CN208607135U - A kind of carbon fiber friction coefficient testing device - Google Patents
A kind of carbon fiber friction coefficient testing device Download PDFInfo
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- CN208607135U CN208607135U CN201821287175.5U CN201821287175U CN208607135U CN 208607135 U CN208607135 U CN 208607135U CN 201821287175 U CN201821287175 U CN 201821287175U CN 208607135 U CN208607135 U CN 208607135U
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Abstract
The utility model provides a kind of carbon fiber friction coefficient testing device, including motor control box, friction roller control cabinet and equal a pair of of the clips of load, motor is placed with inside the motor control box, the friction roller control cabinet be equipped with can electromagnetic heating friction roller, the friction roller is connected by drive rod with the motor, motor driven institute friction roller is rotated, carbon fiber is suspended on the friction roller, the clips include the first clips and the second clips, the both ends of the carbon fiber are arranged in suspension respectively, second clips connect force snesor, the force snesor connects computer.The main testing procedure of the utility model includes: each technical parameter before setting test, test various carbon fibers at a set temperature, by connection computer can real-time display frictional force and time change curve, automatically analyze the coefficient of friction of carbon fiber, measuring accuracy is high, simple and convenient for operation.
Description
Technical field
The utility model relates to carbon fiber processing performance analysis test evaluation technical fields, and in particular to one kind is under controllable temperature
Test the device of carbon fiber friction coefficient.
Background technique
The frictional property of carbon fiber refers to that carbon fiber contacts with other material surfaces with carbon fiber or carbon fiber and occurs opposite
Behavior when movement is one of most important processing performance of carbon fiber.The frictional behaviour of carbon fiber not only influences production and processing property
Can, and influence the appearance of product.For example, when producing carbon fiber, if the coefficient of friction of carbon fibre tow has differences, respectively
The exhibition yarn of a tow also can difference, the big exhibition yarn of coefficient of friction is difficult, and then influences the production of carbon fiber prepreg, leads
Prepreg is caused phenomena such as stowing, water ripples occur.Therefore, to the research of the test device and test method of carbon fiber friction coefficient
It is of great significance.
Currently, capstan winch method Y151 fiber type frictionmeter is mostly used in general fibre frictoin performance test field,
It reads friction force value using weighing scale to test twisting force, and coefficient of friction then is calculated by formula.But this equipment is not particularly suited for carbon
On the one hand the measurement of frictional coefficient of fiber is since there are some disadvantages, such as force value of weighing scale to test twisting force to differentiate for this test equipment
Rate lower (0.5 × 10-3CN), force measurement range is smaller by (250 × 10-3CN), weighing scale to test twisting force handle and artificial range estimation are rotated
Reading may cause operating error, and more demanding to the qualification of operator, running part is using gear shift, instrument
Device is easy to happen failure, without temperature control device etc..On the other hand, from the factor of carbon fiber itself, carbon fiber is not
It is same as other fibers, filament diameter very little, only about 5~7 μm, and since modulus of carbon fibres is higher, so brittleness is bright
It is aobvious to be greater than other fibers.Carbon fiber surface is coated with one layer of sizing agent simultaneously, it is therefore an objective to protect carbon fiber and have carbon fiber
Convergence, so, what device need to measure is the coefficient of friction for the carbon fiber that surface has coated sizing agent.But the property of sizing agent by
The height of the influence of temperature, temperature influences the size of its viscosity, to influence the frictional force of carbon fiber.In addition, carbon fiber is pre-
The production of leaching material is also required to suitable carbon fiber friction power, and the influence of temperature is vital.Therefore, according to above-mentioned carbon fiber
The testing requirement of coefficient of friction, there is an urgent need to a kind of high-precisions, easy to operate, quick and temperature-controllable carbon fiber friction coefficient
Analyzer.
In view of the foregoing, the utility model proposes a kind of under controllable temperature tests the device of carbon fiber friction coefficient
And method.The utility model can measure the coefficient of friction of carbon fiber at different temperatures, be carbon fiber and prepreg production and
Evaluation provides exact reference data, reduces research and development and the production cost of carbon fiber and prepreg, and device is easy to operate, fastly
Prompt, conveniently, measuring accuracy is higher.
Utility model content
The technical solution of the utility model is: a kind of carbon fiber friction coefficient testing device, including motor control box,
Friction roller control cabinet and load equal a pair of of clips are placed with motor, the friction roller control inside the motor control box
Case processed be equipped with can electromagnetic heating friction roller, the friction roller is connected by drive rod with the motor, the motor driven
Institute's friction roller is rotated, and carbon fiber is suspended on the friction roller, and the clips include the first clips and the second tension
Folder, the both ends of the carbon fiber are arranged in suspension respectively, and second clips connect force snesor, the force snesor connection
Computer.
Further improvement of the utility model is: the motor control box body is equipped with power knob and motor control
Panel processed, the control panel for motor include the No.1 LED display that can set, adjust and show motor speed,
Further improvement of the utility model is: the cabinet of the friction roller control cabinet is equipped with power switch and temperature
Control panel, the temperature control panel include No. two LED displays that can set, adjust and show friction roll temperature, wherein
The temperature setting of the friction roller is up to 150 DEG C, and 0.5 DEG C of precision.
Further improvement of the utility model is: the friction roller is metal material, chrome-faced, diameter 50mm, length
200mm is spent, surface roughness Rmax is 3 μm, and radial oscillating quantity is not more than 0.5mm in friction roller rotation process.
Further improvement of the utility model is: the range of speeds of the motor is 0 ~ 1000r/min.
Further improvement of the utility model is: the force value resolution ratio of the force snesor is less than 0.25 × 10-3CN, power
It is worth measurement range and is greater than 1000 × 10-3CN, the load signal of measurement are transmitted in computer, and data are after analysis is handled with friction
Power-time graph form is output in display, and forms paper document by printer.
Further improvement of the utility model is: the tension clip load is 100 × 10-3cN、200×10-3cN、500
×10-3One of cN.
Further improvement of the utility model is: a kind of test method of carbon fiber friction coefficient testing device, including
Step in detail below:
(1) first carbon fiber friction coefficient testing device is fixed in horizontal table top before test, maintains test room temperature
Degree and moisture constant, room temperature are 20 DEG C ± 2 DEG C, and relative humidity is 45% ± 3%；
(2) it turns on the power switch, adjusts friction roller temperature control panel, select a specific temperature, state maintains 5 points
Clock；
(3) take the smooth carbon fibre tow of a Duan Changyue 20cm, it is ensured that its is smooth, without turn over, Twisting hangs on electricity
Magnetic heats on friction roller, makes the equal length that both ends are sagging, and the first clips for waiting loads and the second clips are hung on carbon
Fibre bundle both ends, wherein the second clips connect with force snesor and mutually fix；
(4) power knob is opened, control panel for motor is adjusted, selectes suitable motor speed；
(5) when the motor rotates, friction roll shaft, which follows suit, does constant speed revolution clockwise, due to carbon fiber and surface of friction roller
There is frictional force, make the heterotonia at carbon fibre tow both ends, are indicated respectively with f1 and f2, and f is tension clip load, wherein f1
> f2, it is f0 that computer, which receives the load signal of force snesor, at this time, then f0=f1-f2, and according to Euler's formula, carbon fiber is rubbing
The coefficient of friction wiped on roller can be calculated with following formula:
In equation: f1, f2 are tension suffered by the carbon fiber of friction roller both ends；Cornerite of the θ between carbon fiber and friction roller；
E is natural constant；Coefficient of friction of the μ between carbon fiber and friction roller.
When θ=180 °, θ=π, then
For ease of calculation, natural logrithm ln is converted into the common logarithm lg with 10 bottom of for, then can obtained:
(6) computer automatic analysis load-time graph, obtains the frictional force of carbon fiber, is calculated according to above-mentioned formula
To carbon fiber friction coefficient。
The beneficial effects of the utility model are: the utility model provides a kind of carbon fiber friction coefficient testing device and side
Method can test the coefficient of friction of fiber carbon fiber under variable temperature, by connection computer can real-time display frictional force and when
Between change curve, automatically analyze the coefficient of friction of carbon fiber, measuring accuracy is high, simple and convenient for operation.For carbon fiber and carbon fiber
The production and evaluation for tieing up prepreg provide exact reference data, reduce research and development and the production cost of carbon fiber and prepreg.
Detailed description of the invention
Fig. 1 is the schematic diagram that carbon fiber friction coefficient unit is tested under controllable temperature
Fig. 2 is the schematic diagram that carbon fiber friction coefficient unit friction roller partial cross section is tested under controllable temperature
Wherein, 1- motor control box, 2- drive rod, 3- friction roller control cabinet, 4- carbon fibre tow, 5- friction roller, 6- power
Sensor, the first clips of 7-, the second clips of 8-, 9- temperature control panel, 10- power switch, 11- motor, 12- power supply are pressed
Button, 13- control panel for motor, 14- computer, 15- display, 16- printer.
Specific embodiment
In order to deepen the understanding of the utility model, the utility model is done further in detail below in conjunction with drawings and examples
Thin description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Embodiment 1
The present embodiment provides a kind of carbon fiber friction coefficient testing devices, as shown in Figure 1, including motor control box 1, friction
A pair of of the clips equal with load of roller control cabinet 3 are placed with motor 11, the motor control inside the motor control box 1
1 cabinet of case is equipped with power knob 12 and control panel for motor 13, and the control panel for motor 13 includes that can set, adjust simultaneously
Show the No.1 LED display of motor speed.
The friction roller control cabinet 3 be equipped with can electromagnetic heating friction roller 5, on the cabinet of the friction roller control cabinet 3
Equipped with power switch 10 and temperature control panel 9, the temperature control panel 9 includes that can set, adjust and show friction roller temperature
No. two LED displays of degree.The friction roller 5 is metal material, chrome-faced, diameter 50mm, length 200mm, rough surface
Spending Rmax is 3 μm, and radial oscillating quantity is not more than 0.5mm, the temperature setting highest of the friction roller 5 in 5 rotation process of friction roller
It is 150 DEG C, 0.5 DEG C of precision, the friction roller 5 is connected by drive rod 2 with the motor 11, and the driving of motor 11 is rubbed
Roller 3 is rotated, and carbon fibre tow 4 is suspended on the friction roller 5, and the clips include the first clips 7 and second
Power folder 8, the both ends of the carbon fibre tow 4 are arranged in suspension respectively, and second clips 8 connect force snesor 6, the power
Sensor 6 connects computer 14.
The present embodiment provides a kind of test methods of carbon fiber friction coefficient testing device, comprising the following specific steps
(1) first carbon fiber friction coefficient testing device is fixed in horizontal table top before test, maintains test room temperature
Degree and moisture constant, room temperature are 20 DEG C ± 2 DEG C, and relative humidity is 45% ± 3%；
(2) 10 are turned on the power switch, friction roller temperature control panel 9 is adjusted, selected temperature is 50 DEG C, and state maintains 5 points
Clock；
(3) same model is chosen with a batch of 3 ingot of HF10-3K-A carbon fiber, every ingot takes that one section of long 20cm's is smooth
Carbon fibre tow 4 hangs on electromagnetic heating friction roller [5], makes the equal length that both ends are sagging, is 200 × 10 by load-3cN
The first clips 7 and the second clips 8 be hung on the both ends of carbon fibre tow 4 respectively；
(4) power knob 12 is opened, control panel for motor 13 is adjusted, selecting motor speed is 30r/min；
(5) when motor rotates as shown in Figure 2, friction roll shaft follows suit and does constant speed revolution clockwise, due to carbon fiber and
There is frictional force for surface of friction roller, make the heterotonia at 4 both ends of carbon fibre tow, computer 14 receives force snesor at this time
6 load signal, computer automatic analysis load-time graph obtain the frictional force of above-mentioned 3 sections of carbon fibers, according to formula meter
Calculation obtains carbon fiber friction coefficient and is respectively as follows:
μ1=0.3370、μ2=0.3458、μ3=0.3226, average obtain the friction coefficient μ of the ingot fiber=
0.3351。
The beneficial effect of the present embodiment is: the utility model provides a kind of carbon fiber friction coefficient testing device and method,
The coefficient of friction that fiber carbon fiber under variable temperature can be tested, can real-time display frictional force and time by connection computer
Change curve automatically analyzes the coefficient of friction of carbon fiber, and measuring accuracy is high, simple and convenient for operation.It is pre- for carbon fiber and carbon fiber
The production and evaluation for soaking material provide exact reference data, reduce research and development and the production cost of carbon fiber and prepreg.
Implement example 2
A kind of test method of carbon fiber friction coefficient testing device, comprising the following specific steps
(1) first carbon fiber friction coefficient testing device is fixed in horizontal table top before test, maintains test room temperature
Degree and moisture constant, room temperature are 20 DEG C ± 2 DEG C, and relative humidity is 45% ± 3%；
(2) 10 are turned on the power switch, friction roller temperature control panel 9 is adjusted, selected temperature is 50 DEG C, and state maintains 5 points
Clock；
(3) same model is chosen with a batch of 3 ingot of HF30S-12K-H carbon fiber, every ingot takes that one section of long 20cm's is smooth
Carbon fibre tow 4, hang on electromagnetic heating friction roller 5, make the equal length that both ends are sagging, by load be 200 × 10-3cN
The first clips 7 and the second clips 8 be hung on the both ends of carbon fibre tow 4 respectively；
(4) power knob 12 is opened, control panel for motor 13 is adjusted, selecting motor speed is 20r/min；
(5) when motor 11 rotates, friction roll shaft, which follows suit, does constant speed revolution clockwise, due to carbon fiber and friction roller 5
There is frictional force on surface, make the heterotonia at 4 both ends of carbon fibre tow, and computer 14 receives the negative of force snesor 6 at this time
Lotus signal, computer automatic analysis load-time graph obtain the frictional force of above-mentioned 3 sections of carbon fibers, are calculated according to formula
It is respectively as follows: to carbon fiber friction coefficient
μ1=0.4435、μ2=0.4577、μ3=0.4228, average obtain the friction coefficient μ of the ingot fiber=
0.4413。
Implement example 3
A kind of test method of carbon fiber friction coefficient testing device, comprising the following specific steps
(1) first carbon fiber friction coefficient testing device is fixed in horizontal table top before test, maintains test room temperature
Degree and moisture constant, room temperature are 20 DEG C ± 2 DEG C, and relative humidity is 45% ± 3%；
(2) it turns on the power switch [10], adjusts friction roller temperature control panel [9], selected temperature is 120 DEG C, state dimension
It holds 5 minutes；
(3) same model is chosen with a batch of 3 ingot of HF40S-12K-G carbon fiber, every ingot takes that one section of long 20cm's is smooth
Carbon fibre tow 4, hang on electromagnetic heating friction roller [5], make the equal length that both ends are sagging, by load be 500 × 10- 3The first clips 7 and the second clips 8 of cN are hung on the both ends of carbon fibre tow 4 respectively；
(4) power knob 12 is opened, control panel for motor 13 is adjusted, selecting motor speed is 30r/min；
(5) when motor 11 rotates, friction roll shaft, which follows suit, does constant speed revolution clockwise, due to carbon fiber and friction roller 5
There is frictional force on surface, make the heterotonia at 4 both ends of carbon fibre tow, and computer 14 receives the negative of force snesor 6 at this time
Lotus signal, computer automatic analysis load-time graph obtain the frictional force of above-mentioned 3 sections of carbon fibers, are calculated according to formula
It is respectively as follows: to carbon fiber friction coefficient
μ1=0.3970、μ2=0.4158、μ3=0.4090, average obtain the friction coefficient μ of the ingot fiber=
0.4072。
The technical staff of industry above-described embodiment and says it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention described in bright book, on the premise of not departing from the spirit and scope of the utility model, this
Utility model will also have various changes and improvements, and these various changes and improvements fall within the scope of the claimed invention.
The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
1. a kind of carbon fiber friction coefficient testing device, it is characterised in that: including motor control box, friction roller control cabinet and load
Equal a pair of of clips, are placed with motor inside the motor control box, the friction roller control cabinet be equipped with can electromagnetism add
The friction roller of heat, the friction roller are connected by drive rod with the motor, and motor driven institute friction roller is rotated, carbon
Fabric suspension is on the friction roller, and the clips include the first clips and the second clips, and suspension is arranged in institute respectively
The both ends of carbon fiber are stated, second clips connect force snesor, and the force snesor connects computer.
2. a kind of carbon fiber friction coefficient testing device according to claim 1, it is characterised in that: the motor control box
Cabinet is equipped with power knob and control panel for motor, and the control panel for motor includes that can set, adjust and show motor
The No.1 LED display of revolving speed.
3. a kind of carbon fiber friction coefficient testing device according to claim 1, it is characterised in that: the friction roller control
The cabinet of case is equipped with power switch and temperature control panel, and the temperature control panel includes that can set, adjust and show to rub
No. two LED displays of roll temperature are wiped, wherein the temperature setting of the friction roller is up to 150 DEG C, 0.5 DEG C of precision.
4. a kind of carbon fiber friction coefficient testing device according to claim 1, it is characterised in that: the friction roller is gold
Belong to material, chrome-faced, diameter 50mm, length 200mm, surface roughness Rmax is 3 μm, is radially put in friction roller rotation process
Momentum is not more than 0.5mm.
5. a kind of carbon fiber friction coefficient testing device according to claim 1, it is characterised in that: the revolving speed of the motor
Range is 0 ~ 1000r/min.
6. a kind of carbon fiber friction coefficient testing device according to claim 1, it is characterised in that: the force snesor
Force value resolution ratio is less than 0.25 × 10-3CN, force value measurement range are greater than 1000 × 10-3CN, the load signal of measurement are transmitted in meter
Calculation machine, data are output in display or printer after analysis is handled.
7. a kind of carbon fiber friction coefficient testing device according to claim 1, it is characterised in that: the tension clip load
It is 100 × 10-3cN、200×10-3cN、500×10-3One of cN.
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| CN201821287175.5U CN208607135U (en) | 2018-08-10 | 2018-08-10 | A kind of carbon fiber friction coefficient testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680498A (en) * | 2018-08-10 | 2018-10-19 | 江苏恒神股份有限公司 | A kind of carbon fiber friction coefficient testing device and method |
| CN113588545A (en) * | 2021-09-28 | 2021-11-02 | 南通宝硕纺织品有限公司 | Artificial intelligence check out test set of fabrics processing |
| CN113702280A (en) * | 2021-08-31 | 2021-11-26 | 盐城工学院 | Testing machine for measuring friction coefficient |
-
2018
- 2018-08-10 CN CN201821287175.5U patent/CN208607135U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680498A (en) * | 2018-08-10 | 2018-10-19 | 江苏恒神股份有限公司 | A kind of carbon fiber friction coefficient testing device and method |
| CN113702280A (en) * | 2021-08-31 | 2021-11-26 | 盐城工学院 | Testing machine for measuring friction coefficient |
| CN113588545A (en) * | 2021-09-28 | 2021-11-02 | 南通宝硕纺织品有限公司 | Artificial intelligence check out test set of fabrics processing |
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