Method for manufacturing parts for non-sticking roll of coating layer in co-line production of aluminum-silicon sheet and galvanized sheet

Abstract

The present application relates to the technical field of hot forming, and specifically discloses a method for manufacturing parts of a non-sticking roller of a plated layer in co-line production of aluminum-silicon plates and galvanized plates, comprising the following steps: S1: cutting to obtain a plate material; S2: carrying out a heat treatment of the plate material in a staggered zone or a partitioned zone; and S3: hot pressing or hot bath stamping the plate material to obtain a part; the step S2 comprises four heating and holding zones, namely a first heating and holding zone, a second heating and holding zone, a third heating and holding zone, and a fourth heating and holding zone. The present application can effectively solve the problem of mutual sticking of the plated layers of the zinc-based plated layer plate and the aluminum-silicon plated layer plate in co-line production, and obtain a zinc-based plated layer plate with no sticking of the aluminum-silicon particles on the surface and an aluminum-silicon plated layer part with no golden point-shaped and white point-shaped objects on the surface. Meanwhile, compared with the prior art, the heating time of the present application is significantly shortened, the production rhythm is optimized, no special coating is needed, and the production cost is lower.

Description

Technical Field

[0001] This invention relates to the field of thermoforming technology, and specifically discloses a method for manufacturing components using aluminum-silicon plates and galvanized plates on the same production line to produce non-stick coating rollers. Background Technology

[0002] Driven by the principles of lightweighting and safety in automobiles, ultra-high-strength hot-formed steel is increasingly used in vehicle bodies. While lightweight materials such as aluminum alloys, magnesium alloys, and titanium alloys can also reduce overall vehicle weight and fuel consumption, their cost-effectiveness is not as high as that of high-strength steel. Currently, the high-strength steels that are already widely used are mainly bare steel sheets and aluminum-silicon coated sheets. Bare steel sheets suffer from oxidation and decarburization at high temperatures, which not only affects mold life but also results in poor corrosion resistance of the formed parts. Although aluminum-silicon coated sheets can improve the corrosion resistance of the formed parts to some extent, they do not provide cathodic protection. Therefore, the improvement in corrosion resistance of the coating is limited.

[0003] Compared to conventional bare plates and aluminum-silicon coated plates, zinc-based coated plate parts offer cathodic protection, with corrosion resistance more than three times that of aluminum-silicon coatings. Meanwhile, as universities, steel mills, component manufacturers, and OEMs continue to increase their research investment in the hot forming process of zinc-based coated plates, the problem of LMIE (Lead-Lead-Interference-Induced) phenomenon and subsequent deep microcracks that occurs during direct hot forming of zinc-based coated plates is gradually being resolved. Some component companies have even begun to industrialize the direct hot forming process for zinc-based coated plates.

[0004] However, based on the current production line, the production of zinc-based coated steel sheets inevitably involves co-production with aluminum-silicon coated steel sheets, resulting in a serious problem of zinc-based coating sticking to the rollers. This causes granular residue on the surface of the parts, affecting subsequent electrophoretic coating processes. Therefore, solving the problem of zinc-based coating sticking to the rollers is of great significance in order to increase the proportion of thermoformed zinc-based coated parts on the car body and promote the application of zinc-based coated steel sheet materials.

[0005] Patent CN116855870A discloses a coated hot-stamped steel part and its preparation method. It employs an n-segment heat-insulating step design and calculates the ratio of the interdiffusion layer thickness to the surface alloy layer thickness in the sheet metal, comparing this value with a preset value to determine whether the sheet metal has completed austenitization. This method also solves the technical problem of coating sticking to the rollers during the heating process in existing coated hot-stamped steel parts. The key feature is that the ratio of the interdiffusion layer thickness to the surface alloy layer thickness in the first austenitized sheet metal is compared with a preset value. The size is 0.1, used to determine whether to perform different modes of austenitizing heat treatment on several sheet materials by gradually increasing the number of insulation steps, until the nth sheet material is subjected to the nth mode of austenitizing heat treatment with n insulation steps, so that the ratio of the interdiffusion layer thickness to the surface alloy layer thickness in the nth sheet material reaches a preset ratio, resulting in the target austenitized sheet material with an endpoint temperature >840℃, an austenitizing heat treatment time of <12min, a stamping die temperature of <100℃, and a cooling rate of >27℃ / s. Based on current production processes, the heating time of this patent is relatively long, which will significantly extend the production cycle.

[0006] Patent CN115156845A discloses a method for producing galvanized hot-formed steel to prevent the coating from sticking to the rollers. Its characteristic feature is that the stamping heating process is divided into three stages: the first stage heats the sheet to 250–300°C, holds it at that temperature for 2–3 minutes, and the heating rate is 10–30°C / s; the second stage heats the sheet to 600–650°C, holds it at that temperature for 3–5 minutes, and the heating rate is 5–15°C / s; the third stage heats the sheet to 880–920°C, holds it at that temperature for 5–10 minutes, and the heating rate is 5–15°C / s. It uses a conventional hot stamping process with a holding time of 10–20 seconds, a quenching cooling rate of 30–60°C / s, and a die exit temperature of 200–300°C, followed by air cooling to room temperature. However, this patent extends the heating time, which is very detrimental to production cycle control.

[0007] Patent CN116219271A discloses an aluminum-silicon coated steel sheet, a hot-formed component, and a manufacturing method thereof. The aluminum-silicon coated steel sheet is characterized by a coating layer on the surface of the aluminum-silicon coating. This coating layer contains C, H, O, N, and Si elements but does not contain P element. The Si element content in the coating layer is 10-1000 mg / m². The manufacturing method is characterized by heat treatment in a furnace: controlling the heating rate of the billet from room temperature to 700°C at 830°C / s, and the heating rate from 700°C to 900°C at 110°C / s, with the total residence time of the billet in the heat treatment furnace controlled at 1-15 minutes. While this patent can solve the roller sticking problem to some extent, its raw materials require a specially formulated coating, increasing production costs. Furthermore, it only applies to the roller sticking problem of aluminum-silicon coated sheets and lacks universal applicability.

[0008] Therefore, existing solutions for roller sticking in thermoformed coated sheets are mostly applicable to aluminum-silicon sheets. These solutions primarily achieve less or no roller sticking by significantly extending the heating time of the sheet in the furnace or by using aluminum-silicon coated sheets with special coating materials. However, for zinc-based coated sheets, co-production with aluminum-silicon coated sheets not only produces granular aluminum-silicon sticking on the zinc-based sheet surface but also severely impacts the aluminum-silicon coated sheet itself. During the production of aluminum-silicon products, aluminum-silicon sticking manifests as golden-yellow spots and white speckled deposits in certain areas of the zinc plating, severely affecting normal production. Existing patented technologies are too costly and cannot solve the roller sticking problem during co-production.

[0009] Since the existing technologies mentioned above cannot effectively solve the problem of roller sticking during the co-production of coatings on aluminum-silicon plates and galvanized plates, the present invention aims to propose a component manufacturing method for preventing roller sticking during the co-production of coatings on aluminum-silicon plates and galvanized plates. Summary of the Invention

[0010] In existing hot-forming roller hearth furnaces for producing aluminum-silicon coated products, it is inevitable that the aluminum-silicon coating will adhere to the ceramic rollers. Similarly, the problem of coating sticking to the rollers also occurs when producing zinc-based coated products. When aluminum-silicon coated products and zinc-based coated products are produced on the same production line, zinc plating sticking to the rollers and aluminum-silicon coating inevitably leads to granular residue on the surface of the zinc-based coated products, greatly affecting subsequent coating and electrophoresis processes. Conversely, zinc plating sticking to the rollers results in golden-yellow and white spots on the surface of the aluminum-silicon coated products, which corrodes the aluminum-silicon coating and causes significant color variations in the products. See Figure 1-7 And Table 1-2.

[0011] Based on the physical properties of the melting points of zinc-based coated plates and aluminum-silicon coated plates, as well as the differences in the alloying phase transformation of the coatings during heating, this patent employs a staggered heating process and different forming methods to reduce the problem of coatings sticking to rollers when the two types of coated plates are produced on the same line. The core of this patent solution is to effectively solve the problem of zinc-based coated plates sticking to aluminum-silicon and aluminum-silicon coated plates sticking to zinc coatings by controlling the heating temperature distribution, heating time, and forming method of aluminum-silicon coated plates and zinc-based coated plates, thereby realizing the co-line production of zinc-based coated plates and aluminum-silicon coated plates.

[0012] This invention discloses a method for manufacturing components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plates and galvanized plates, employing the following technical solution:

[0013] A method for manufacturing a component for producing a non-stick coating roller on a co-line production line of aluminum-silicon sheet and galvanized sheet includes the following steps:

[0014] S1: Cutting the material to obtain sheet metal;

[0015] S2: Perform heat treatment on the sheet material in a staggered or zoned manner;

[0016] S3: Parts are obtained by hot pressing or hot bath stamping of sheet metal;

[0017] Step S2 includes four heating and heat preservation zones, namely the first heating and heat preservation zone, the second heating and heat preservation zone, the third heating and heat preservation zone, and the fourth heating and heat preservation zone;

[0018] The process parameters for the first heating and insulation zone are: heating and insulation temperature T of the aluminum-silicon coated plate. 1Al-Si =550℃~870℃, heating time T1′ Al-Si =0.35τ; the corresponding heating and insulation temperature T of the zinc-based coated plate. 1Zn =300℃~450℃, heating time T1′ Zn =0.2τ;

[0019] The process parameters for the second heating and insulation zone are: heating and insulation temperature T of the aluminum-silicon coated plate. 2Al-Si =870℃~900℃, heating time T2′ Al-Si =0.15τ; the corresponding heating and insulation temperature T of the zinc-based coated plate. 2Zn = 450℃~700℃, heating time T2′ Zn =0.2τ;

[0020] The process parameters for the third heating and insulation zone are: heating and insulation temperature T of the aluminum-silicon coated plate. 3Al-Si =900℃~930℃, heating time T3′ Al-Si =0.2τ; the corresponding heating and insulation temperature T of the zinc-based coated plate. 3Zn =700℃~880℃, heating time T3′ Zn =0.35τ;

[0021] The process parameters for the fourth heating and insulation zone are: heating and insulation temperature T of the aluminum-silicon coated plate. 4Al-Si =930℃~950℃, heating time T4′ Al-Si =0.3τ; the corresponding heating and insulation temperature T of the zinc-based coated plate. 4Zn =880℃~910℃, heating time T4′ Zn =0.25τ;

[0022] τ is the heating time (in seconds / s), and the formula for calculating τ is as follows:

[0023] Aluminum-silicon coated plate: τ=T×100+150+μ;

[0024] Zinc-based coated steel plate: τ=t×100+130+μ;

[0025] In the above formula, t represents the material thickness (in millimeters / mm), and μ represents the coating quality influence factor. The values ​​of μ are as follows:

[0026] Aluminum-silicon coated plates: coating weight per side ≤ 75g / m 2 At that time, μ = 20; the single-sided mass of the coating is ≥ 85 g / m 2 At that time, μ = 35; the single-sided mass of the coating is between 75 g / m 2 ~85g / m 2 When μ is between 28 and 28, μ = 28 ± 2.

[0027] Zinc-based coated steel sheet: Coating weight per side ≤ 75g / m 2 At that time, μ = 40; the single-sided mass of the coating is ≥ 85 g / m 2 At that time, μ = 65; the single-sided mass of the coating is between 75 g / m. 2 ~85g / m 2 When μ is between 50 and 3, μ = 50 ± 3.

[0028] By employing a stepped, staggered heating method to fully alloy the coatings on both aluminum-silicon and galvanized steel sheets, the problem of roller sticking during co-line production is solved. Simultaneously, the high cooling rate of the hot tub stamping process is fully utilized to ensure that the produced zinc-based coated steel parts meet automotive standards. Stepped, staggered heating refers to producing aluminum-silicon coated steel sheets first, followed by zinc-based coated steel sheets, or vice versa. Different heat treatment processes and stamping methods are used for these two materials, fully utilizing the alloying characteristics of the coatings. This reduces the amount of coating adhering to the ceramic rollers while preventing roller sticking in the same area. Furthermore, the heat treatment time required for the sheets in the roller hearth furnace is reduced, significantly optimizing the production cycle.

[0029] Preferably, in step S3, the aluminum-silicon coated plate is formed by hot stamping die.

[0030] Preferably, in the hot stamping operation of the aluminum-silicon coated plate, the cooling water temperature is 6℃~10℃, the cooling rate v≥30℃ / s, and the holding time meets T″. Al-Si ≥t×4+2, the part demolding temperature is 150℃~250℃.

[0031] Preferably, in step S3, the zinc-based coated plate is formed by hot bath stamping using a hot bath mold.

[0032] Preferably, in the hot bath stamping operation of the zinc-based coated sheet, only the upper die is circulated with cooling water, the cooling water temperature is 6℃~10℃, and the holding time meets T″. Zn ≥t×3+2.5, the hot bath temperature satisfies T 热浴 ≥100-9.5t, the pre-cooling medium is a water-oil mixture, and the part demolding temperature is 80℃~200℃.

[0033] Preferably, the zinc-based coated plate includes, but is not limited to, any one of GI plate, GA plate, and GL plate.

[0034] Preferably, the thickness of the aluminum-silicon plate and the zinc-based coated plate is 1.0 mm to 2.0 mm. After forming, the zinc-based coated plate parts have higher tensile strength and yield strength than the aluminum-silicon coated plate parts.

[0035] Preferably, the aluminum-silicon coating does not require subsequent shot blasting, while the zinc-based coating requires shot blasting.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] This invention effectively solves the problem of adhesion between zinc-based coated plates and aluminum-silicon coated plates during co-production, resulting in zinc-based coated plates with no adhering aluminum-silicon particles and aluminum-silicon coated parts free of surface golden or white specks. Furthermore, compared to existing technologies, this invention significantly reduces heating time, optimizes production cycle time, eliminates the need for special coatings, and lowers production costs. Attached Figure Description

[0038] Figure 1 To illustrate the large-area sticky roller galvanizing process on the aluminum-silicon coated sheet as a comparison, white and golden yellow dotted areas were produced.

[0039] Figure 2 To compare the zinc-based coated sheet parts, the sticking rollers form aluminum-silicon granules;

[0040] Figure 3 White and golden-yellow speckled adhesive rollers are shown as a comparative example of aluminum-silicon coated plates.

[0041] Figure 4 for Figure 3 Microscopic morphology of region 1;

[0042] Figure 5 for Figure 3 Microscopic morphology of region 2;

[0043] Figure 6 for Figure 3 Microscopic morphology of region 3;

[0044] Figure 7 for Figure 3 Microscopic morphology of region 4;

[0045] Figure 8 The average thickness of the coating after zinc plating corrosion occurs on aluminum-silicon parts used as a comparative example.

[0046] Figure 9 The average thickness of the zinc-based aluminum-silicon coating on the unbonded roller is shown in the example.

[0047] Figure 10 The average thickness of the zinc-based plated part in Example 1;

[0048] Figures 11 to 14 The microcrack morphology and penetration depth of the zinc-based plated parts in Examples 1 to 4 are shown. Detailed Implementation

[0049] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. It should be understood that the specific embodiments are only used to explain the present invention, but the embodiments are not intended to limit the present invention.

[0050] In this invention, unless otherwise stated, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0051] In this invention, unless otherwise stated, when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the said feature, integral, step, or operation, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, or combinations thereof.

[0052] In this invention, unless otherwise stated, conditions not specifically specified in the embodiments shall be performed under conventional conditions or conditions recommended by the manufacturer.

[0053] For similar hot bath stamping processes described in the following embodiments, please refer to Chinese patents CN202111073382.7 and CN202310195770.5.

[0054] Example 1

[0055] The aluminum-silicon coated plate material has a thickness of 1.4 mm and a coating weight of 75 g / m². 2 That is, μ is taken as 20, and τ is calculated to be 329; the thickness of the zinc-based coated plate material is 1.2 mm, and the coating mass is 65 g / m³. 2 That is, μ is taken as 40, and τ = 290 is calculated; the heat treatment temperature and time from the first heating and holding zone to the fourth heating and holding zone are as follows:

[0056] Aluminum-silicon coated plate: Zone 1 (550℃~870℃, 108.5s), Zone 2 (870℃~900℃, 46.5s), Zone 3 (900℃~930℃, 62s), Zone 4 (930℃~950℃, 93s); holding time is 10s.

[0057] Zinc-based coated steel sheet: Zone 1 (300℃~450℃, 58s), Zone 2 (450℃~700℃, 58s), Zone 3 (700℃~880℃, 101.5s), Zone 4 (880℃~910℃, 72.5s); Hot bath temperature 90℃, pressure holding time 7s.

[0058] Example 2

[0059] The aluminum-silicon coated plate material has a thickness of 1.2 mm and a coating weight of 90 g / m². 2 Since μ is taken as 35, τ = 305 is calculated; the thickness of the zinc-based coated plate material is 1.8 mm, and the coating mass is 65 g / m². 2 That is, μ is taken as 40, and τ is calculated to be 350; the heat treatment temperature and time from the first heating and holding zone to the fourth heating and holding zone are as follows:

[0060] Aluminum-silicon coated plate: Zone 1 (550℃~870℃, 106.75s), Zone 2 (870℃~900℃, 45.75s), Zone 3 (900℃~930℃, 61s), Zone 4 (930℃~950℃, 91.5s); holding time is 8s.

[0061] Zinc-based coated steel sheet: Zone 1 (300℃~450℃, 70s), Zone 2 (450℃~700℃, 70s), Zone 3 (700℃~880℃, 122.5s), Zone 4 (880℃~910℃, 87.5s); Hot bath temperature 88℃, pressure holding time 9s.

[0062] Example 3

[0063] The aluminum-silicon coated plate material has a thickness of 1.8 mm and a coating weight of 40 g / m². 2 That is, μ is taken as 20, and τ is calculated to be 350; the thickness of the zinc-based coated plate material is 1.8 mm, and the coating mass is 65 g / m. 2 That is, μ is taken as 40, and τ is calculated to be 350; the heat treatment temperature and time from the first heating and holding zone to the fourth heating and holding zone are as follows:

[0064] Aluminum-silicon coated plate: Zone 1 (550℃~870℃, 122.5s), Zone 2 (870℃~900℃, 52.5s), Zone 3 (900℃~930℃, 70s), Zone 4 (930℃~950℃, 105s); holding time is 10s.

[0065] Zinc-based coated steel sheet: Zone 1 (300℃~450℃, 70s), Zone 2 (450℃~700℃, 70s), Zone 3 (700℃~880℃, 122.5s), Zone 4 (880℃~910℃, 87.5s); Hot bath temperature 88℃, pressure holding time 9s.

[0066] Example 4

[0067] The aluminum-silicon coated plate material has a thickness of 1.8 mm and a coating weight of 65 g / m². 2 That is, μ is taken as 20, and τ is calculated to be 350; the thickness of the zinc-based coated plate material is 1.6 mm, and the coating mass is 85 g / m. 2 That is, μ is taken as 65, and τ is calculated to be 355; the heat treatment temperature and time from the first heating and holding zone to the fourth heating and holding zone are as follows:

[0068] Aluminum-silicon coated plate: Zone 1 (550℃~870℃, 122.5s), Zone 2 (870℃~900℃, 52.5s), Zone 3 (900℃~930℃, 70s), Zone 4 (930℃~950℃, 105s); holding time is 10s.

[0069] Zinc-based coated steel sheet: Zone 1 (300℃~450℃, 71s), Zone 2 (450℃~700℃, 71s), Zone 3 (700℃~880℃, 124.25s), Zone 4 (880℃~910℃, 88.75s); Hot bath temperature 90℃, pressure holding time 8s.

[0070] Comparative Example 1

[0071] The aluminum-silicon coated plate material has a thickness of 1.8 mm and a coating weight of 65 g / m². 2 The zinc-based coated steel sheet has a thickness of 1.6 mm and a coating weight of 85 g / m². 2 The heat treatment temperatures and times for the first heating and holding zone to the fourth heating and holding zone are as follows:

[0072] Aluminum-silicon coated plate: Zone 1 (750℃~810℃, 122.5s), Zone 2 (830℃~890℃, 52.5s), Zone 3 (900℃~930℃, 70s), Zone 4 (930℃, 105s); holding time is 10s.

[0073] Zinc-based coated steel sheet: Zone 1 (730℃~810℃, 71s), Zone 2 (830℃~880℃, 71s), Zone 3 (880℃~890℃, 124.25s), Zone 4 (890℃~910℃, 88.75s); Hot bath temperature 90℃, pressure holding time 8s.

[0074] Comparative Example 2

[0075] The aluminum-silicon coated plate material has a thickness of 1.8 mm and a coating weight of 65 g / m². 2 The zinc-based coated steel sheet has a thickness of 1.6 mm and a coating weight of 85 g / m². 2 The heat treatment temperatures and times for the first heating and holding zone to the fourth heating and holding zone are as follows:

[0076] Aluminum-silicon coated plates: Zone 1 (750℃~870℃, 100s), Zone 2 (870℃~900℃, 80s), Zone 3 (900℃~930℃, 70s), Zone 4 (930℃~950℃, 115s); holding time is 8s.

[0077] Zinc-based coated steel sheet: Zone 1 (300℃~450℃, 71s), Zone 2 (450℃~700℃, 71s), Zone 3 (700℃~880℃, 124.25s), Zone 4 (880℃~910℃, 88.75s); Hot bath temperature 50℃, pressure holding time 4s.

[0078] Comparative Example 3

[0079] The aluminum-silicon coated plate material has a thickness of 1.8 mm and a coating weight of 65 g / m². 2 The zinc-based coated steel sheet has a thickness of 1.8 mm and a coating weight of 85 g / m². 2 The heat treatment temperatures and times for the first heating and holding zone to the fourth heating and holding zone are as follows:

[0080] Aluminum-silicon coated plates: Zone 1 (750℃~870℃, 100s), Zone 2 (870℃~900℃, 80s), Zone 3 (900℃~930℃, 70s), Zone 4 (930℃~950℃, 115s); holding time is 8s.

[0081] Zinc-based coated steel sheet: Zone 1 (650℃~750℃, 80s), Zone 2 (750℃~850℃, 70s), Zone 3 (850℃~890℃, 80s), Zone 4 (890℃~900℃, 80s); Hot bath temperature 60℃, pressure holding time 5s.

[0082] Performance test data

[0083] The surface adhesion of the parts prepared in the above embodiments and comparative examples was observed and the performance of the parts was tested. The results are recorded in Tables 1-1 and 1-2.

[0084] Table 1-1 Surface Adhesion Roller Condition and Part Performance Table for Examples and Comparative Examples

[0085]

[0086] Table 1-2 Content of White and Golden Elements in the Zinc-plated Surface of Aluminum-Silicon Coated Plates Using Adhesive Rollers

[0087]

[0088]

[0089] As shown in Table 1-1, the surface adhesion condition observation and part performance test results of the embodiment are significantly better than those of the comparative example. The manufacturing method of the present invention, after heating and holding the aluminum-silicon coated plate and the zinc-based coated plate in a staggered step, and then hot stamping and hot bath stamping respectively, produces finished components with tensile strengths between 1350MPa and 1650MPa and elongation >5%. Furthermore, the surface of the aluminum-silicon coated plate component has no or only slight granular adhesion, golden-yellow iron-aluminum alloy, and white zinc oxide dot-like areas. The thickness of the aluminum-silicon coated plate is controlled at approximately 18μm. Figure 8-9 The aluminum-silicon coated plate components have a thicker coating. Furthermore, the thickness of the zinc-based coated plate after hot bath forming is controlled at approximately 25 μm, and the microcracks throughout the components are all controlled to within 5 μm. Figure 10-14 .

[0090] In the co-line production of aluminum-silicon plates and zinc-based coated plates of the present invention, a staggered stepped heating process with non-stick rollers and a matching hot bath process for zinc-based coated plates can be realized. Based on the thickness and coating quality of the two coating materials, a manufacturing method is proposed that can be obtained by specific corresponding formulas for process parameters such as temperature, heating time, holding time, and pressure holding time of each heating and holding zone, which can be applied industrially. This method can effectively solve the problems of zinc-based coated plates sticking to aluminum-silicon and aluminum-silicon sticking to zinc coating rollers, thereby realizing the co-line production of zinc-based coated plates and aluminum-silicon coated plates.

[0091] The technical solution provided by the present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for manufacturing a component for producing a non-stick coating roller on a co-line production line of aluminum-silicon plate and galvanized plate, characterized in that, The aluminum-silicon plate is specifically an aluminum-silicon coated plate, and the galvanized plate is specifically a zinc-based coated plate, comprising the following steps: S1: Cutting materials to obtain aluminum-silicon coated plates and zinc-based coated plates; S2: Perform cross-zone heat treatment on aluminum-silicon coated plates and zinc-based coated plates; S3: Parts are obtained by hot stamping aluminum-silicon coated plates or hot bath stamping zinc-based coated plates; Step S2 includes four heating and heat preservation zones, namely the first heating and heat preservation zone, the second heating and heat preservation zone, the third heating and heat preservation zone, and the fourth heating and heat preservation zone; The process parameters for the first heating and insulation zone are: heating and insulation temperature of the aluminum-silicon coated plate. Heating time The corresponding heating and insulation temperature of zinc-based coated plates Heating time ; The process parameters for the second heating and insulation zone are: heating and insulation temperature of the aluminum-silicon coated plate. Heating time The corresponding heating and insulation temperature of zinc-based coated plates Heating time ; The process parameters for the third heating and insulation zone are: heating and insulation temperature of the aluminum-silicon coated plate. Heating time The corresponding heating and insulation temperature of zinc-based coated plates Heating time ; The process parameters for the fourth heating and insulation zone are: heating and insulation temperature of the aluminum-silicon coated plate. Heating time The corresponding heating and insulation temperature of zinc-based coated plates Heating time ; τ represents the heating time, measured in seconds. The formula for calculating τ is as follows: Aluminum-silicon coated plate: ; Zinc-based coated steel sheet: ; In the above formula, t represents the material thickness in millimeters, and μ represents the coating quality influence factor, with the following values ​​for μ: Aluminum-silicon coated plates: coating weight per side ≤ 75g / m 2 At that time, µ=20; the single-sided mass of the coating is ≥85g / m 2 At that time, µ=35; the single-sided mass of the coating is between 75g / m 2 ~85g / m 2 When the interval is between, µ = 28 ± 2; Zinc-based coated steel sheet: Coating weight per side ≤ 75g / m 2 At that time, µ=40; the single-sided mass of the coating is ≥85g / m 2 At that time, µ=65; the single-sided mass of the coating is between 75g / m 2 ~85g / m 2 When the value is between 50 and 3, µ = 50 ± 3.

2. The manufacturing method for components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 1, characterized in that, In step S3, the aluminum-silicon coated plate is formed by hot stamping die.

3. The manufacturing method for components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 2, characterized in that, During the hot stamping operation of the aluminum-silicon coated plate, the holding time meets the following requirements. .

4. The manufacturing method for components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 2, characterized in that, During the hot stamping operation of the aluminum-silicon coated plate, the cooling water temperature is 6℃~10℃, and the cooling rate is... The demolding temperature of the parts is 150℃~250℃.

5. The manufacturing method for components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 1, characterized in that, In step S3, the zinc-based coated plate is formed by hot bath stamping using a hot bath mold.

6. The manufacturing method for a component of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 5, characterized in that, In the hot bath stamping operation of the zinc-based coated plate, the holding time meets the following requirements. The hot bath temperature meets .

7. The manufacturing method for components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 5, characterized in that, During the hot bath stamping operation of the zinc-based coated sheet, only the upper mold is circulated with cooling medium, the temperature of which is 6℃~10℃, and the part exiting the mold temperature is 80℃~200℃.

8. The manufacturing method for components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 1, characterized in that, The zinc-based coated plate is any one of GI plate, GA plate, or GL plate.

9. The manufacturing method for components of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 1, characterized in that, The thickness of the aluminum-silicon coated plate material and the zinc-based coated plate material is 1.0mm~2.0mm.

10. The manufacturing method for a component of a non-stick coating roller produced on a co-line production line of aluminum-silicon plate and galvanized plate according to claim 1, characterized in that, The aluminum-silicon coated plate does not undergo subsequent shot blasting, while the zinc-based coated plate is shot blasted.

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