Zirconia ceramic foam filter with high quality

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Tianjin
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1 pc
Supply Capability:
10000000 pc/month

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Product Description:



Specifications


1. dia. 50*22mm-20ppi 

2. material: zirconia 

3. color: yellow 

4. tolerance: +/- 2mm 

5. working temperature: 1700 C 


Ceramic Foam Filters

Zirconia for Steel Foundries

 

 

Characteristics

 

Ceramic Foam Filters are designed for the filtration of molten steel, alloy steel, and especially for high quality steel alloys casting temperature up to 1700 °C , which have high porosity (76%-82%), high thremal shock resistance and large specific surface.

 

 

 

Advantages

 

Ceramic foam filters help to enhanced quality of castings and reduce cost.

 

l  Special 3D structure to reduce turbulence of flowing molten metal.

l  Reduce defective rate of castings.

l  Improved mechanical properties of castings.

 

l  Improved precision of dimensions and shapes of castings.

 

l  Reduced costs of machining operations.

 

l  Simplify pouring systems and increase utilization ratio of mold.

 


 

Specifications

 

Materials

Zirconia

Working Temp.(°C)

≤1700

Color

Yellow

Pore Size(PPI)

10

Porosity(%)

76~82

Compression Strength(MPa)

≥2.5

Bulk Density(g/cm3)

0.7~1.1

Thermal Shock Resistance

Excellent

Application

Carbon steel low alloy steel

 

Note: Special size and 10-20 pore size (PPI) can be custom made.

 

 

 

Selection

1) Pore size is based on casting material and casting weight, regularly 10ppi and 20ppi for steel casting filtration.

2) Filter size is decided by the sculpt, fusion and the characteristic of ceramic foam filter.

Package

The filters are packed in carboard box and pallet protecting them from damage.

Box size: 54x36x28cm.

Pallet size: 1.1x1.1x1.9m.

36 boxes per pallet, 10 pallet per 20’’ container, 20 pallets per 40’’container.

Notice of Application

1. In order to reduce the impact of hot molten metal to filters, pouring bowl shall put down as low as possible from filters.

2. It is recommended to use compressed air to blow dust off from filter before usage.

3. Ceramic foam filters should be stored in dry place to avoid moisture.


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Q:Does the ceramic factory use hydrochloric acid?
Ceramic filter comes with a combined cleaning system, usually to ensure backwashing normal, combined cleaning (nitric acid + ultrasonic + backwash) in place.
Q:What are the causes of the powder moisture in the ceramic filter?
The ore condition has changed, such as high concentration of material, fine grain size and increase of mud content.
Q:What's the reason for high water content in filtration copper concentrate?
Can the cleaning of ceramic plate meet the requirement?Such as cleaning of ceramic plate is not up to the requirements, plugging holes will increase the risk of ceramic plate, ceramic plate plug serious suction effect will become worse (filter cake moisture content increased, cake thickness reduction), cleaning of ceramic plate refers to washing and cleaning.Backwash to ensure that the water filter filter water pressure in the 0.1MPa or so, at least not less than 0.07MPa or less, it is necessary to consider before the filter water pressure is low or water filter element needs to be replaced.Joint cleaning to ensure that the ultrasonic can be no trouble, every time cleaning the amount of nitric acid up to standard. If the filtration effect is not ideal, the cleaning cycle can be washed from 45--60 every 8 hours, changed to 6--7 hours and cleaned for more than 1 hours.
Q:Ceramic filter suddenly do not smoke, a little later on their own good, what reason?
The size of ceramic filter is generally on both sides of the vacuum tank, such as 50 square meters with 5 square meters of ceramic filter / ring ceramic filter plate combination (possible), there are 10 discs, the ceramic plate left a vacuum tank on the left of the 5 disc for filtration, vacuum filtration tank for the ceramic plate on the right right of the 5 disc. If a vacuum system temporarily fails, it may cause poor suction, no suction, and a normal operation at the other end.
Q:How many degrees does the ceramic filter melt?
You should say clearly what ceramic you useHowever, as a melting furnace or filter medium, alumina products are the most versatile, but also silicon carbide, corundum, mullite, spinel and so on. They use very high temperatures.
Q:The ultrasonic wave of ceramic filter is not good. What's going on?
In ancient China, filtration technology was applied to produce paper made from plant fibers in 200 bc. The paper method was improved in AD 105. He wandered in dense in papermaking during plant fiber pulp fine bamboo. Water curtain gap filtration, a thin layer of wet pulp stay on the bamboo surface, after drying into paper.
Q:The vacuum degree of the ceramic filter is normal and the cake water is large
The vacuum degree of the ceramic filter is normal at about -0.08MPa. Under normal circumstances, the water content of the filter cake treated with a ceramic filter is about 10%, and the moisture content of the tail filter cake is about 15%. The water content of the filter cake increases with the increase of water content in the ceramic filter. I analyze the reasons from two aspects.
Q:What are the functions of honeycomb ceramic filters?
High quality and high density straight hole mesh, the product has high heat resistance and impact resistance properties of cast high fever temperature, design straight hole to guarantee the balance between strength and flow, effectively remove impurities and slag particles, the mechanical properties of casting, the surface quality and the qualified rate of products is greatly improved.
Q:How to determine the quality of ceramic fiber filter board simply?
Ceramic fiber board quality can be judged from the following aspects:1, appearance. The surface is flat and the cutting surface is well arranged, and vice versa.2 density. Press the hands, and the surface is soft and smooth.3, process. Vacuum suction and continuous production process.4, cross section, slag ball content is low.
Q:Excuse me, what's the reason that all ceramic filters do not attract ore?
After the joint cleaning, 0~2 hours of suction effect may be good, 2~4 may drop slightly, 4 hours later will become worse and worse, or even suck. This case should first check the backwash water pressure (instantaneous maximum pressure should not be less than 0.08MPa) is to meet the requirements, should also advance down (to ensure normal and ultrasonic cleaning combined with nitric acid dosage sufficient) and prolong the cleaning time.

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