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Luggage hardware -the effect of electrophoretic lattice hardness-B

2025-05-13

Luggage hardware integrated impact analysis Performance synergy The combination of hardness, electrophoresis and lacquering processes can significantly enhance the overall performance of the luggage hardware. The hardness provides basic strength, the electrophoresis provides corrosion resistance and adhesion guarantee, and the lattice frame further improves abrasion resistance and decorative properties. Luggage hardware application Scenarios Industrial hardware: We required high hardness, corrosion resistance and abrasion resistance and recommened that useing high hardness base material + electrophoretic coating . High-end decorative signage We recommened high gloss and corrosion resistance, electrophoresis priming + racking process Outdoor signage We require long-term weathering resistance and recommen electrophoretic coating + racking process , and select good weathering resistant paint . Cost and process trade-off The cost of lattice process is high, if the budget is limited, only electrophoresis process can be used; if the requirements for decorative and abrasion resistance are very high, then the combination of lattice process is needed. Luggage hardware recommended solutions Base programme High hardness metal substrate (e.g. stainless steel) + electrophoretic coating, suitable for most industrial and outdoor scenarios, cost-effective. High-end solution High hardness metal substrate + electrophoretic coating + racking process, suitable for high-end decorative signs, combining performance and aesthetics. Special requirements programme According to the specific environment ( high salt fog, high temperature), we can choose special coatings or processes, such as salt fog-resistant electrophoretic coating or high-temperature lattice process. Conclusions and Recommendations Luggage hardware hardness selection needs to be “customized” High-end products: 4H hardness is preferred, taking into account the aesthetics and durability; Mid-range products: 3H hardness is the most cost-effective; Low-end products: 2H hardness can satisfy the basic needs. Direction of process optimization Enhance the performance through composite process (e.g. anodic oxidation + electrophoresis); Develop low-temperature curing high-hardness electrophoresis paint to reduce energy consumption and risk of deformation…

Luggage hardware-the effect of electrophoretic lattice hardness-A

2025-05-13

For luggage hardware, the hardness, electrophoresis and latticework processes have the following effects on its performance: Luggage hardware effect of hardness on performance Abrasion resistance Higher hardness significantly will improve the abrasion resistance of the luggage hardware and reduces surface damage caused by friction or scratches, making it used for high-frequency use or exposure to harsh environments (industrial equipment, outdoor signs) Deformation resistance Increased hardness will improve the deformation resistance of the logo, making sure that it keeps the shape and stability of logo when subjected to force or long-term use, avoiding dents or distortions caused by external forces. Risk of brittleness If the hardness is too high, the material maybe become brittle and be prone to cracking or fracture when subjected to impact, therefore it is necessary to balance the hardness and toughness according to the actual application situation. Luggage hardware effect of electrophoresis process on performance Corrosion resistance Electrophoretic coating can form a uniform and dense protective film, effectively isolate moisture, oxygen and corrosive media, will improve the corrosion resistance of the sign and prolong its service life. Adhesion The electrophoretic coating has a strong bond with the metal substrate and it is not peel off easily, it suitable for signs that are exposed to humidity, high temperature or chemical environments for a long time. Luggage hardware appearance quality The electrophoresis process can get a high gloss, uniform coating effect, enhancing the aesthetics of the sign, and masking minor imperfections on the metal surface. Luggage hardware environmental friendliness Modern electrophoresis processes mostly use water-based coatings with low VOC emissions, which meets environmental requirements and is suitable for environmentally friendly application scenarios. Impact of the lattice frame (chrome plating) process on performance Decorative The chrome plating process can give the logo a mirror-like luster and significantly enhance its appearance,…

Bag hardware of the abrasion resistance-B

2025-05-12

Bag hardware correlation between operating environment and wear resistance High friction scenarios (e.g. industrial machinery) Recommended 316 stainless steel + PVD coating, Taber wear test (CS-10 wheel, 500g load) up to 5000 rpm without bottoming out. Low frequency contact scenarios (e.g. consumer goods) Aluminium anodising + hard oxidation (thickness ≥25μm) can meet the requirements, reducing costs by more than 30%. Extreme environments (e.g. offshore platforms) Need to use super duplex stainless steel (such as S32760) + electrochemical polishing, Pitting Resistance Equivalent (PREN) ≥ 40, corrosion rate <0.01mm/year. Wear resistance test standard reference Bag hardware ASTM D4060 (Taber Wear Test) Used to assess the wear resistance of organic coatings, metal hardware can refer to its test principle, by adjusting the load and number of revolutions to simulate the actual wear. ISO 15184 (Pencil Hardness Test) Used to assess the hardness of coatings, the surface hardness of bag hardware with good abrasion resistance should be ≥ 6H. Bag hardware recommended programme High wear resistance requirement 316 stainless steel substrate + PVD TiN coating (thickness ≥ 3μm), Taber wear test ≥ 8000 rpm. Cost-effective solution 6061 aluminium alloy + hard anodised (thickness ≥25μm), cost reduction of 40%, wear resistance to meet daily use. Decorative demand H62 brass + chemical nickel plating (thickness ≥ 5μm), both wear-resistant and beautiful, suitable for indoor low-frequency contact scenarios. Through the reasonable choice of material, technology and structural design, the wear resistance of bag hardware can be significantly improved and the service life can be extended. Bag hardware summary High-end bags: give priority to pure steel or high-strength aluminum alloy hardware, combined with anodic oxidation or multi-layer plating process to ensure wear resistance and service life. Mid-range bags: zinc alloy is the cost-effective choice, but need to improve wear resistance through surface treatment. Daily use: avoid prolonged exposure…

Bag hardware of the abrasion resistance -A

2025-05-12

The abrasion resistance of bag hardware mainly depends on the material selection, surface treatment process, design structure and use environment, the following are specific analyses and recommended directions: Influence of material on wear resistance Stainless steel (recommended) 304 or 316 stainless steel is suitable for high-frequency use scenarios (industrial equipment, outdoor signs) due to its high hardness and corrosion resistance. For example, 316 stainless steel contains molybdenum, it improves salt spray corrosion resistance by more than 30% compared to 304, making it suitable for humid environments. Aluminium alloy (lightweight option) The hardness of 6061-T6 aluminium alloy is about HV95, and the abrasion resistance is increased by 2-3 times after anodic oxidation on the surface, which is suitable for weight-sensitive scenarios (portable equipment). However, strong acid and alkali environments need to be avoided. Copper alloy (decorative priority) Brass (H62) hardness HV80-100, wear resistance is weak, but can use to nickel-plated (thickness ≥ 5μm) to enhance wear resistance, suitable for low-frequency contact decorative parts. Surface treatment process to enhance wear resistance Physical vapour deposition (PVD) coating TiN (Titanium Nitride) coating hardness high to HV2000, wear resistance is 3 times of chromium plating, suitable for high-end equipment marking. Laser hardening Laser fusion coagulation of stainless steel surfaces can form a hardened layer with a thickness of 0.1-0.3mm, increasing the hardness to over HV600 and significantly improving scratch resistance. Chemical conversion film Stainless steel passivation treatment (trivalent chromium passivation) can improve corrosion resistance and indirectly reduce the wear rate, suitable for long-term exposure to the environment. Design structures to optimise wear resistance Rounded corner transitions We round Logo edges with R≥0.5mm to avoid wear cracks caused by stress concentration. For example, rounded corners on automotive wheel logos can increase wear life by up to 40%. Layered structure The three-layer structure of substrate + wear-resistant…

Luggage hardware hardness of electrophoretic lattice frame -B

2025-05-10

Fourth.hardness test methods and standards Luggage hardware commonly used test methods Pencil hardness test According to GB/T 6739 standard of luggage hardware, use a pencil of known hardness to scratch at an angle of 45°, and take the highest hardness value without scratch as the result. Vickers hardness (HV) for thin coatings (<50μm), the hardness value is calculated by the diagonal length of the indentation. Knoop hardness (HK) more accurate hardness measurement of small areas, suitable for localised hardening treatments. Luggage hardware standard references Automotive industry standards ( GMW 14872) require electrophoretic coatings to have a pencil hardness of ≥3H and a scratch resistance (under 500g load) of ≤3mm scratch width. Industrial equipment standards may be more stringent, HV ≥ 200. Fifth.hardness performance in practical applications Scratch resistance Hardness and scratch resistance are not linearly related. For example, a coating with HV300 may be scratch-free under a force of 5N, but a coating with HV250 may perform better with the addition of a lubricant (such as silicone oil). Environmental Adaptability High temperature and high humidity environments (such as 85°C/85%RH) may cause the coating to soften and the hardness to drop by 20-30%. Long-term hardness stability needs to be verified by ageing tests. Sixth.recommendations and directions for optimisation Process optimisation Adjust the pH (5.5-6.5) and conductivity (1000-1500μS/cm) of the electrophoresis solution to improve the densification of the coating. Adopt UV curing technology for the lattice layer, which can shorten the curing time to within 10 seconds and increase the hardness by 15%-20%. Luggage hardware material Selection For scenes requiring high hardness (outdoor signage), a combination of stainless steel substrate + epoxy electrophoresis + two-component polyurethane lattice frame is recommended. For lightweight requirements, aluminium alloy substrate can replace part of the electrophoresis layer function by anodic oxidation pretreatment (hardness HV300-400). Quality Control…

Hardness of electrophoretic lattice frame of metal logo-A

2025-05-10

The hardness of the ‘Engraved Round Metal Logo’ is a complex issue that involves a number of factors (such as the electrophoretic coating process, the way the frame is handled, the metal substrate, and so on), and it is not possible to give a fixed value directly. The following are the key influencing factors and analyses: First.influence of electrophoretic coating on hardness Metal logo coating type and thickness The hardness of an electrophoretic coating is directly influenced by the formulation and thickness. For example, epoxy resin-based electrophoretic coatings are usually hard , while acrylic resin-based coatings may be soft . The thicker the coating, the surface hardness may vary depending on the degree of curing, but too thick a coating is prone to internal stresses, which in turn reduces the actual scratch resistance. Curing process Curing temperature and time play a important role in hardness. For example, the curing of an epoxy coating at 180°C for 30 minutes is more harder than one cured at 160°C for 20 minutes. If curing is inadequate, the coating may be sticky or scratched easily . Second.enhancement of hardness by lattice treatment of metal logo Role of the lacquer layer A lacquer (such as acrylic varnish) acts as a transparent protective layer and enhances the surface hardness by 1-2 pencil hardness levels. For example, when the electrophoretic coating itself is 3H, it may reach 4H-5H after lattice treatment. Synergy between lattice frame and electrophoresis layer If the chemical compatibility between lattice frame and electrophoretic coating is poor, it may lead to insufficient adhesion between layers, limited hardness enhancement or even cracking. Compatibility needs to be verified by adhesion test (scratching method). Third.influence of metal substrate Metal logo substrate material Stainless steel substrates (304, 316) have a significantly higher hardness than aluminium alloys After electrophoretic…

Spray Frame Thickness Requirements of Luggage Hardware

2025-05-09

There is no set standard for the thickness of the spray lacquer frame (electrophoretic coating) required for the Luggage hardware, but the following factors can be used as a First.Luggage hardware industry norm thickness range The thickness of the electrophoretic coating usually ranges from a few microns to several tens of microns, depending on the product requirements and the environment For applications requiring higher corrosion and wear resistance, the coating thickness may be on the thicker side, e.g. some industries may require 60 to 70 microns or even more. Second.Luggage hardware product-specific requirements If we use the metal logos for high-end decoration or in special environments , thicker coatings will require to provide better protection and decoration. Some application scenarios may specify coating thicknesses, such as the national specification GB/T 18593-2010, which specifies a spray thickness of 0.17 to 0.3 mm Third.process parameter control We can control the coating thickness by adjusting electrophoresis process parameters (such as. voltage, time, coating concentration and so on.). In practice, the process parameters need to adjuster by the material properties, surface condition and target performance. Fourth.Luggage hardware quality and performance balance Too thick a coating may affect logo fineness, while too thin a coating may not meet protection requirements. We recommend determining the optimum thickness range experimentally, considering appearance, durability, and processability.

Thickness of electrophoretic lattice frame with metal logo

2025-05-09

There is no set standard value for the thickness of the electrophoretic lath (usually referred to as the electrophoretic coating or electrophoretic paint layer) for Metal Logo as it depends on a number of factors including but not limited to the product requirements, the environment in which it is to be used, the parameters of the electrophoretic process, and the characteristics of the material. However, a discussion of possible thickness ranges can be made based on industry practices and the general characteristics of electrophoretic coatings. First.general range of electrophoretic coating thickness We can control the thickness of an electrophoretic coating by adjusting the electrophoretic process parameters. In industrial applications, the thickness of electrophoretic coatings can vary from a few microns to tens of microns. As for applications of requiring higher corrosion and abrasion resistance, the thickness of coating may be on the thicker side. Second.factors affecting the thickness of electrophoretic coatings Metal logo product requirements Different products require different the thickness of coating thicknesses..can provide better protection and decoration. Metal logo usage environment If we use the metal logo in outdoors or in harsh environments, need to require a thicker coating to resist corrosion and abrasion. Electrophoresis Process Parameters Parameters (such as voltage, time, and paint concentration) affect the thickness of the coating. By adjusting these parameters, can control the the thickness of the coating precisely. Material properties The material and surface condition of the substrate also affect the adhesion and thickness of the coating. For example, a substrate with a rough surface may require a thicker coating for complete coverage. . Third.metal logo recommendations and opinions For Metal Logos As they are usually used for decorative and signage purposes, therefore the thickness of coating should be sufficient to provide a good appearance and some protection, but not so thick…

Detection of embryos of engraved round metal logo-A

2025-05-06

For the inspection of “Engraved Round Metal Logo Embryo”, it is necessary to systematically evaluate the key dimensions such as dimensional accuracy, engraving quality, surface integrity, material properties and functionality, etc. The following are the specific inspection points and analysis: Metal logo dimensional and shape accuracy inspection Inspection content Whether key dimensions such as outer diameter, inner diameter (if any), thickness, etc. meet the design tolerance. Whether the roundness, flatness and other shape and positional tolerances meet the standards. Metal logo inspection method High-precision dimensional inspection using coordinate measuring machine (CMM) or optical image measuring machine. Verify roundness and surface profile by roundness meter or laser scanner. Importance Dimensional deviation may lead to subsequent assembly difficulties or affect the visual effect of the sign, which needs to be strictly controlled. Metal logo engraving quality inspection Inspection content The clarity, depth consistency and edge sharpness of the engraving pattern. Integrity of the text or pattern (no broken strokes, missing corners). The smoothness of the transition between the engraved area and the unengraved area. Inspection Method Visual inspection (in conjunction with a magnifying glass or microscope) to assess detail. Measure depth of engraving and surface roughness using a laser confocal microscope or white light interferometer. Importance The quality of engraving will affects the legibility and aesthetics of the logo, and needs to be confirmed to meet the design requirements. Surface Integrity Inspection Detection content Whether there are scratches, pits, oxidized layer and other defects on the surface. The bonding strength between the engraved area and the substrate (no skinning, peeling). Detection method Scanning for surface defects visually or with the help of automatic optical inspection (AOI) equipment. Verify the bonding strength of the engraved layer to the substrate by adhesion test (e.g. tape tear test). Importance Surface defects can degrade the product,…

Luggage hardware -the effect of electrophoretic lattice hardness-B

Luggage hardware-the effect of electrophoretic lattice hardness-A

Bag hardware of the abrasion resistance-B

Bag hardware of the abrasion resistance -A

Luggage hardware hardness of electrophoretic lattice frame -B

Hardness of electrophoretic lattice frame of metal logo-A

Spray Frame Thickness Requirements of Luggage Hardware

Thickness of electrophoretic lattice frame with metal logo

Detection of embryos of engraved round metal logo-A

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