for Foundry Adsorption Especially for Tiny Impurity ...
for Foundry Adsorption Especially for Tiny Impurity ...
Ceramic foam filter
Are you interested in learning more about Ceramic Foam Machining? Contact us today to secure an expert consultation!
Product Description
Ceramic foam filters are a new type molten metal filter for filtering impurities from liquid metals to decrease casting flaw. They have the characters of light weight, high mechanical strength, large specific surface areas, high porosity, excellent thermal shock resistance, chemical corrosion resistance and high temperature stability in molten metal.
Non-metallic inclusions in a casting are one of the most main reasons of casting defects. Ceramic foam filters have three-dimension net structure, they are able to increase the surface areas, and absorb the sinter, the liquid metal becomes more pure, waster quality problems such as sand pore and air pore are much less, and the cast quality becomes much better.
Ceramic foam filters are not only widely applied in the plant of metal casting such as the casting of steel, iron, copper and aluminum, but also be applied in gas treatment in high temperature, carrier of catalyzer, solid heat exchange and advanced filling for chemical industry.
We have developed a series of ceramic foam filters which are made of different materials such as alumina, silicon carbide, zirconia and magnesia. All of the materials are available in square, round and custom geometric shapes; Sizes ranging from 10mm up to 600mm; And thicknesses from 10-50mm. Pore densities from 10-60 PPI (pores per inch) are available.
Ceramic Foam Filter Features
1. Decontaminate the melting metal liquid.
2. Simplified gating system.
3. Improve the metallurgical structure of the castings.
4. Reduce impurities of the castings.
5. Improve casting quality rate.
6. Reduce casting internal re-oxidation defects.
7. Reduce the surface defects after machining of the castings.
We are the professional supplier of foundry filters in the china, ceramic foam filters are the most effective filtering system available, has a unique three-dimension channel structure. Our filtration systems can help customers remove inclusions, reduce turbulence and provide rapid and consistent flow to improving casting quality and reducing defective rate and casting cost. They are widely used for aluminium, copper, iron and steel casting applications.
Our ceramic foam filters have the characters of light weight, high mechanical strength, large specific surface areas, high porosity, excellent thermal shock resistance, chemical corrosion resistance and high temperature stability in molten metal. It not only can filter residuum, but also can adsorption especially for tiny impurity of 1-10μm.
Our ceramic foam filter is not only applied for molten metal filtering in high temperature, But also be applied purification of high temperature gas dust, sound insulation, biological enzyme carrier in medical preparation, catalyst carrier substrate, solid heat exchange and advanced filling for chemical industry.
We can offer various materials of ceramic foam filter, such as silicon carbide foam ceramic filter, zirconia foam ceramic filter, magnesia foam ceramic filter, alumina foam ceramic filter, we can produce square, rectangular and round filters of dimensions required by the client and porosity 10 PPI and
4
0 PPI (pore per inch).
C eramic foam filter size:
The size
are available in square, round and custom geometric shapes; sizes ranging from 10mm up to
5
00mm, and thicknesses from 10-50mm. The most common porosities are 10
ppi
,
15
ppi,
20
ppi, 30ppi,40ppi,50ppi. H
igher porosities are available upon request. Custom-made cut-to-size filters are also possible.
Common size in Round shape:
40x11mm, 40x15mm, 50x15mm, 50x2
2
mm, 60x22mm,
70x22mm, 80x22mm , 90x22mm,100x22mm,
120
x25mm
,150
x2
2
mm
,200x25
common sizes in Square shape:
37
x
37
x
12.5mm,
40x40x1
1
mm
,
40x40x1
3
mm, 40x40x15mm, 50x50x
13
mm, 50x50x
15
mm, 50x50x22mm, 75x75x22mm,
50x75x22mm
,
100x75x22mm, 100x100x22mm, 55x55x15mm, 150x150x22mm
,200x200x25
Physical properties and Applications
Physical Properties For Ceramic Foam Filter
Material
SIC
AL
ZR
Color
Grey Black
White
Yellow
Pore Density
10-40 PPI
10-
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EnduraPost Rural Star Pickets
6
0 PPI
10-40 PPI
Porosity
80%-90%
80%-90%
80%-90%
Operating temperature (
ºC
)
≤ 1500
Additional reading:What is black annealed wire used for?
If you want to learn more, please visit our website High Silica Fiberglass Mesh Filters for Molten Aluminum Filtration.
≤ 1100
≤ 1700
Bending Strength (MPa)
≥0.8
≥0.6
≥1.0
Thermal Shock Resistance(times/1100
ºC)
6
6
6
Applications
Ductile cast iron ,Grey iron and other cast iron and nonferrous alloy
Aluminum , Aluminum alloys and other non-ferrous alloy.
Stainless steel ,Carbon steel and large cast iron .
Detailed Images
Shipping
Lead time: 10-15days after signed the contract
Packing
Inside packing: Filters are put in small box and Layered packaging. There is cardboard between each layer.
Outside packing: Cartons&Pallets. Three layer corrugated cartons and export special pallets .
The mark on cartons can be designed according to the customer's request.
FAQ
Q: Are you Factory?
A: Definitely, we are factory. Welcome to visit us!
Q: What Parameters should I provide to you for proper quotation?
A: Application,
pore size
, dimension, color, quantity, packing requirements, trade terms.
Q:How can you control your quality?
A:For each production processing, we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and we have the quality certificates with ISO9001
.
Q: What is your lead time?
It usually needs about 15- 20 days after receiving the PO.
Q: Do you provide Samples?
A: Yes, our factory provide samples for testing, pls send detail parameters to us. (if customized, with drawing is best) The samples will be charged or free according to the specific requirements.
Q: What's the Payment Terms?
A: We accept T/T, L/C, West Union, etc.
Q: How can I get samples?
A: We are honor to offer you the samples.
Q: What about your Packing?
A: We provide carton box, pallet, etc. OEM packing available too.
Q: Do you have R&D services?
A: Yes, we have R&D department to assist you in new
product development.
Q:Does your company accept customization?
A:We accept OEM service.
Q:Can we visit your company?
A:Yes, for sure, you are welcome to visit our company.
Contact us
Cangzhou Sefu Ceramic New Materials Co.,Ltd.
Laser Cutting & Engraving Foam
Brief introduction to foam
Foam is formed by air pockets in a material. Foam is usually made of polymer, and foam can be divided into hard foam, soft foam and semi-hard (or semi-soft) foam according to its composition. Rigid foamed plastics can be used as thermal insulation materials and sound insulation materials, thermal insulation materials for pipes and containers, floating materials and shock-absorbing packaging materials; Soft foamed plastics are mainly used as cushion materials, such as foam artificial leather.
Foam plastic is also known as porous plastic, which is made of resin as the main raw material and has countless micropores inside. It is widely used as heat insulation, sound insulation, packaging materials and car hull. Commonly used foams include polyurethane, polystyrene, polyvinyl chloride, polyethylene, phenolic foam, etc.
Why cutting foam with a laser?
Laser is a highly flexible tool: everything is possible from prototype design and construction to mass production. You can start with the design program directly, which is especially important for rapid prototyping. Compared with the complex water jet cutting process, the laser equipment is significantly faster, more flexible and more effective. Foam can be cut by laser to form clean fused and sealed edges. Cutting foam with laser is a common procedure nowadays, because some people think that cutting foam is faster and more accurate than other methods. Compared with the mechanical process, laser cutting can provide consistent cutting, without generating dents or damaging parts on the machines on the production line, and without any cleaning afterwards.
In the traditional industry, the cutter exerts great pressure on foam, resulting in material deformation and dirty cutting edges. When water jet cutting is used, water is sucked into the water absorbing foam and then separated from the cutting water. First, the material must be dried before it can be used in any subsequent processing, which is a time-consuming operation. With laser cutting, this step will be skipped and you can return to the material processing immediately. In contrast, laser is more eye-catching and undoubtedly the most effective technology for foam processing. Undoubtedly, when cutting industrial foam, the advantages of using laser over traditional cutting equipment are obvious. Laser cutting foam has many advantages, such as single step processing, maximum material use, high-quality processing, cleaning and accurate cutting.
Laser achieves the minimum profile by using accurate and non-contact laser cutting, which makes the industrial use of foam significantly increase. Today's foam industry provides a variety of material options for various uses, while laser cutting technology provides a fast, professional and cost-effective alternative to other traditional processing methods. Using laser cutting machine as a tool for cutting foam has become more and more common in the industry.
There are generally three kinds of foam that can be safely cut, namely polyethylene (PE) foam, polyurethane (PUR) foam and polyester (PES) foam. Expanded polystyrene (EPS) foam can also be cut by laser, but due to its flammability and the fact that it will not extinguish automatically, special care needs to be taken. Other types of foam usually release highly toxic gases.
How to cut foam?
Due to the compounding and flammability of foam, it is recommended to use point mode, low power and low speed in the engraving process to reduce the heat entering the work. The actual value will depend on the type of foam used, the thickness and density of foam and the laser power used. If your foam density is higher, you will need more power or slower speed. If your foam is thinner, you will need less power or higher speed. Having the nozzle closer to the work piece, makes the air assist more effective, however in most set-ups this means the laser beam will be focussed below the surface, giving a larger kerf or cutting width at the top surface. In fact, you don't need a lot of laser power to carve foam. My typical laser engraving settings on a 50W laser are 20% power (about 18 watts), 400mm/s and 0.2mm scan intervals. Of course, this will vary depending on your machine setup. Don't inject too much energy / heat into the foam at first, otherwise it will start to melt. If you want to carve deeper, you'd better reduce the speed or repeat the cutting several times.
All engraving materials have unique characteristics, including foam. These characteristics determine how the laser beams interact and change the materials. The most common processes of foam materials are as follows:
Laser cutting foam
Using CO2 laser can cut polymer based foam most effectively. The laser beam heats the material directly, causing it to evaporate. If the laser power is high enough, the laser beam will completely penetrate the material. When laser beam is used to cut polymer, the polymer will evaporate rapidly, thus making the edge smooth and the heat affected zone minimum. For metal based foam, fiber laser is the most effective. The fiber laser can cut thin sheets of foam (up to 1 / 8 inch or 3 mm). Ceramic based foam is usually not cut by laser because it is very brittle and may crack.
Laser engraving of foam
In the process of foam surface engraving, the power of laser beam can be limited to engrave the material to the specified depth. CO2 laser is most suitable for laser engraving polymer foam, while fiber laser is most suitable for metal foam. The laser engraving process can be used to create patterns and designs on the surface of foam.
Laser marking of foam
Metal and ceramic foam can be laser marked using a fiber laser. The energy of the optical fiber laser beam is absorbed by the material surface to heat it and change the color or hue. This change in appearance creates a visible marker without deleting the material. Laser markers can be used to create designs or convey information.
Like common wood or leather engraving, the laser engraving machine can realize cutting and surface engraving, or the combination of the two processes at the same time. The above laser cutting, engraving and marking processes can be combined together without moving or re fixing the foam.
General Foam Laser Considerations
Foam carving is usually done in large size. Therefore, if you mainly carve foam materials, the size of your carving platform must be large enough to accommodate the largest foam plate to be laser processed. Secondly, foam is easier to burn than wood or other materials. If you are not sure whether the material you carve is suitable for carving, you need to test the carving with samples first, Pay attention to various safety precautions when carving. The laser power must be selected according to the process to be performed. 25 to 150 watts (CO2 laser) is most suitable for laser processing of polymer foam. Fiber lasers of 40 to 50 watts are most suitable for laser processing of metal or ceramic foam.
During the engraving process, pay attention to the exhaust measures, and there must be sufficient flow to remove the gas and particles generated during the laser processing in the foam laser engraving, cutting and marking equipment. Therefore, you need to be equipped with air assist to provide an air flow near the laser focus to help remove the gas and particles generated in the process of foam laser engraving, cutting and marking. Since foam is generally made of synthetic chemical materials, the chemical fumes or solid wastes generated during the cutting process need to be treated by the filtration system before being discharged into the external environment, which is for the health and safety of the carver and the working environment.
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