Investment Casting Filters
Product Line Overview

Improve Performance via Cleaner Metal

The ASK Chemicals (legacy) has represented

to maximize your value. In conjunction with oursuperior quality, excellence and innovation within thesuperior product portfolio we offer three outstanding

investment casting filtration market for overcomplimentary services to our customer-base:

three decades. ASK Chemicals developed fully

Technical Services, Design Services and Research &sintered reticulated ceramics in the early 1980's.

Development. Maximizing your profitability is ourThis revo­lutionary technology stands as the beginninghighest priority. With ASK Chemicals we guaranteeof filtration within high temperature alloys. Throughyour expectations will be surpassed.

this advancement investment casters worldwide
have now enjoyed higher quality clean metal withexceptional yield enhancements.
ASK Chemicals UDICELL™ reticulated ceramics –world renowned for their quality – stand as thepinnacle brand within the industry. Produced to thevery highest standards and using only the finest
materials this filter excels in performance, qualityand consistency.
Positioned as innovation leaders, ASK Chemicalshas introduced major patented technology throughout
its history. Our edge-coated offerings alongside ourhigh surface area filters stand as a testament to thisfact. Additionally, though, ASK Chemicals hasdeveloped a holistic business approach designed

2|

Developed fully sintered reticulated
ceramics (legacy)
Over 30 years of innovation
Highly controlled in-house production
Custom solutions
Holistic value added services|3Basic Information
Investment casting filter families
UDICELL™
	Highest quality & purity investment casting filters
Alumina and zirconia based
UDICELL™ master melt alloy
	Custom sizes & shapes meant for use in tundish
furnaces

Industries served
Aerospace
Investment casting filtration focuses on structural castings, as wellas engine blades & vanes within the aerospace industry• Superalloy & aluminumLand based energy
The land based energy sector utilizes investment casting filters foruse in large ground-based castings parts (e.g. blades)• Superalloys

Biomedical
The biomedical field utilizes several types of specialty metals for usein prosthetics. Extremely pure filters are required in this application• Superalloys4|

EXACTFLO™ Alumina	Highly pure filters ideal for capturing inclusions

Automotive
Increased customer demands have led to highly intricate engines & engine
parts. The modern turbo charger represents this change• Steel & superalloys

Master melt alloys
High quality ingot production within tundish designed furnaces
pro­duces the base alloys required in investment casting production• AlloysFirearms
Firearms (e.g. pistols) utilize investment casting filters in the production offrames, triggers & hammers – high impact components• SteelCommercial castings
The sports & recreation industry is extremely broad. Investment casting filters
are used in many applications such as boat propellers, motorcycle frames,golf clubs etc.
• Steel & aluminum

Custom solutions
Apart from the system solutions mentioned in this brochure, ASK Chemicals also offers you custom solutions to fit your individualprocess. Please contact us to discuss your specific needs.
|5UDICELL™ Cup Filters
Top performing filters with multiple options
Cup filters are widely used because of their ease-of-use. Ensuring proper placement
within the mold is essentially the key component to master. ASK Chemicals
produces the highest quality cup filters in the industry. Our filters are extremely
flex­ible in regards to designability for custom solutions. We also provide ourUDICELL™ cup filters in a wide variety of styles, including a full range of pore sizes.

Benefits• Removes oxide inclusions• Provides laminar flow of metal into mold• Available in tapered design
Incorrect placment

Cup placement

Correct placment

Proper cup placement ensures the success of your filter.
Improperly placed cups will result in inconsistent flow rates andpotentially improper sealing that can create gaps for molten
metal to flow through.

Cup filter
Gate filter

Cup filter

Filter size

2 TOD x 1

50 TOD x 25

10 ppi
kg /
lb /
sec
sec
3.15
73 TOD x 1

75 TOD x 25

7.20

inch

In-line filter

Flow rate

mm

16Capacity

15 ppi
kg /
lb /
sec
sec
2.84
6.3

20 ppi
kg /
lb /
sec
sec
2.55
5.67

kg
50

110

63

141

6.48

5.83

111

247

143

318

14.4

12.96

Air meltlb

Vacuum melt
kg4 TOD x 1 100 TOD x 25

12.60

28

11.34

25.2

10.21

22.68

198

440254565

5 TOD x 1 125 TOD x 25

19.35

43

17.42

38.7

15.67

34.83

309

687

397

883

TOD = Outer diameter
The details supplied should be regarded as reference values and not warranted values. Other sizes and shapes available on request.

6|lb

UDICELL™ Gate Filters
Custom designs for the finest filtration
Edge coated gate filters provide the last second filtration closest to the casting(s).
Gate filters also allow for the finest filtration. ASK Chemicals offers gate filters inmultiple shapes and sizes and are also available with edge coating.

Benefits• Filtration nearest casting• Filtration at last moments• Available in multiple shapes
Shapes & sizes• Round• Square• Donut• CustomGate filter
Gate filter

Cup filter

In-line filter

Filter size

Flow rate

Capacity

0.50

1310 ppi
kg /
lb /
sec
sec
0.19
0.43

37

4

90.75

19

0.44

0.97

0.39

0.87

0.35

0.79

7

15

920

1.00

25

0.78

1.73

0.70

1.56

0.63

1.40

1227

1635inchmm

15 ppi
kg /
lb /
sec
sec
0.17
0.39

20 ppi
kg /
lb /
sec
sec
0.16
0.35

Air melt

Vacuum melt

kgkg

lblb

The details supplied should be regarded as reference values and not warranted values. Other sizes and shapes available on request.

|7

UDICELL™ In-line Filters
Reticulated filters for increased cleanlinessIn-line filters provide filtration closer to the castings and allow for finer pore size
filtration. In-line filters produce laminar flow and reduce metal turbulence providing
greater protection against shell mold erosion. ASK Chemicals offers in-line filters
in a variety of edge coats. Various shapes and sizes are also available as dictatedby the runner system.

Benefits• Provides laminar flow
• Available with edge coating• Filtration nearer to casting
Edge coats

FGFG – Range of fiber gasket materials to ensure a snug fit
SEC – smooth uniform edge coating for straight wall filters
FEC – durable edge coating applied to tapers and special shapes
No edge coat – standard filter webs

SECFECSTANDARD

In-line filter

Cup filter

Gate filter

Filter size

2 TOD x 1

50 TOD x 25

10 ppikg /lb /secsec
3.15
73 TOD x 175 TOD x 25

7.20

inch

In-line filter

Flow rate

mm

16Capacity

15 ppi
kg /
lb /
sec
sec
2.84
6.3

20 ppi
kg /
lb /
sec
sec
2.55
5.67

kg
50

110

63141

6.48

5.83

111

247

143318

14.4

12.96

Air meltlb

Vacuum meltkg

4 TOD x 1 100 TOD x 25

12.60

28

11.34

25.2

10.21

22.68

198

440254565

5 TOD x 1 125 TOD x 25

19.35

43

17.42

38.7

15.67

34.83

309

687

397

883

TOD = Outer diameter
The details supplied should be regarded as reference values and not warranted values. Other sizes and shapes available on request.

8|lb

UDICELL™ Tube & Dam Filters
Filters for master alloy production
Tube and dam filters are exclusively used in master melt alloy production within aTundish furnace. ASK Chemicals offers custom shapes and sizes to accommodate
different Tundish designs. Additionally, dual pore filters comprised of multiple poresizes also exists.

Benefits• Ability to accommodate various tundish designs• Multiple tubular sizes• Available with edge coats, NewWave and dual pore
• Allows for double or triple filtration of metal

Dual poreASK can produce a filter with multiple pore sizes allowing for double filtration of metal within
a single filter. The coarser, stronger filter webs on the inlet face of the filter protect the finer filter
webs on the outlet face. Filters are available in any combination of pore sizes.

10 PPI
30 PPINewWave
ASK Chemicals NewWave design increases the surface area of the filter face providing benefits tothe metalcaster. The undulating surface reduces molten metal splash during pouring and aides inquicker priming of the filter.

|9EXACTFLO™ Alumina FiltersSuperior inclusion capturing for the highest demands
Alumina filters for aerospace industry have excellent oxide inclusion capturing
capabilities for the most demaning of applications. Available in dual pore, edge
coatings, various pore sizes and various sizes and shapes.

Benefits• Ability to capture inclusions in aluminum alloys• Comes in a variety of sizes & shapes• Available in multiple special features• Customizable

Aerospace – Alumina filters
The aerospace industry utilizes castings in the most demanding of applications. Consequentially,
the quality & performance required of these castings naturally is of utmost importance.
EXACTFLO™ Alumina filters are an ideal solution for the non-ferrous aerospace castings market.
Their fully sintered composition provides excellent strength and removal of oxides from themolten metal.

10 |Added Value for our Customers
Application technology and technical sales – for complete process transparency
Application technology and technical sales at ASK Chemicals offer our customers comprehensive expertisein all areas of foundry technology and metallurgy. We offer a comprehensive service that focuses on theproduction process as a whole and helps customers not only to cut costs but also to enhance their processes.
ASK Chemicals also conducts casting defect analysis and offers tailored training sessions on the customer’s
own premises.

Benefits• Improved decision-making via greater transparency• Reliable recommendations• Quick response• Customized solution development• Cost in-use reporting (i.e. savings)• Casting defect analyses• On-site training sessions

Technical expertise at your service
ASK Chemicals supports our investment casting customer-base via technical expertise. Our team of experts partners
with our customers to find the ideal filter for their specific application(s). We consider every critical factor: metal type, metal
temperature, pour weight, pour time, required filter shape, filter placement and type of casting. All of these must
be considered…one size filter simply doesn’t fit all situations.

| 11Design Services – for perfect casting results
Our Design Services team monitors the entire casting development process from initial design to final
production of actual cast parts (i.e. prototypes). Our highly experienced engineers enjoy a wide
range of knowledge within all aspects of foundry technology and metallurgy. In addition, we use
only the most advanced simulation software offered today: MAGMA, Novacast, FLOW-3D andArena-Flow®. Beyond fully optimized designs and simulation expertise, the Design Services teamcooperates with external companies and service providers to assure proper project alignment for
unparalleled results and guaranteed customer satisfaction.

Benefits• Higher productivity and optimized catalyst
consumption• Optimized design and manufacture of modelplates, core boxes and molds• Manufacturing process design, including
inorganic technology• Calculation of optimal feed

• Less scrap• Shorter product launch times• Quicker time-to-market

Simulation services
The simulation of casting processes provides foundries with invaluable casting mold information. Specifically, thisbenefit allows for the optimization of gating & feeding systems, overflows, venting design and risers. Moreover, it
provides critical insight into the influences and effects directly related to casting integrity such as, cooling & heating
measurements and filling & solidification times.

From the idea to the prototype
ASK Chemicals supports your entire process from concept to prototype production. How you benefit:
comprehensive expertise from a single source.

Simulation

Cores /Molds

Prototypes| 12

Research and development – for innovation near you
Our R&D department performs innovation driven groundwork as well as market and customer driven
development. Interaction between these three areas is of fundamental importance in offering ourcustomers technologically sophisticated products and efficiency enhancing solutions at all times.
Through close cooperation and the constant exchange of ideas with our application technology andtechnical sales specialists, R&D at ASK Chemicals is always in tune with the market and also has apresence on the customer's own premises itself.

Benefits• Highly experienced researchers• Global presence and availability• Comprehensive knowledge of the regional• Short response times for our customers• First class equipment

sand types and technological requirements

Comprehensive research and development services
Pilot foundry

Product development and technical support• Fully equipped research foundry• Casting defect analysis• Mold production, mold / core package assemblyand casting• Full spectrum chemical & polymer analysis• Product, process and test method development• "Real World" foundry process representation
Metallurgical investigations• Comprehensive examination of the graphite structure
and metallic matrix: Graphite size, Number of nodules,
Degree of dispersion, Nodularity, Ferrite / pearlite ratio• Preparation of metallurgical reports
Sand laboratory• Examination of high temperature materials• Testing of tensile strength, compression and transverse
loading• Sand characterization and analysis| 13

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This information is based on our current state of knowledge and does not represent assurance of the properties of the products described. We are only
liable for product-related advice and information within the scope of duties of disclosure included in collateral contractual agreements unless expressly
agreed otherwise. (03/ 24)

Visit www.ask-chemicals.com/trademarks for a complete list of our trademarks.
Please contact ASK for any questions concerning the usage of these marks.