Midiflow – GMK

GMK-1: “Below the parting line” Features:

• Injection point may be below the parting line.
• Allows injection close behind upstanding ribs.
• Gating can be far off the moulding wall.
• Spherical geometry in the gate area allows injection with at laterally inclined or curved surfaces.

GMK-1: “Above the parting line” Features:

• Injection point may be up to 8 mm above the parting line.
• Allows injection close behind upstanding ribs.
• Gating can be far off the moulding wall.
• Spherical geometry in the gate area allows injection with at laterally inclined or curved surfaces.

GMK-2: “Below the parting line” Features:

• Injection point may be up to 5 mm below the parting line.
• Allows injection close behind upstanding ribs.
• Gating can be far off the moulding wall.
• Spherical geometry in the gate area allows injection with at laterally inclined or curved surfaces.

GMK-2: “Above the parting line” Features:

• Injection point may be up to 5 mm above the parting line.
• Allows injection close behind upstanding ribs.
• Gating can be far off the moulding wall.
• Spherical geometry in the gate area allows injection with at laterally inclined or curved surfaces.

GMK-3: “Below the parting line” Features:

• Injection point may be up to 8 mm below the parting line.
• Allows injection close behind upstanding ribs.
• Gating can be far off the moulding wall.
• Spherical geometry in the gate area allows injection with at laterally inclined or curved surfaces.

GMK-3: “Above the parting line” Features:

• Injection point may be above the parting line.
• Allows injection close behind upstanding ribs.
• Gating can be far off the moulding wall.
• Spherical geometry in the gate area allows injection with at laterally inclined or curved surfaces.

When processing thermoplastic elastomers, please observe the following recommendations to ensure reliable de-molding:

• The distance “L” should decrease with the Shore hardness value.
• The guide length L*0.8 does not apply to TPEs (or TPU, TPA, respectively). In these applications, a centering cone should be provided as shown in our drawing.
• This application instruction applies to elastomers in the medium Shore hardness range (uo to 100 Shore A).

We would like to make it as easy as possible for you to select the right gate size. To help you make your choice we have plotted a number of charts indicating the range of possible gate sizes for a given molding weight and material. Please take into account the viscosity of the plastic before making your selection. Since the plastics industry is marketing an ever growing number of modified plastics in each category, it is impossible to provide binding data here. Please also note our warranty disclaimer.

Catamold 420W-DIN 1.4028-X20Cr13  ( until July 2017,  100Cr6 1.3505 )

Material designation:
BASF Catamold 420W – DIN 1.4028 – X20Cr13.
Hardable stainless steel for production of MIM-Parts.

Applications:
Components with high hardness and wear resistance combined with good corrosion resistance against water and steam; e. g. tools, cutting blades, surgical instruments, nozzles, bearings.

• High wear resistance
• High corrosion resistance
• Good machinability
• Weldable

Composition:
C = 0.35 – 0.50 %
Cr = 12 – 14 %
Fe = Balance

Surface quality, roughness Ra 0.8 – 1.3