阅读说明：本技术 一种纯感应加热模式下合金控制工艺的设计 (Design of alloy control process in pure induction heating mode ) 是由 俞炜 黄久贵 郭宏 朱广永 于 2021-06-29 设计创作，主要内容包括：本发明属于产品质量技术领域,具体的说是一种纯感应加热模式下合金控制工艺的设计,该控制工艺包括以下步骤：S1、基板表面电镀锡：通过电镀的方式将锡通过电化学反应均匀的沉积在带钢表面,在带钢表面形成镀锡层；S2、软熔形成合金层：根据产品用途标准化感应加热设备的工艺参数设置,并通过感应加热设备对S1中的带钢进行软熔形成锡铁合金层,从达到理想的合金与纯锡层厚度；S3、镀锡板的获取：对S2中软熔后的基板进行后续处理进而获得所需要的镀锡板；利用合金形成的原理并结合感应加热的机理,根据用户定制产品的用途,标准化感应加热器的工艺参数设置,从而达到理想的合金与纯锡层厚度。(The invention belongs to the technical field of product quality, and particularly relates to a design of an alloy control process in a pure induction heating mode, which comprises the following steps: s1, electroplating tin on the surface of the substrate: uniformly depositing tin on the surface of the strip steel through an electrochemical reaction in an electroplating mode, and forming a tin-plated layer on the surface of the strip steel; s2, reflow forming an alloy layer: standardizing the process parameter setting of the induction heating equipment according to the product application, and performing reflow melting on the strip steel in S1 by the induction heating equipment to form a tin-iron alloy layer so as to reach the ideal thickness of the alloy and pure tin layer; s3, obtaining a tin plate: carrying out subsequent treatment on the substrate reflowed in the step S2 to obtain a required tin plate; the process parameter setting of the induction heater is standardized according to the use of a customized product by utilizing the principle of alloy formation and combining the mechanism of induction heating, so that the ideal thickness of the alloy and the pure tin layer is achieved.)

1. The design of the alloy control process in the pure induction heating mode is characterized in that: the control process comprises the following steps:

s1, electroplating tin on the surface of the substrate: uniformly depositing tin on the surface of the strip steel through an electrochemical reaction in an electroplating mode, and forming a tin-plated layer on the surface of the strip steel;

s2, reflow forming an alloy layer: standardizing the process parameter setting of induction heating equipment according to the product application, and performing reflow melting on the strip steel in S1 by the induction heating equipment to combine tin and iron on the surface of the strip steel to form a tin-iron alloy layer, so as to achieve the ideal thickness of the alloy and pure tin layer;

s3, obtaining a tin plate: and (5) performing subsequent treatment on the substrate subjected to reflow in the step S2 to form a bright mirror layer, a passivation film layer and an oil film layer on the surface of the substrate, so as to obtain the required tin plate.

2. The design of an alloy control process in a pure induction heating mode according to claim 1, characterized in that: setting basic parameters of the induction heating coil of the induction heating apparatus in S2:

when the thickness is more than 0.3mm, the open loop coefficient is 0.9, the coil coefficient is 117.812, the strip steel coefficient is-0.225, the KCL (constant) is 1.46, and the radiation coefficient is 0.68;

when the thickness is less than 0.299mm, the open loop coefficient is 0.9, the coil coefficient is 117.812, the strip steel coefficient is-0.205, the KCL (constant) is 1.46, and the radiation coefficient is 0.3.

3. The design of an alloy control process in a pure induction heating mode according to claim 2, characterized in that: and when the product in the S2 is used as an aerosol can, setting the process parameters of the induction heating equipment as follows: thickness of the alloy: 0.3mm-0.5mm, coil outlet temperature: 260-268 ℃, height of coil outlet from water surface: 4.2m-4.6m, unit speed: 250m/min-400 m/min.

4. The design of an alloy control process in a pure induction heating mode according to claim 3, characterized in that: when the product in the S2 is used as a common material, the process parameters of the induction heating equipment are set as follows: thickness of the alloy: 0.4mm-0.7mm, coil outlet temperature: 265-275 ℃, height of coil outlet from water surface: 4.5m-5.0m, unit speed: 250m/min-400 m/min.

5. The design of an alloy control process in a pure induction heating mode according to claim 4, characterized in that: when the product in the S2 is used for certain corrosion resistance, the process parameters of the induction heating equipment are set as follows: thickness of the alloy: 0.5mm-1.0mm, coil outlet temperature: 270-280 ℃, height of coil outlet from water surface: 5.0m-6.0m, unit speed: 250m/min-400 m/min.

6. The design of an alloy control process in a pure induction heating mode according to claim 5, characterized in that: and when the product in the S2 is used as a high-tin-layer tin plate, setting the process parameters of the induction heating equipment as follows: thickness of the alloy: 1.2mm, coil outlet temperature: 285-300 ℃, height of coil outlet from water surface: 6.5m-8.0m, unit speed: 100m/min-250 m/min.

7. The design of an alloy control process in a pure induction heating mode according to claim 6, characterized in that: the step of electroplating tin on the surface of the substrate in the step S1 comprises the following specific steps:

s11, alkali washing: carrying out alkali cleaning on the substrate through an alkali cleaning groove so as to remove residual oil on the surface of the substrate;

s12, acid washing: the substrate in S11 is pickled by the pickling tank, thereby activating the substrate surface;

s13, electroplating: the substrate in S12 was electroplated by an electroplating bath to uniformly deposit tin on the strip surface.

8. The design of an alloy control process in a pure induction heating mode according to claim 7, characterized in that: the process steps of the bright mirror layer formed in the step S3 are as follows:

s31, hardening: and introducing the substrate subjected to induction heating into a water tank for quenching, thereby forming a bright mirror layer on the surface of the substrate.

9. The design of an alloying control process in pure induction heating mode as claimed in claim 8, wherein: the process steps of the passivation film layer formed in the step S3 are as follows:

s32, passivation: the substrate in S31 is electrolyzed to form a passivation film on the surface of the tin layer by electrolysis.

10. The design of an alloying control process in pure induction heating mode as claimed in claim 9, wherein: the oil film layer formed in the step S3 comprises the following steps:

s33, oiling: a layer of oil film is formed on the surface of the tinning plate by adopting an electrostatic oiling mode, so that the effect of lubricating and preventing scratches is achieved.

Technical Field

The invention relates to the technical field of product quality, in particular to a design of an alloy control process in a pure induction heating mode.

Background

The tin plate surface coating is divided into a pure tin layer and a tin-iron alloy layer, the thicknesses of the two component coatings are different in distribution, so that different effects are respectively generated on subsequent products, and if the coatings cannot be effectively controlled, the final use experience of a user is influenced, and the quality of a finished product is finally influenced.

At present, in the prior art, mature research is conducted on alloy control in a resistance-type heating mode and a combined-type heating mode in the industry, but an alloy control process in a pure-induction heating mode is still blank, so that a design of the alloy control process in the pure-induction heating mode is provided for solving the problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problem that the prior art has mature research on alloy control in a resistance-type heating mode and a combined-type heating mode, but the alloy control process in a pure-induction heating mode still falls into the blank, the invention provides a design of the alloy control process in the pure-induction heating mode.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a design of an alloy control process in a pure induction heating mode, which comprises the following steps:

s1, electroplating tin on the surface of the substrate: uniformly depositing tin on the surface of the strip steel through an electrochemical reaction in an electroplating mode, and forming a tin-plated layer on the surface of the strip steel;

s2, reflow forming an alloy layer: standardizing the process parameter setting of induction heating equipment according to the product application, and performing reflow melting on the strip steel in S1 by the induction heating equipment to combine tin and iron on the surface of the strip steel to form a tin-iron alloy layer, so as to achieve the ideal thickness of the alloy and pure tin layer;

s3, obtaining a tin plate: and (5) performing subsequent treatment on the substrate subjected to reflow in the step S2 to form a bright mirror layer, a passivation film layer and an oil film layer on the surface of the substrate, so as to obtain the required tin plate.

Preferably, the induction heating coil basic parameter setting of the induction heating apparatus in S2:

when the thickness is more than 0.3mm, the open loop coefficient is 0.9, the coil coefficient is 117.812, the strip steel coefficient is-0.225, the KCL (constant) is 1.46, and the radiation coefficient is 0.68;

when the thickness is less than 0.299mm, the open loop coefficient is 0.9, the coil coefficient is 117.812, the strip steel coefficient is-0.205, the KCL (constant) is 1.46, and the radiation coefficient is 0.3.

Preferably, when the product in S2 is used as an aerosol can, the process parameters of the induction heating device are set as follows: thickness of the alloy: 0.3mm-0.5mm, coil outlet temperature: 260-268 ℃, height of coil outlet from water surface: 4.2m-4.6m, unit speed: 250m/min-400 m/min.

Preferably, when the product in S2 is used as a common material, the process parameters of the induction heating equipment are set as follows: thickness of the alloy: 0.4mm-0.7mm, coil outlet temperature: 265-275 ℃, height of coil outlet from water surface: 4.5m-5.0m, unit speed: 250m/min-400 m/min.

Preferably, when the product in S2 is used for certain corrosion resistance, the process parameters of the induction heating equipment are set as follows: thickness of the alloy: 0.5mm-1.0mm, coil outlet temperature: 270-280 ℃, height of coil outlet from water surface: 5.0m-6.0m, unit speed: 250m/min-400 m/min.

Preferably, when the product in S2 is used as a high-tin-layer tin plate, the process parameters of the induction heating equipment are set as follows: thickness of the alloy: 1.2mm, coil outlet temperature: 285-300 ℃, height of coil outlet from water surface: 6.5m-8.0m, unit speed: 100m/min-250 m/min.

Preferably, the step of electroplating tin on the surface of the substrate in S1 includes the following specific steps:

s11, alkali washing: carrying out alkali cleaning on the substrate through an alkali cleaning groove so as to remove residual oil on the surface of the substrate;

s12, acid washing: the substrate in S11 is pickled by the pickling tank, thereby activating the substrate surface;

s13, electroplating: the substrate in S12 was electroplated by an electroplating bath to uniformly deposit tin on the strip surface.

Preferably, the process steps of the bright mirror layer formed in S3 are as follows:

s31, hardening: and introducing the substrate subjected to induction heating into a water tank for quenching, thereby forming a bright mirror layer on the surface of the substrate.

Preferably, the process steps of the passivation film layer formed in S3 are as follows:

s32, passivation: the substrate in S31 is electrolyzed to form a passivation film on the surface of the tin layer by electrolysis.

Preferably, the oil film layer formed in S3 includes the following steps:

s33, oiling: a layer of oil film is formed on the surface of the tinning plate by adopting an electrostatic oiling mode, so that the effect of lubricating and preventing scratches is achieved.

The invention has the advantages that:

1. in the invention, the process parameter setting of the induction heater is standardized according to the application of a customized product by utilizing the principle of alloy formation and combining the induction heating mechanism, so that the control of the thickness of the coating on the surface of the tin plate is realized, and the ideal thickness of the alloy and the pure tin layer is achieved;

2. in the invention, before the surface of the substrate is plated with tin, the substrate is sequentially subjected to alkali washing and acid washing, so that residual oil on the surface of the substrate is removed and the surface of the substrate is activated, thus tin is easy to be uniformly deposited on strip steel to avoid forming a tin layer during electroplating, and the substrate is passivated and oiled after induction heating of the substrate is completed, so that a passivation film layer and an oil film layer are formed on the surface of the substrate to protect the substrate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a block diagram of a control process according to the present invention;

FIG. 2 is a schematic diagram of an alloy layer formation process;

FIG. 3 is a schematic view of the surface coating of a tin plate before reflow;

FIG. 4 is a schematic view of the surface coating of the tin plate after reflow.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a design of an alloying control process in a pure induction heating mode includes the following steps:

s1, electroplating tin on the surface of the substrate: uniformly depositing tin on the surface of the strip steel through an electrochemical reaction in an electroplating mode, and forming a tin-plated layer on the surface of the strip steel;

s2, reflow forming an alloy layer: standardizing the process parameter setting of induction heating equipment according to the product application, and performing reflow melting on the strip steel in S1 by the induction heating equipment to combine tin and iron on the surface of the strip steel to form a tin-iron alloy layer, so as to achieve the ideal thickness of the alloy and pure tin layer;

s3, obtaining a tin plate: and (5) performing subsequent treatment on the substrate subjected to reflow in the step S2 to form a bright mirror layer, a passivation film layer and an oil film layer on the surface of the substrate, so as to obtain the required tin plate.

See table one for showing: setting basic parameters of the induction heating coil of the induction heating apparatus in S2:

when the thickness is more than 0.3mm, the open loop coefficient is 0.9, the coil coefficient is 117.812, the strip steel coefficient is-0.225, the KCL (constant) is 1.46, and the radiation coefficient is 0.68;

when the thickness is less than 0.299mm, the open loop coefficient is 0.9, the coil coefficient is 117.812, the strip steel coefficient is-0.205, the KCL (constant) is 1.46, and the radiation coefficient is 0.3.

Table one: induction heating coil base parameter setting

See table two for details: and when the product in the S2 is used as an aerosol can, setting the process parameters of the induction heating equipment as follows: thickness of the alloy: 0.3mm-0.5mm, coil outlet temperature: 260-268 ℃, height of coil outlet from water surface: 4.2m-4.6m, unit speed: 250m/min-400 m/min.

See table two for details: when the product in the S2 is used as a common material, the process parameters of the induction heating equipment are set as follows: thickness of the alloy: 0.4mm-0.7mm, coil outlet temperature: 265-275 ℃, height of coil outlet from water surface: 4.5m-5.0m, unit speed: 250m/min-400 m/min.

See table two for details: when the product in the S2 is used for certain corrosion resistance, the process parameters of the induction heating equipment are set as follows: thickness of the alloy: 0.5mm-1.0mm, coil outlet temperature: 270-280 ℃, height of coil outlet from water surface: 5.0m-6.0m, unit speed: 250m/min-400 m/min.

See table two for details: and when the product in the S2 is used as a high-tin-layer tin plate, setting the process parameters of the induction heating equipment as follows: thickness of the alloy: 1.2mm, coil outlet temperature: 285-300 ℃, height of coil outlet from water surface: 6.5m-8.0m, unit speed: 100m/min-250 m/min.

Table two: alloy thickness process parameter control meter under induction heating mode

The step of electroplating tin on the surface of the substrate in the step S1 comprises the following specific steps:

s11, alkali washing: carrying out alkali cleaning on the substrate through an alkali cleaning groove so as to remove residual oil on the surface of the substrate;

s12, acid washing: the substrate in S11 is pickled by the pickling tank, thereby activating the substrate surface;

s13, electroplating: the substrate in S12 was electroplated by an electroplating bath to uniformly deposit tin on the strip surface.

The process steps of the bright mirror layer formed in the step S3 are as follows:

s31, hardening: and introducing the substrate subjected to induction heating into a water tank for quenching, thereby forming a bright mirror layer on the surface of the substrate.

The process steps of the passivation film layer formed in the step S3 are as follows:

s32, passivation: the substrate in S31 is electrolyzed to form a passivation film on the surface of the tin layer by electrolysis.

The oil film layer formed in the step S3 comprises the following steps:

s33, oiling: a layer of oil film is formed on the surface of the tinning plate by adopting an electrostatic oiling mode, so that the effect of lubricating and preventing scratches is achieved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.