Introduction
Pre-painted steel coil for home appliance is with good processability and decorative properties. Pre coated steel sheet is widely used as front panels, side panels, back panels and inner panels of household appliances. You can find it in refrigerators, microwave ovens, washing machines, air conditioners, water heaters, display cabinets, vending machines, DVDs, computers, etc. Generally, pre painted steel sheet uses hot-dip galvanized, galvalume (alu-zinc)and cold rolled steel as the substrate. In our factory, we have pre-painted steel and PVC/PET coated steel sheets to choose from. Welcome to contact us for more detail information.
For more prepainted steel coil for refrigerators front panelsinformation, please contact us. We will provide professional answers.
Specifications of color coated steel for home appliance
item
Home appliance panels
substrate
Cold rolled steel,galvanized steel,galvalume steel
thickness
0.3mm-1.2mm
width
600-mm
Popular colors
white, black, grey, silver, silver grey, beige, etc.
Coating method
Double-coating and double-baking process
Coating thickness
Top paint: 15-25 μm Back paint: 5 μm as per request
Lamination
30-50 μm
T-bend test
&#;2T
Color difference
&#;E&#;0.5
E-cupping test
6mm
Mek test
More than 100 times
Impact test
No cracking and peeling(50kg/cm)
Painting company
PPG/ Valspar /becker/ kcc /nippon
Pre Coated Steel Sheet Features
&#;Great processing performance;
&#;Excellent chemical resistance;
&#;High scratch resistance;
&#;Delicate decorative performance, etc.
Pre Coated Steel Sheet Uses
1. Pre Painted Galvanized Steel Coil is widely used in refrigerators, microwave ovens, bread makers, washing machines, air conditioners, DVDs, water heaters, televisions, and other household appliances;
2. Also, coated sheet metal is popular in freezers, display cabinets, vending machines, and other commercial appliances.
Types of Home Appliance Panels
1.Pre-painted Metal for Home Appliance
Due to its rich colors and high production efficiency, pre-painted steel is widely used for exterior walls, roofing, interior decoration, windows, doors, etc. Currently, it is also popular in transportation and home appliances.
However, prepainted coils for home appliances uses special top paintings, which makes the surface glossy. The front panel uses polymer linear oil-free polyester resin coating and the back panel uses modified epoxy painting.
Also, you can find conductive and matte PPGI sheets on the market. Relatively speaking, the color coated sheet is not as smooth as the PVC/PET coated steel sheet. So pre painted galvanized coils are mainly used as side panels but is not very suitable for the front panel of high-end household appliances.
2.PVC/PET Coated Steel for Home Appliance
PVC/PET coated color steel has a beautiful appearance, excellent processability, and superior resistance to corrosion and scratch. Besides, painted steel sheet can show different effects from low light to high light, pearlescent effects, and exquisite patterns. Therefore, colored galvanized sheet metal is widely used in refrigerators, washing machines, and other household appliances.
If you want to learn more, please visit our website prepainted steel coil for freezers.
Related articles:What is the best stainless steel for hose clamps?
Choosing Color-coated Steel for Home Appliance
As mentioned, the base material can be cold-rolled steel sheets, hot-dip galvanized sheets, galvalume sheets etc. Among them, cold-rolled sheets are mainly used for exterior sheets of refrigerators and washing machines. In contrast, hot rolled steel plate is mainly used for shells of air conditioner compressors. Hot-dip galvanized sheets are mainly used in air conditioner outdoor units and back panels of refrigerators. In comparison, fingerprint-resistant sheets are preferred by high-end household appliances such as computers, VCDs, microwave ovens, washing machines, air conditioners, etc. Generally, the pre painted metal sheet used in refrigerators is 0.7mm and 0.8mm in thickness. At the same time, that for microwave ovens is 0.5mm and 0.8mm.
&#;According to Regions
Moreover, different regions have different choices for color-coated steel for home appliances. In Japan and South Korea, the side panels of refrigerators often use high-gloss single-color panels. While in North America and Europe, low-gloss panel, like the embossed panel is more popular because they can not only enhance the strength of the pre painted sheet metal during the embossing process but also cover the surface defects of the base metal.
&#;According to Applications
Due to the indoor use of home appliances, there is no high requirement for weather resistance and aging performance. However, it requires higher boiling water resistance and acid and alkali resistance. In addition to its significant decorative effect, painted steel sheets also need to meet some specific use requirements, such as non-toxicity, high processability of microwave oven shells, the resistance to detergents of washing machine shells, the scratch resistance of refrigerator side panels, etc. At the same time, in order to prevent scratches during stamping, the protective film needs to be retained until the end user removes it. If the protective film is released before leaving the factory, pre painted coil steel requires 60 units of adhesive force. While if the protective film is removed by end users, it requires 180 units of adhesive force.
Difference Between Color-coated Steel for Home Appliance and Construction
Actually, there is no essential difference between the color-coated steel for home appliances and construction. But home appliance panels have higher requirements for substrates and coatings. Below let's review their differences in coatings, base metal, and applications.
1. Paintings
In construction uses, the primer is epoxy resin paint or and the topcoat is polyester paint or other coatings with the same performance. While for home appliance uses, the primer is polyester paint and the topcoat is polyester paint or other paint with the same performance.
2. Applications
The color coated steel for home appliances is mainly suitable for white goods, such as freezer, washing machines, air conditioners, water heaters, microwave ovens, TV back panels, electrical boxes, stereos, etc. In construction, colored steel sheets are mainly used for roofing sheets, partition walls, curtain walls, ceilings, security doors, windows, fencing panels, etc.
3.Base Metal
Generally speaking, painted coil steel for construction requires higher strength and better corrosion resistance. This is because it is usually a part of the stress-bearing structure and is used in a complex outdoor environment. While color-coated steel for home appliances uses normal-strength steel sheets. As for base metal, hot-dip galvanized steel and galvalume sheets are commonly used for construction, while electro-galvanized sheets and cold rolled steel are generally used for home appliances.
Home Appliance PPGI Steel Sheet Processing Requirements
When processing home appliance PPGI steel sheet into desired home appliance housing shape, please pay attention to the following requirements.
1. Environmental requirement
Before processing home appliance galvanized steel sheet, please make sure the surface of die and processing equipment is clean.
2. Mould exactness
High exactness die should be used. The die, which directly contacts with the PPGI steel sheet's coating material,
is recommended to bechrome plated and finely polished.
3. Accuracy
The die should come with correct amount of clearance between the punch and die, so as to ensure accurate end product size and shape. The clearance can be adjusted according to the total thickness of substrate, paint coating, and 70% thickness of protection membrane.
4. Lubrication and heating up processing
Lubricating the die and protection membrane of the home appliance PPGI steel sheet, and heating up the steel sheet, can greatly improve the product surface quality and entire processing effect.
Jinbowantong Steel has an annual production capacity of 80,000 tons of color coated steel for home appliances. As one of the professional prepainted steel coils manufacturers, we employ a complete imported coating line and adopt double-coating and double-baking process. And there are also thermal lamination lines and sharing, slitting equipment, etc. at our factory. So you can find different surfaces and finishes, such as perforated steel sheets, checkered sheets, etc. Our pre painted coils are widely used in refrigerators, freezers, washing machines, air conditioners, microwave ovens, water heaters, televisions, etc. In addition to common colours, pearlescent and metallic products are also available. We offer color coated steel with different base materials, finishes, and specifications. Welcome to contact us for more details!
You may also want to know:
10 Reasons to Choose Galvanized Steel for Your Project
Galvanized Metal: Understanding the Process, Benefits, and Applications
How Long Does Galvanized Steel Last?
Design with Pre-paint in Mind Even if manufacturers don&#;t plan to begin production using pre-painted metal, they can evolve to pre-paint production by planning for it during the design phase. Below are recommended steps for a team approach to the design process:
Broaden The Design Team: Invite engineers, chemists, marketing, sourcing and supply management, coaters and manufacturing to join discussions during the design process. Emphasize innovation and problem solving to create a seamless transition from design through manufacturing to the end user.
Establish Coating Objectives: Pre-paint can reduce or eliminate an &#;orange peel&#; finish because it offers excellent flow properties. Setting coatings objectives on the front end of the project will help guide the design process.
Explore Ways to Differentiate: A unique appearance for products can be achieved through innovations in color and texture. A manufacturer&#;s coating partner can help weigh the pros and cons of various options. Rather than handing the coater a chip to color match once the design process is complete, ask them to share trends in the marketplace, in colors and finishes and from other industries. They can help balance design, performance, functionality and cost when recommending coatings options.
Establish Vision During Initial Design Phase: Review drawings early with attention toward finish options such as color, texture and gloss. Typically the initial design phase is comprised of several planning meetings with the end vision becoming clearer as meetings progress.
Prepare Lab Display Panels: The team can explore coating options by having the coatings partner prepare lab display panels with various coatings to review.
Plan for Form and Function: The team will want to ensure the coating meets the requirements of both form and function to avoid issues in the launch phase. This will involve weighing the pros and cons of various coating types to meet aesthetics, flexibility, durability and other performance objectives.
Apply Lean Six Sigma to Production Process: The team should assess the entire coating production process to achieve efficiency, from sourcing raw materials to Lean manufacturing. Production lines may need only minor tweaking to accommodate pre-paint or more major production changes that the coatings partner can help implement.
Manufacturers in many industries continue to discover the benefits that can be achieved from pre-painted metal to differentiate their products while improving speed to market. Pre-paint opportunities abound in multiple industries. Through a strong and early design partnership with the coating manufacturer, applicator and substrate supplier, many benefits can be realized. Through the team-design approach, all involved members of the immediate supply chain have a voice and can actively contribute to the success probability offered by a pre-paint process model.
Pre-Paint Design Guidelines
When designing for metal coatings, consider the following:
Substrate Type: The general performance characteristics of the selected substrate will help guide coating selection, including surface topography, yield, tensile and elongation (YTE).
Pretreatment Designation: Determine whether the application requires Restriction of Hazardous Substances (RoHS) compliance.
Durability versus Formability: Understand the specifics around minimum durability requirements such as scratch-resistance and hardness with the knowledge that these characteristics will likely require a compromise with general pre-paint flexibility. Design for pre-paint with as generous-as-possible bend radii to allow for maximum factory formability.
Finish requirements: Appliance &#;industry standard&#; pre-paint finish applications are generally comprised of a &#;primer&#; application and a &#;finish coat&#; application.
Fold Design: Avoid exposed edges on final part design, allowing for an engineered fold to &#;hide&#; cut edges.
Multiple Design Finishes: A large range of finish colors and effects are available in pre-paint coatings, as well as multiple gloss levels.
Mechanical Post-Embossing: For finished part applications that require a mechanical post-emboss, recognize and design for additional finished thickness. Mechanical embossing also can lend structural rigidity to an end-use part.
For more information, please visit colored prepainted steel coils.
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