MI: Initial Torque

This calculation returns the Maximum Torque recorded at Test Start.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

ML: Minimum Torque

This calculation returns the minimum torque value measured during the test;

The calculation provides useful information regarding the viscosity of the green compound at test temperature.

For example, this information may be useful for:

- the correct evaluation of the force needed for injection moulding (depending from the shape of the mould and the size of the injection channels)

- the setting of temperature and force for extrusion process.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

tML: Time at Minimum Torque

This calculation returns the time, from the start of the test, when the ML point is reached (in the case of maintenance of the ML value over a period of time, it represents the termination point of the interval)

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

MH: Maximum Torque

This calculation returns the maximum torque value measured during the established test time.

Depending from the product under test, from the test time selected and from the test temperature, the curve may have reached a plateau value or not

This calculation is an indication of the mechanical characteristics of the cured compound and has positive correlation with other mechanical properties like hardness and tensile stress at set strain.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

tMH: Time at Maximum Torque

This calculation returns the time, from the start of the test, when the MH point is reached (in the case of maintenance of the MH value over a period of time, it represents the starting point of the interval)

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

ts_x: Scorch Time

The Scorch time tsx is the time required for the torque to increase by x units from ML. The typical value of x for an MD Rheometer is 1 dN•m.

The scorch time (time to incipient cure) tsx is a measure of the processing safety of the compound.

For injection moulding, it provides a relative indication of the maximum available time for the complete filling of the cavities.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

t'_x: time to set percentage of curing

The time to a percentage of full cure from minimum torque t’_x is the time taken for the torque to reach: ML + x*(MH-ML)/100

Frequently used values of t’_x are:

- t’_10: is a measure of the early stages of cure

- t’_50: provides the slope of the curve is greatest at this point.

- t’_90: is often used as an indicator of optimum press cure

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Percentage of Curing desired.

Reference Curve (0=S*,1=S')

M_x: torque at set percentage of curing

Torque at a percentage of full cure from minimum torque M_x is the torque value at: ML + x*(MH-ML)/100

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Percentage of Curing desired.

Reference Curve (0=S*,1=S')

Tanƌ@ML: Tangent of ƌ at Minimum Torque

This calculation returns the reading of the Tanƌ curve when S' curve reaches ML.

The calculation is an expression of visco-elastic properties of the uncured sample.

UNIT: num

Tanƌ@MH: Tangent of ƌ at Maximum Torque

This calculation returns the reading of the Tanƌ curve when S' curve reaches MH.

The calculation is an expression of visco-elastic properties of the cured sample.

UNIT: num

S"@ML: Viscous curve at Minimum Torque

This calculation returns the reading of the S" curve when S' curve reaches ML.

The calculation is an expression of viscous properties of the uncured sample.

UNIT: dN*m or Lbf*In

S"@MH: Viscous curve at Maximum Torque

This calculation returns the reading of the S" curve when S' curve reaches MH.

The calculation is an expression of viscous properties of the cured sample.

UNIT: dN*m or Lbf*In

tR_x: Time for Reversion of x dN*m

This calculation returns the time from test start, when a torque reduction of x dN*m from MH is detected.

The calculation is an expression of the degradation of the sample at the testing conditions.

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Torque decay compared to MH

Reference Curve (0=S*,1=S')

Rev_t: Reversion at set Time

This calculation returns the torque reduction from MH at the set test time.

The calculation is an expression of the degradation of the sample at the testing conditions.

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Test time

Reference Curve (0=S*,1=S')

MCR: Maximum Curing Rate

This calculation returns the maximum torque increase value in the time unit measured during the test (corresponds to flexure point of the increasing line of the elastic curve S')

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m/sec

TMCR: Time at Maximum Curing Rate

This calculation returns the time from test start at Maximum Cure Rate

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

Via dell'industria, 18

Bergamo (Italy)

te. +39 035 461146

www.gibitre.it

info@gibitre.it

Gibitre Instruments

Below you can find the description of the test results produced by RheoCheck software

RheoCheck: Test Results

Below you can find the description of the test results produced by RheoCheck software

MI: Initial Torque

This calculation returns the Maximum Torque recorded at Test Start.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

ML: Minimum Torque

This calculation returns the minimum torque value measured during the test;

The calculation provides useful information regarding the viscosity of the green compound at test temperature.

For example, this information may be useful for:

- the correct evaluation of the force needed for injection moulding (depending from the shape of the mould and the size of the injection channels)

- the setting of temperature and force for extrusion process.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

The calculation provides useful information regarding the viscosity of the green compound at test temperature.

For example, this information may be useful for:

- the correct evaluation of the force needed for injection moulding (depending from the shape of the mould and the size of the injection channels)

- the setting of temperature and force for extrusion process.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

tML: Time at Minimum Torque

This calculation returns the time, from the start of the test, when the ML point is reached (in the case of maintenance of the ML value over a period of time, it represents the termination point of the interval)

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

MH: Maximum Torque

This calculation returns the maximum torque value measured during the established test time.

Depending from the product under test, from the test time selected and from the test temperature, the curve may have reached a plateau value or not

This calculation is an indication of the mechanical characteristics of the cured compound and has positive correlation with other mechanical properties like hardness and tensile stress at set strain.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

Depending from the product under test, from the test time selected and from the test temperature, the curve may have reached a plateau value or not

This calculation is an indication of the mechanical characteristics of the cured compound and has positive correlation with other mechanical properties like hardness and tensile stress at set strain.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

tMH: Time at Maximum Torque

This calculation returns the time, from the start of the test, when the MH point is reached (in the case of maintenance of the MH value over a period of time, it represents the starting point of the interval)

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

ts_x: Scorch Time

The Scorch time tsx is the time required for the torque to increase by x units from ML. The typical value of x for an MD Rheometer is 1 dN•m.

The scorch time (time to incipient cure) tsx is a measure of the processing safety of the compound.

For injection moulding, it provides a relative indication of the maximum available time for the complete filling of the cavities.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

The scorch time (time to incipient cure) tsx is a measure of the processing safety of the compound.

For injection moulding, it provides a relative indication of the maximum available time for the complete filling of the cavities.

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Reference Curve (0=S*,1=S')

t'_x: time to set percentage of curing

The time to a percentage of full cure from minimum torque t’_x is the time taken for the torque to reach: ML + x*(MH-ML)/100

Frequently used values of t’_x are:

- t’_10: is a measure of the early stages of cure

- t’_50: provides the slope of the curve is greatest at this point.

- t’_90: is often used as an indicator of optimum press cure

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Percentage of Curing desired.

Reference Curve (0=S*,1=S')

Frequently used values of t’_x are:

- t’_10: is a measure of the early stages of cure

- t’_50: provides the slope of the curve is greatest at this point.

- t’_90: is often used as an indicator of optimum press cure

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Percentage of Curing desired.

Reference Curve (0=S*,1=S')

M_x: torque at set percentage of curing

Torque at a percentage of full cure from minimum torque M_x is the torque value at: ML + x*(MH-ML)/100

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Percentage of Curing desired.

Reference Curve (0=S*,1=S')

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Percentage of Curing desired.

Reference Curve (0=S*,1=S')

Tanƌ@ML: Tangent of ƌ at Minimum Torque

This calculation returns the reading of the Tanƌ curve when S' curve reaches ML.

The calculation is an expression of visco-elastic properties of the uncured sample.

UNIT: num

The calculation is an expression of visco-elastic properties of the uncured sample.

UNIT: num

Tanƌ@MH: Tangent of ƌ at Maximum Torque

This calculation returns the reading of the Tanƌ curve when S' curve reaches MH.

The calculation is an expression of visco-elastic properties of the cured sample.

UNIT: num

The calculation is an expression of visco-elastic properties of the cured sample.

UNIT: num

S"@ML: Viscous curve at Minimum Torque

This calculation returns the reading of the S" curve when S' curve reaches ML.

The calculation is an expression of viscous properties of the uncured sample.

UNIT: dN*m or Lbf*In

The calculation is an expression of viscous properties of the uncured sample.

UNIT: dN*m or Lbf*In

S"@MH: Viscous curve at Maximum Torque

This calculation returns the reading of the S" curve when S' curve reaches MH.

The calculation is an expression of viscous properties of the cured sample.

UNIT: dN*m or Lbf*In

The calculation is an expression of viscous properties of the cured sample.

UNIT: dN*m or Lbf*In

tR_x: Time for Reversion of x dN*m

This calculation returns the time from test start, when a torque reduction of x dN*m from MH is detected.

The calculation is an expression of the degradation of the sample at the testing conditions.

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Torque decay compared to MH

Reference Curve (0=S*,1=S')

The calculation is an expression of the degradation of the sample at the testing conditions.

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

CALCULATION PARAMETERS:

Torque decay compared to MH

Reference Curve (0=S*,1=S')

Rev_t: Reversion at set Time

This calculation returns the torque reduction from MH at the set test time.

The calculation is an expression of the degradation of the sample at the testing conditions.

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Test time

Reference Curve (0=S*,1=S')

The calculation is an expression of the degradation of the sample at the testing conditions.

UNIT: dN*m or Lbf*In

CALCULATION PARAMETERS:

Test time

Reference Curve (0=S*,1=S')

MCR: Maximum Curing Rate

This calculation returns the maximum torque increase value in the time unit measured during the test (corresponds to flexure point of the increasing line of the elastic curve S')

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m/sec

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: dN*m/sec

TMCR: Time at Maximum Curing Rate

This calculation returns the time from test start at Maximum Cure Rate

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

REFERENCE STANDARD: ISO 6502-1, ISO 6502-3

UNIT: mm:cc (minutes, minutes/100) or mm:ss (minutes, seconds) or Seconds

Call to action

Please accept the Privacy Policy. Have a nice browse.

Per continuare accettate il trattamento dei dati.

By accepting you agree that your data will be handled according to

Gibitre Instruments’s Privacy Notice on Personal Data Processing.

Accettando acconsentite al trattamento dei dati da parte di Gibitre Instruments srl

come descritto nell'Informativa sul trattamento dei dati personali.