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Tapering

1 step / 2 steps taper is available.。

Pipe with polished I.D. is able to be tapered.

Please ask for special angle.

EXMIRE pipe with taper greatly contributes to preventing drops and to improve the minute amount of dispensing.

Taper angle: 6°, 12°, 30°
Greatest taper: Pipe O.D. from φ2.0mm to PIPE I.D. φ0.2mm

絞り加工

TECH INFO

There are 2 types of pipe tapering methods: Seizing and Drawing

SEIZING

ap pipe using rotated dice (seizing dice)

cut5

DRAWING

Draw pipe through one fixed dice.

cut6

CHARACTERS OF TAPER METHOD

There are the following features between 2 types of taper methods. It will be chosen depending on the intended use.

TAPER METHODAdvantagesDisadvantages
SEIZING Better work efficiency
Easy to keep concentricity
Reduce inner diameter
Thicker wall
Rougher I.D. surface
DRAWING Maintain the wall thickness and I.D. Poor work ability
Hard to keep concentricity

LIMIT FOR ASSEMBLING

The work ability is as follows:

  • Seizing: O.D. below 5mm
  • Drawing: O.D. below 3mm

TAPER ANGLE

Taper angle will vary depending on the taper method.

  • Seizing: 2.5°pitch from 6°to 20°are available
  • Drawing: 5°, 6°, 12°, 13°, 30° are available

Minimum I.D. for taper

I.D. varies depending on the taper method.
・Seizing: 0.3mm

・Drawing: 0.2mm

 

The basic diameters are as follows:

Gauge nameBEFORE PROCESSDIMENSION OF TIP PART AFTER PROCESS
O.D.I.D.SEIZINGDRAWING
O.D.I.D.O.D.I.D.
12 2.70 2.40 1.4 0.7 1.4 1.1
13 2.4 2.08 - - - -
14 2.11 1.85 - - - -
15 1.80 1.46 1.2 0.6 1.2 0.86
16 1.65 1.41 - - - -
17 1.45 1.22 - - - -
18 1.27 0.86 0.9 0.1 0.9 0.49
19 1.09 0.69 - - - -
20 0.90 0.58 - - - -
21 0.81 0.50 - - - -
22 0.72 0.42 0.5 0 0.5 0.2
23 0.64 0.32     - -
24 0.56 0.30     - -
25 0.51 0.27     - -
26 0.46 0.24     - -
27 0.41 0.20     0.3 0.1

LENGTH OF PROCESS

Following process lengths (including taper part) are available.

SEIZING cut7
DRAWING cut8