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B I M E TA L L I C C Y L I N D E R S

KLUIN WIJHE KLUIN WIJHE ALSO HAS A DEEPHOLE DRILLING DIVISION AND A PRECISION PRODUCTS DIVISION. FOR MORE

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INFORMATION, REQUEST THAT BROCHURE.

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THE NETHERLANDS T E L : + + 31- ( 0 ) 5 7 0 - 5 2 8 7 7 7 FA X : + + 31- ( 0 ) 5 7 0 - 5 2 3 2 70 INFO@KLUINWIJHE.COM W W W. K L U I N W I J H E . C O M

KLUIN WIJHE B.V. • B I M E TA L L I C C Y L I N D E R S • DEEPHOLE DRILLING • PRECISION PRODUCTS

Production: Turksma & Partners, erkend reclamebureau.

813 0 A A W I J H E

10-07-250

8131 T X W I J H E

• Bimetallic Cylinders • Deephole Drilling • Precision Products C R A F T S M A N S H I P

T H A T

C O V E R S

A L L

L I N I N G S


KLUIN WIJHE Bimetallic Cylinders

Cylinders made to measure If you need single or twin-screw cylinders for new or broken down injection moulding and extrusion machines, then you want them made to measure. Literally and figuratively! Literally: the dimensions ordered are the dimensions supplied - accurately to the 0.01 mm. Figuratively: delivery times and other agreements are handled just as carefully. Indeed, as long as your machines are stopped you incur production losses. Only established specialists who know your problems and are ready to advise and assist you, can offer you this service.

Kluin Wijhe, the bimetallic specialists At Kluin Wijhe, metal runs "in their blood". Our know-how of materials and processing techniques is exceptional. For example, we can extend the life of injection and extrusion cylinders by five to ten times by using bimetallic. A specialist technique, which is in safe hands with us. We can apply internal metal alloys up to 12 mm thick, whilst guaranteeing minimal tolerances.

Versatile specialists Apart from bimetallic cylinders, Kluin Wijhe offers other services, such as deephole drilling and the manufacturing of precision products. If, after deephole drilling, certain parts need further machining or treatment, we shall be glad to assist you. In this way, you save time as well as money. If you involve us in your production process at an early stage, you can make optimum use of our services. Besides, our advice often results in substantial savings.

Obviously, you can rely on us, because we have been ISO 9002 quality certified ever since 1982 and, besides, we are a member of the Aalberts Industries N.V. holding, listed on the Amsterdam Stock Exchange. Other services: • boring • turning • milling • E.D.M. • honing • cylindrical grinding


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BIMETALLIC CYLINDERS

Kluin Wijhe uses a centrifugal technique for its manufacture of bimetallic cylinders. In this process, cylinders are casted with a hard metal alloy in an extremely sophisticated furnace at a temperature of approx. 1200°C.

Relative wear of bimetallic alloys in comparison with various types of nitride. Increase in cylinder bore diameter (in mm)

The hard facts

(1)

(2)

(3)

KB 200 (1) GAS-NITRIDED STEEL KB 100

(2) GAS-NITRIDED STEEL NITRALLOY -135 M

KB 300 KB 350

(3) IIONITRIDED STEEL NITRALLOY -135 M

Cilinder wall and extra hard layer, shown 70 times magnified.

Quality KB 100

Composition Fe / Ni / Cr / B

Hardness 58 - 64 HRC

Characteristics: Abrasion resistance Corrosion resistance Very satisfactory Satisfactory

KB 200

Cr / Ni / Co / B

48 - 54 HRC

Satisfactory

Excellent

KB 300

Cr / Ni / Co / B W+V Carbides

52 - 56 HRC + CARBIDES

Excellent

Very satisfactory

KB 350

Ni / Cr / B / W Carbides

60-67 HRC + CARBIDES

Superior

Superior

MONTHS

It goes without saying that dimensional variations and inaccuracies are reduced to the absolute minimum. This means that the life of your cylinder can be improved by a factor of five to ten. Kluin Wijhe is one of few companies specialized in bimetallic linings.

Variation in hardness in the bore wall. KB 350 KB 100

ROCKWELL C HARDNESS

KB 200

MILLIMETERS

Hardness of bimetallic alloys under rising temperatures. KB 350 KB 300

How many KB do you need? The abrasion resistance of the lining depends on the lining chosen. There are four levels of quality, of which KB 350 guarantees the best abrasion resistance.

NITRIDED STEEL

ROCKWELL C HARDNESS

The great advantage of bimetallic linings is that their hardness is even throughout the layer thickness. Contrary to nitrided cylinders. Thanks to the bimetallic technology, cylinders offer even better abrasion and corrosion resistance under high temperatures and pressure.

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TEMPERATURE IN DEGREES CELCIUS

Technical specifications Supporting material: 1.0402 - 1.7225 - 1.0403 - 1.4401 - INCONEL 600 Other materials are being developed.

Technical design (standard): • • • • • •

Internal diameter 25-500 mm External diameter 60-600 mm Lining thickness 0.7-1.5 mm Length 8,000 mm Bore tolerance/roughness H7/Ra 0.8 um Bore straightness The straightness of the hole is determined by measuring maximum deflection in the bore drilled, while the cylinder is being turned around (TIR). Diameter from .. to .. 25 to 115 mm 115 mm from 115 to 200 mm from 115 to 200 mm from 200 to 300 mm larger than 300 mm even larger: ask the manufacturer

Length up to 30 D from 30 D to 36 D up to 24 D from 24 D to 30 D from 30 D to 36 D up to 24 D from 24 D to 30 D 10 D

Maximum TIR permitted 0.25 mm 0.30 mm 0.25 mm 0.30 mm 0.38 mm 0.30 mm 0.38 mm 0.38 mm

Application: - General standard bimetallic for synthetics processing. - Suitable for extremely aggressive materials such as fluorpolymers, also used in the food industry as heat exchanger. - Excellent abrasion and corrosion resistance and suitable for synthetics processing with metal and glass fillers. - Outstanding properties of wear-resistance for use with solid and/or dense synthetics.


SCREWS

We do more than just cylinders. For an efficient production process, the cylinder and screw must be geared to one another to the optimum. That is why Kluin Wijhe as a manufacturer of bimetallic cylinders is also able to supply the right screw. As a complete unit, which does what it must do.

IN PRACTICE

Screws Our service has come to perfection through the additional supply of the pumping heart of the machine, "the screw". This is how we guarantee optimum adjustment between cylinder and screw. The screws and tips are manufactured entirely according to your requirements or applications, whether gas-nitrided, armoured, coated or hardened. And in the case of screws, repair is often more economical than replacement.

In injection moulding and extrusion machines, temperatures and pressure may rise very high. Besides, the raw materials to be processed are often aggressive and abrasive and reduce the economic life of the cylinder and screw. Since economic life and effective production time are of vital importance, high demands are made on the various parts. Kluin Wijhe manufactures and supplies bimetallic cylinders and screws which match with the highest demands.

Speciality of the house Apart from single-screw cylinders, Kluin Wijhe also manufactures bimetallic twin-screw cylinders. The twin cylinder is manufactured by joining two cylinders of exactly the same size. This process is carried out with extreme precision in order to guarantee minimal tolerances.

Pressure sleeves The pulsating injection of injection moulding machines produces extremely high pressures on the discharge side of the cylinder. Usually, the newly developed backing materials provide sufficient protection. If construction or extremely high pressures require additional strength, a pressure sleeve is shrunk on to the discharge side of the cylinder to ensure that the materials can withstand high levels of pressure.

Pressure sleeve

Should you require further details after reading the brief description of our services in this brochure, please contact us. We can then directly respond to your specific questions or requirements. For more information or an appointment, please call ++31-(0)570-52 87 77.


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