealing furnace pipe section, a cooling pipe section and a wire outlet pipe section; in addition, reducing gas is communicated with the joint of the annealing furnace pipe section and the cooling pipe section, flows out towards the opening of the wire inlet pipe and is combusted, and the stainless steel wire is heated and heated instantly; and heating the subsequent stainless steel wire annealing furnace section to the annealing temperature, and cooling the stainless steel wire annealing furnace section by a cooling pool and then discharging the stainless steel wire annealing furnace section from the wire discharging pipe. The stainless steel wire annealing equipment disclosed by the invention is simple and ingenious in structure, low in manufacturing cost and use cost, high in heating efficiency of the stainless steel wire and good in metallographic structure, and the reducing gas has multiple combined functions.
Description
Technical Field
The invention relates to an annealing technology in a steel wire drawing process.
Background
The heat treatment of stainless steel is generally a solution heat treatment in an annealing furnace, which is commonly called "annealing" and has a temperature range of 1040 to 1120 ℃. The annealing atmosphere is generally pure hydrogen, and the purity of the atmosphere is preferably more than 99.99%, and if another part of the atmosphere is inert gas, the purity can be lower, but the atmosphere must not contain excessive oxygen and water vapor.
2014107925319 provides an annealing process of protofilament for stainless steel welding wire, before drawing wire, the wire rod of protofilament is annealed in an annealing furnace, so that the furnace temperature is gradually increased to the temperature required by the process, and then cooled. This technique may be referred to as the present technique.
2021.9A few processes of cold-rolled stainless steel annealing and pickling line are published in chemical engineering management, and the article introduces that hydrogen is mainly used as protective gas in the industry at present, and because hydrogen is a strong reducing agent, the purer and higher concentration of the protective gas in the furnace is during the annealing treatment of cold-rolled stainless steel, the cleaner and brighter the surface of annealed strip steel. However, due to the explosion tendency of hydrogen, ammonia decomposition gas is generally adopted in the industry at present, so that the variable factor of the protective gas on the purity is large, more control on the gas tightness is needed in the design and use processes of equipment, the concentration of the protective gas is ensured to meet the requirement, and the aim of recrystallization bright annealing is fulfilled. However, the equipment for using the ammonia decomposition gas is only limited to the annealing furnace, and has higher cost and longer period.
Disclosure of Invention
The purpose of the invention is as follows: the stainless steel wire annealing and heating process system is low in equipment construction and use cost, and integrates sectional heating, oxygen resistance protection and cooling synchronous operation.
The technical scheme is as follows:
the stainless steel wire annealing and heating process system provided by the invention is provided with a plurality of stainless steel wires which are arranged in parallel, and each stainless steel wire sequentially passes through a respective oven pipe section (or preheating furnace pipe section), an exposed section, a wire feeding pipe section, an annealing furnace pipe section, a cooling pipe section and a wire discharging pipe section according to a walking route.
The wire inlet pipe section, the annealing furnace pipe section, the cooling pipe section and the wire outlet pipe section are mutually communicated pipelines.
In addition, a reducing gas pipeline is connected between the annealing furnace pipe section and the cooling pipe section (the reducing gas pipeline controls the flow or the pressure through a flow valve), an inlet of the wire inlet pipe section is provided with an opening for the reducing gas to flow out and an opening for the stainless steel wire to enter, an outlet of the wire outlet pipe section is provided with a beam opening (basically closed, the pipe diameter of the tail end of the wire inlet pipe is gradually reduced to the size that the diameter of the stainless steel wire is slightly larger, and the inside of the tail end is provided with an air blocking material, so that only the stainless steel wire can be discharged out, but the reducing gas cannot flow out). So that the protective gas can only flow out towards the direction of the wire inlet pipe section and can not flow out towards the wire outlet pipe section.
The reducing gas is hydrogen and nitrogen decomposed by an ammonia decomposing furnace, and the nitrogen is inert gas and protects the stainless steel wire; or the reducing gas is relatively pure (high purity and difficult explosion) or alkane gas mixed with inert gases such as nitrogen and the like (the combustion value is higher, the safety is better than that of hydrogen, the chemical property is relatively stable, and no alkene or alkyne is active); preferably, the alkane gas is butane, the combustion value of the butane is higher than that of other common gases (in detail, in the attached table I, the combustion value of pentane is higher than that of butane, but the pentane is liquid at normal temperature and cannot be used as a protective gas for reducing property, so the pentane is not considered), and the combustion value is far higher than that of hydrogen, and the heat generated by instantaneous combustion of the pentane is capable of enabling the stainless steel wire to be rapidly heated to 150-350 ℃ in the second heating process. The reducing gas can be ignited and burned when contacting with air, and the reducing gas heats the wire outlet pipe section and transfers heat to the stainless steel wires.
Table one, gas calorific value comparison table:
meanwhile, the discharged reducing gas with certain pressure can prevent oxygen in the atmosphere from entering the wire feeding steel pipe, and the stainless steel wire heated to a higher temperature cannot be oxidized by contacting with the oxygen. The protective reducing atmosphere (hydrogen or alkane gas) can be protected by inert gas (nitrogen) or has higher purity without explosion and oxidation; the water vapor and the nitrogen generated by burning and heating the hydrogen or the alkane gas can be directly evacuated, the reducing gas reversely blocks the oxygen from entering, and meanwhile, the oxygen is burnt and consumed by the hydrogen, so that the stainless steel wire is further ensured not to be oxidized in the wire inlet pipe.
The section of the oven steel pipe is preset and penetrates through the oven, the high-temperature smoke in the oven preheats the oven steel pipe, and the heat of the pipe wall of the oven steel pipe is transferred to the stainless steel wire, so that the stainless steel wire is heated for the first time (the temperature is 100-150 ℃), the water vapor on the surface is dried, and meanwhile, the stainless steel wire does not contact the corrosive smoke in the oven.
The exposed section is a shorter section, so that the water vapor generated by the first heating of the stainless steel wire is diffused to the atmosphere, and the stainless steel wire cannot be oxidized by oxygen in the ambient air due to the lower temperature of the first preheating.
The diameter of the wire feeding steel pipe is about 5-12 times, preferably 5-6 times of the diameter of the stainless steel wire (when the diameter is too small, the amount of reducing gas is small, the heat generated by combustion is insufficient, when the diameter is too large, the amount of combustion gas is too large, the resource consumption is high, tempering is easy to generate, the system safety is influenced, and the combustion temperature is too high, so that the metallurgical structure of the stainless steel wire tends to be reasonable due to the fact that staged heating is not facilitated). A plurality of air outlet holes which are arranged along the length direction are preset on the pipe wall of the wire inlet steel pipe section as openings (preferably, the air outlet holes are downward, when the reducing gas is ignited, the flame is upward to directly heat the pipe wall, and the stainless steel wire in the pipe is indirectly heated for the second time), (the opening of the last pipe end is also used as an inlet of the stainless steel wire), the reducing gas is discharged step by step and reacts with oxygen in the air, the reducing gas is ignited at the air outlet holes to generate heat, the pipe wall is heated, the stainless steel wire is heated for the second time, the stainless steel wire is heated to the second-stage temperature required by annealing in an online instant heating way (the air pressure of the reducing gas is controlled to be 2-10atm, the diameter of the stainless steel wire is 1-2.5mm, the traveling speed of the stainless steel wire is 1-5 m/s, and the traveling quality of the stainless steel wire in unit time and other parameters are passed through the quantity and the combustion value of the reducing gas and the combustion value of the stainless steel wire, the temperature of the stainless steel wire preheated in the oven pipeline can be calculated and controlled to be heated for the second time by 100 ℃ and 400 ℃ to reach the temperature of 200 ℃ and 550 ℃.
Since the diameter of the stainless steel wire after rough drawing of the stainless steel wire for welding is already relatively thin (the temperature of the second heating annealing is easier to control accurately), the temperature generated by the stainless steel wire after the combustion moment of hydrogen or alkane gas (the time of traveling in the wire feeding pipe) can reduce the time and heat required by heating in the annealing furnace, and the production period is shortened. Moreover, the microstructure and the mechanical property of the stainless steel wire both meet the requirements of the production standard of products.
The stainless steel wire continuously travels in the steel pipe section of the annealing furnace, and fuel (such as coal gas or mixed gas of natural gas and air) in the annealing furnace is heated from the outside of the steel pipe of the annealing furnace (for the third time), so that the temperature of the stainless steel wire passing through the stainless steel wire continuously rises to 1100 ℃ below zero, the highest temperature required by the annealing of the stainless steel wire is reached, and the annealing process is realized.
Then, the stainless steel wire passes through a cooling pipe section arranged in a cooling tank (in which a large amount of aqueous solution is stored), and is rapidly cooled to a normal temperature. Finally, the fiber is led out from the outlet of the fiber outlet pipe section.
Waste gas generated by combustion of coal gas or natural gas in the annealing furnace flows back to the oven through the waste gas pipe, wherein residual heat is used for preheating an oven steel pipe in the oven (stainless steel wires are not directly preheated, corrosion of the stainless steel wires by high-temperature waste gas is avoided), further, the stainless steel wires walking in the oven steel pipe are preheated (heated for the first time) to reach certain initial temperature, and then heat for subsequent heating for the second time and the third time is received, heat superposition enables the stainless steel wires to reach high temperature required by annealing, waste heat is fully utilized, consumption of hydrogen (ammonia) or alkane gas is reduced, smoke after waste heat utilization in the oven is directly emptied from an exhaust pipe above the oven, waste heat emission can be reduced, and the environmental temperature of a workshop is basically not influenced.
Has the advantages that:
the annealing and heating of the stainless steel wire of the invention are divided into three stages: (1) the drying oven preheats the steel pipe of the drying oven for heat transfer, so that the water in the cleaning of the stainless steel wire in the previous working procedure is evaporated, and the temperature is raised to 100-150 ℃; (2) heating the wire inlet pipe section, igniting the reductive combustible gas coming out of the air outlet hole in the pipe, and then heating the pipe wall, so that the stainless steel wire in the pipe is heated to 250-450 ℃ by heat transfer; (3) the steel section of the annealing furnace is heated, fuel such as coal gas is used for heating below the tube, and heat is transferred to the stainless steel wire in the annealing furnace, so that the heating temperature reaches 1000-1100 ℃. And the temperature reliability is higher due to three-stage heating, the metallographic structure of the annealed stainless steel wire is better, the subsequent fine wire drawing process (the wire can be drawn again to be 0.3-1.2 mm in diameter, particularly to be 0.3-0.6 mm) is facilitated, and the wire can not be drawn to be fine in diameter by the traditional annealing process.
In the invention, the annealing furnace with higher price and larger volume (for placing the steel wire coil) is not adopted, but a wire feeding pipe and an annealing furnace steel pipe which are independent are adopted to replace a hearth of the annealing furnace, thereby reducing the equipment investment cost. The annealed steel pipe section of the annealing furnace does not need to be subjected to additional temperature reduction treatment by inputting inert gas into a hearth, and only the stainless steel wire is moved to the cooling pipe section and is partially immersed in the water solution of the cooling tank, so that the time and heat source consumed by cooling are reduced, the wire drawing production can be continuously carried out without stopping, and the fuel cost is low.
The stainless steel wire annealing system equipment has the advantages of simple structure, ingenious design, low manufacturing cost and low use cost. The wire drawing production efficiency is high, and the wire drawing machine is safe, reliable, energy-saving and environment-friendly. The hydrogen or alkane gas in the ammonia decomposition gas has four uses: the high temperature required by annealing is generated by burning, the reducing atmosphere in the wire feeding pipe is maintained, the oxygen is consumed and isolated from entering, and the formed steam is discharged without environmental pollution. And the heat source generated by the fuel gas in the annealing furnace is reused, so that the fuel consumption is further saved, and the heat emission is reduced. The cooling water solution is not in direct contact with the stainless steel wire, so that finished products are not easy to pollute, and the leakage is not easy to ensure good production environment of a workshop.
Drawings
FIG. 1 is a schematic perspective view of a system of the present invention;
fig. 2 is a schematic view of a cross-sectional structure of a steel wire in several pipe sections according to the present invention.
In the figure, 1-steel wire; 2-baking oven; 3-bare fiber section; 4-annealing furnace pipe section (annealing furnace cover is omitted in the figure); 5, cooling the pipe section; 6-a silk outlet pipe section; 7-cooling the steel pipe; 8-a reducing gas tube; 9-annealing furnace steel pipe; 10-wire feeding steel pipes; 11-an exhaust pipe; 12-air outlet holes; 13-an exhaust gas pipe; 14-a gas pipe; 15-air tube; 16-blocking; 20-flame; 22-oven steel pipe section.
Detailed Description
The first embodiment is as follows:
the annealing and heating process system for stainless steel wires as shown in fig. 1 comprises a plurality of stainless steel wires arranged in parallel, wherein each stainless steel wire sequentially passes through a respective oven steel pipe section, a bare section, a wire feeding steel pipe section, an annealing furnace steel pipe section, a cooling pipe section and a wire discharging pipe section according to a walking route.
The wire feeding steel pipe section, the annealing furnace steel pipe section, the cooling pipe section and the wire discharging pipe section are mutually communicated pipelines.
A reducing gas pipeline is connected between the steel pipe section of the annealing furnace and the cooling pipe section, an opening for flowing out of the reducing gas and entering of the stainless steel wire is arranged at an inlet of the wire inlet steel pipe section, and a bundle opening is arranged at an outlet of the wire outlet pipe section and can only be used for flowing out of the stainless steel wire and can not be used for flowing out of the reducing gas.
Example two:
as shown in fig. 2, with the apparatus of the first embodiment, a plurality of downward air outlets arranged along the length direction are preset on the tube wall of the wire feeding steel tube section as openings for discharging the reducing gas step by step and reacting with the oxygen in the air, the gas outlets are ignited to generate heat to heat the tube wall, so that the stainless steel wires are heated for the second time, and the temperature of the stainless steel wires is raised to the second stage temperature required by annealing at the online instant heating.
By controlling the parameters of the traveling speed of the steel wire, the diameter data of the wire inlet pipe, the diameter data of the steel wire, the pressure or the flow of alkane (particularly butane) gas and the like, the steel wire can be controlled to be heated section by section, and the final temperature reaches the temperature required by annealing. Then, the steel wire is drawn out after being cooled by the aqueous solution in the cooling bath.
In the second heating, the reducing gas used is n-butane. N-butane is a colorless gas with a slight unpleasant odor. Dissolving in water at room temperature under pressure, and dissolving in alcohol and chloroform. Is inflammable and explosive. Used as solvent, refrigerant and organic synthetic raw material. The oil field gas, the wet natural gas and the cracked gas all contain n-butane and are obtained by separation: (1) the oil field gas and the wet natural gas are separated, pressurized, condensed and separated to obtain liquefied petroleum gas containing propane and butane, and then the liquefied petroleum gas is separated by a distillation method to obtain butane. (2) The tail gas from petroleum cracking equipment is fractionated to separate out C3 fraction, isobutene and C5 fraction, and then fed into front acetonitrile extraction distillation tower from bottom of tower, and the top of tower can obtain over 90% n-butane.
The heat generated during the combustion of the n-butane is calculated by the formula: q = Cm1 Δ T = m2Q (or V2Q, depending on the Q units).
Wherein C is the specific heat of the stainless steel wire 460J/kg, m1 is the mass of the stainless steel wire and the foldable part of the pipe wall traveling in the length of the wire inlet steel pipe, and Delta T is the temperature raised by the second section of the heating stainless steel wire; m2 is the mass of the n-butane gas flowing out of the length of the wire-feeding steel pipe, V2 is the volume of the n-butane gas, and q is the combustion value of the n-butane.
The inner diameter of the wire inlet steel pipe is about 6-10mm (the wall thickness is 0.4-0.6 mm), the length of the wire inlet steel pipe is 100-200mm, the air pressure of n-butane gas is 2-5atm (the pressure at the normal temperature of 25 ℃), the diameter of the stainless steel wire is 1.0-1.5mm, the traveling speed of the stainless steel wire is 1-3 m/s (the flow velocity is assumed to be the same as that of butane), through various parameters of reducing gas and the stainless steel wire, the heat transfer efficiency, the pipe wall of the wire inlet steel pipe is continuously heated (because the pipe wall does not travel, but partial heat flow is dissipated; part of the pipe wall, such as 1/3, the pipe wall needs to be continuously heated, the rest pipe wall is basically constant temperature) and the heat dissipation and other factors, the Delakron PV equation of gas is applied = nrT, the temperature of the stainless steel wire heated for the second time is approximately calculated to be 250 ℃ (or the temperature of the stainless steel wire can be collected by a temperature sensor and transmitted to the PLC controller, the PLC controller controls the air pressure or the ratio of the traveling speed of the stainless steel wire to the flow rate of butane, and the like, and the combination technology realizes the accurate control of the temperature).
And the temperature after the first preheating is added, the temperature of the stainless steel wire in the wire inlet pipe section reaches 200-. And the sectional heating optimizes the metallographic structure of the stainless steel wire, the crystal grains are thin and are uniformly arranged, fine wire drawing can be carried out after cooling, and the diameter of the wire drawing can reach about 0.4-0.6 mm.
Claims (7)
1. The utility model provides a stainless steel wire annealing intensification process systems, has many parallel arrangement's stainless steel wire, its characterized in that: according to the walking route, each stainless steel wire sequentially passes through the respective oven pipe section, the exposed section, the wire inlet pipe section, the annealing furnace pipe section, the cooling pipe section and the wire outlet pipe section; the drying oven pipe section passes through the drying oven, and the annealing furnace pipe section passes through the annealing furnace; the wire inlet pipe section, the annealing furnace pipe section, the cooling pipe section and the wire outlet pipe section are mutually communicated pipelines;
a reducing gas pipeline is connected between the annealing furnace pipe section and the cooling pipe section, and an opening for flowing out the reducing gas and an opening for entering the stainless steel wire are arranged at the inlet of the wire inlet pipe section; the outlet of the wire outlet pipe section is a bundle opening for only allowing the stainless steel wires to go out;
the stainless steel wire is heated and dried by the oven for the first time in the oven pipe section, and is heated by the fuel gas for the third time in the annealing furnace pipe section to the annealing temperature.
2. The stainless steel wire annealing temperature-rising process system according to claim 1, wherein: and discharging reducing gas with the pressure higher than the atmospheric pressure from the opening to prevent oxygen from entering, igniting the reducing gas, and heating the stainless steel wire for the second time.
3. The stainless steel wire annealing temperature-rising process system according to claim 1 or 2, wherein: a plurality of air outlet holes which are arranged downwards along the length direction are preset on the pipe wall of the wire inlet pipe section to serve as openings, so that when the reducing gas is ignited, the flame upwards directly heats the pipe wall, and the stainless steel wires in the pipe are indirectly heated for the second time.
4. The stainless steel wire annealing temperature-rising process system according to claim 1 or 2, wherein: the tail end of the filament outlet pipe is also in a taper pipe shape with the inner diameter gradually reduced, and the plugging material is pre-arranged in the taper pipe shape.
5. The stainless steel wire annealing temperature-increasing process system according to claim 2, 3 or 4, wherein: the reducing gas is n-butane.
6. The stainless steel wire annealing temperature-rising process system according to claim 5, wherein: the air pressure is 2-5atm, the diameter of the stainless steel wire is 1.2-1.6mm, the pipe diameter of the wire inlet pipe is 6-10mm (the wall thickness is 0.4-0.6 mm), and the traveling speed of the stainless steel wire is 1-3 m/s; the second heating can cause the temperature of the stainless steel wire to rise to 150 ℃ and 250 ℃.
7. The stainless steel wire annealing temperature-increasing process system according to claim 1, 2 or 5, wherein: the waste gas generated by the heating device flows into the oven through the waste gas pipe, wherein the residual heat is used for preheating an oven steel pipe in the oven, and the heat of the oven steel pipe is transferred to the stainless steel wire passing through the oven steel pipe for primary heating.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210116929.5A CN114540588A (en) | 2022-02-08 | 2022-02-08 | Stainless steel wire annealing and heating process system |
| CN202211559105.1A CN115679048A (en) | 2022-02-08 | 2022-12-06 | Stainless steel wire drawing machine graded heating annealing oxygen-blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210116929.5A CN114540588A (en) | 2022-02-08 | 2022-02-08 | Stainless steel wire annealing and heating process system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114540588A true CN114540588A (en) | 2022-05-27 |
Family
ID=81673445
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210116929.5A Pending CN114540588A (en) | 2022-02-08 | 2022-02-08 | Stainless steel wire annealing and heating process system |
| CN202211559105.1A Pending CN115679048A (en) | 2022-02-08 | 2022-12-06 | Stainless steel wire drawing machine graded heating annealing oxygen-blocking system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211559105.1A Pending CN115679048A (en) | 2022-02-08 | 2022-12-06 | Stainless steel wire drawing machine graded heating annealing oxygen-blocking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114540588A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984404B (en) * | 2023-07-28 | 2024-04-26 | 浙江创特新材科技有限公司 | Movable multi-section thin tungsten wire heating module and high-strength thin tungsten wire drawing equipment |
-
2022
- 2022-02-08 CN CN202210116929.5A patent/CN114540588A/en active Pending
- 2022-12-06 CN CN202211559105.1A patent/CN115679048A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN115679048A (en) | 2023-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105299652B (en) | Emission coal gas utilizes system and method | |
| CN100507366C (en) | Equipment and technique for treating waste liquid from production of acrylonitrile | |
| CN102077025A (en) | Reliable ignition of hot oxygen generator | |
| CN108699612A (en) | The method that the reducing gas of hydrogen is supplied to blast-furnace shaft portion | |
| CN103290191A (en) | Device for recycling afterheat of thermal treatment furnace | |
| CN114540588A (en) | Stainless steel wire annealing and heating process system | |
| RU2657561C2 (en) | Method for combustion of low-grade fuel | |
| US20220081308A1 (en) | Process for producing potassium sulphate | |
| CN203295556U (en) | Heat-treatment furnace system for waste heat recovery | |
| CN103791617B (en) | Intrinsic safety type nonflame water jacket furnace | |
| CN110608438A (en) | Multi-stage burner, molten steel tank preheating equipment and using method thereof | |
| CN206001919U (en) | Ultra-low NOx emission environmental protection and energy saving tubular heater | |
| CN210108048U (en) | Combustion-supporting oxygen and nitrogen distribution system device | |
| WO1988004397A1 (en) | A method of preheating scrap | |
| CN212719740U (en) | Multi-stage combustor and molten steel tank preheating equipment adopting same | |
| CN204115495U (en) | A kind of carbonization treatment apparatus | |
| CN208952122U (en) | A kind of device reducing the nitrogen oxides in flue gases of cock oven by waste gas circulation | |
| CN105371670A (en) | Reducing and reusing device for multi-oxygen combustion smoke of industrial kiln and operation method thereof | |
| JP2019168118A (en) | Exhaust gas using system | |
| IT201900015683A1 (en) | MODULABLE SYSTEM FOR THE GENERATION OF ENDOGAS WITH SETTABLE CARBON MONOXIDE CONTENT | |
| CN205119035U (en) | Pluralities of fuel gas combustion ware | |
| CN213396522U (en) | High-efficiency energy-saving blast furnace gas chamber type heating furnace with double heat storage heating modes | |
| CN204848270U (en) | Sulfur recovery system for petrochemical field | |
| CN114405045B (en) | Stabilizer tail gas treatment mode | |
| CN211886767U (en) | Hot air circulation heating utilization system of reaction kettle body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220527 |
|
| WD01 | Invention patent application deemed withdrawn after publication |