Advanced Technology Division

ADVANCED TECHNOLOGY

Apparatus | Measuring Equipment | Gel Time Tester

Auto Gel Time Tester “MADOKA”

The resin curing time (gel time) can be measured automatically.
With good reproducibility, a highly reliable measurement result can be obtained.

Manufacturer

Cyber Co., Ltd.

Leave automatic gel time measurement up to MADOKA!

Features

■ The biaxial eccentric stirring provides data that correlates with JIS and IPC manual methods.

ˑ The method A for phenolic resin gelation time is automated (JIS K6910: 2007).

ˑ The gel time measurement with prepreg is adhered to (IPC-TM-650 2.3.18A).

■ Principles
(1) Put resin on a heat plate and measure the torque when the resin is stirred.

(2) As resin curing progresses, the torque increases. This change is plotted on a graph.

(3) The time when an arbitrary set THR (threshold) is reached is determined to be the gel time.

 


 

■ About the heat plate temperature

ˑ It becomes stable and ready for measurement after 5 minutes from powering on.

ˑ The temperature profile can be set.
ˑ Heat plate temperature setting: Room temperature up to 300°C

 

 

 

■ The dedicated software “MADOKA tool” allows for database management and data analysis.

MADOKA tool is software useful for statistical process control (SPC) and statistical quality control (SQC).

It is most suitable for consistent quality control in manufacturing, quality control, research, and other departments of a company.

Specifications

Power supply: 100 VAC ±10% 50/60 Hz, Max. 2A
Size 200 mm (W) × 590 mm (H) × 290 mm (D)
Gross weight: 15 Kg
Hot plate specimen pool size: Diameter of 20 mm, depth of 2 mm
Temperature setting: Room temperature to up to 300°C, Variation: ±0.5°C
Stirring section: Biaxial eccentricity
Rotation speed of rotating section: 60 to 350 rpm
Revolving section: 0 to 140 rpm
Resolution of vertical position auto-setting: 0.0025 mm or less
Gap accuracy: ±0.025 mm or less
Other setting gap: 0.1 to 1.0 mm
Necessary amount of sample (rough value for one measurement): Powder of about 0.2 to 0.5 g
Liquid: 0.2 to 0.4 ml

Data

◆ Data management and data analysis are possible with MADOKA tool (PC software).

 

◆ Quality management is possible using the statistical process control (SPC) and statistical quality control (SQC) functions.

 

◆ Database management of measurement results is possible.

Application(s)

■ Various kinds of resin can be measured.(A specimen including filler can also be measured.)

Prepreg, epoxy resin, phenolic resin, semiconductor encapsulant epoxy mold compound (EMC), silicone resin, LED encapsulant, coating, ink other hardening resin

Options

Support for bar-code reading and external input/output (option)

Demo Examples

Measuring the Gel Time of Two-Liquid Plastic Coating Material

Two-liquid plastic coating material: Liquid
Input: 0.3 ml
Heat plate temperature: 80°C

Measurement procedure
(1) Mix two liquids, a base compound and a curing agent, in advance, and then draw up 0.3 ml with a syringe.
Note: Curing proceeds as exposed to a temperature.
(2) Drop it at the time when a buzzer sounds three times.
(3) Graph the changes in torque when resin is cured with time.
(4) It ends automatically as the torque reaches the set value.
Note: The set value of torque is determined as desired.

Measuring the Gel Time of Prepreg

Prepreg: Powder
Input: 0.3 g
Heat plate temperature: 170°C

Measurement procedure
(1) Take powder out of prepreg and sift the powder to remove glass cloth fiber.
(2) Drop 0.3 g of prepreg powder onto the heat plate.
(3) Graph the changes in torque when resin is cured with time.
(4) It ends automatically as the torque reaches the set value.
Note: The set value of torque is determined as desired.

Measuring the Gel Time of Semiconductor Sealing Material

Semiconductor sealing material: Powder
Input: 0.3 g
Heat plate temperature: 175°C

Measurement procedure
(1) Crush a lump of sealing material and pass it through a sieve.
(2) Drop 0.3 g of sealing material powder onto the heat plate.
(3) Graph the changes in torque when resin is cured with time.
(4) It ends automatically as the torque reaches the set value.
Note: The set value of torque is determined as desired.

Showroom Information

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We have started on-line demonstrations.

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