CN110455241A - A kind of device and method of on-line measurement belt steel surface oil film thickness - Google Patents
A kind of device and method of on-line measurement belt steel surface oil film thickness Download PDFInfo
- Publication number
- CN110455241A CN110455241A CN201910774440.5A CN201910774440A CN110455241A CN 110455241 A CN110455241 A CN 110455241A CN 201910774440 A CN201910774440 A CN 201910774440A CN 110455241 A CN110455241 A CN 110455241A
- Authority
- CN
- China
- Prior art keywords
- oiled
- plate method
- strip
- oil
- film thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 110
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 238000005259 measurement Methods 0.000 title claims abstract description 44
- 238000010422 painting Methods 0.000 claims abstract description 14
- 238000005303 weighing Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 235000015927 pasta Nutrition 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 15
- 229910052782 aluminium Inorganic materials 0.000 description 15
- 239000004411 aluminium Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A kind of device and method of on-line measurement belt steel surface oil film thickness, belong to cold-strip steel on-line monitoring equipment and method and technology field, are used for on-line measurement belt steel surface oil film thickness.Its technical solution is: will take oiled-plate method placement location on strip after present invention weighing, oiled-plate method is taken to pass through after oiler with strip, taking-up takes oiled-plate method, it is weighed again using high accuracy balance, finally the practical painting oil mass in strip upper surface is calculated using formula, by measuring in multiple and different positions, average painting oil mass is obtained；It recycles magnet that oiled-plate method will be taken to be adsorbed on strip lower surface, the oil film thickness of strip lower surface is measured using above-mentioned same steps；Finally the accuracy of oil film thickness is verified using calculating fuel pump speed.The strip that the present invention is capable of on-line checking any time applies oil condition, and detection speed is fast, does not have to on-line period, and can detect respectively to the upper and lower surfaces of strip, testing result can be reviewed, to guarantee the accuracy and reliability of testing result.
Description
Technical field
The present invention relates to a kind of device and method of on-line measurement belt steel surface oil film thickness, belong to cold-strip steel and supervise online
Measurement equipment and method and technology field.
Background technique
After cold-strip steel oiling, online precisely oil film thickness measurement is world-famous puzzle.The oil film of two methods measurement at present is thick
Degree；
1. offline sampling method
After Plate Production is complete, one piece of template is cut on product, is transported later to physics laboratory, measures surface using wipe method
Oil film thickness utilizes apparatus measures sea surface oil slick thickness.
That there are measurement periods is long for this method, can not be applied on a large scale, original oil film is destroyed in sampling process, cause to measure
Inaccuracy, while not being capable of measuring strip lower surface and applying oil mass.
2, on-line instrument mensuration,
To needing to sample the roughness on surface, inverse rate and carrying out calibration measurement, oil film thickness measurement uses weight method, Zhi Houli
With online apparatus measures.
This method there are on-line instrument measurement it is expensive, there are deviations for measurement accuracy, are not capable of measuring lower surface strip
Oil film thickness.
China Patent No. application number 201410845963.1 discloses " the measurement side of surface of aluminum plate unit area painting oil mass
The content of method ", the patent is as follows: 1) taking at least one piece of aluminium sheet sample, measure the initial weight A of all aluminium sheet samples；2) by institute
There is the oiling of aluminium sheet sample surfaces to clean up, the clean weight B of all aluminium sheet samples is measured after drying；3) aluminium sheet sample is calculated
Surface unit area apply oil mass: w=(A-B) ρ h/B, wherein ρ be aluminium sheet sample density；H is the thickness of aluminium sheet sample.This
The surface of aluminum plate unit area of invention applies the measurement method of oil mass, and surface of aluminum plate unit area applies in the calculating process of oil mass, only
Need to measure aluminium sheet sample initial weight and clean weight, the shape of aluminium sheet sample is unrestricted, can also be by muti-piece aluminium sheet sample
It measures simultaneously, the surface unit area for directly obtaining muti-piece aluminium sheet sample applies the average value of oil mass, the quantity of aluminium sheet sample
Can be more, the precision of measurement is higher, and the stability of measurement result is also more preferable.
But the method is not on-line monitoring method, needs to intercept sample, sample can only reflect painting oil condition at that time, such as
Fruit needs the painting oil condition of random continuous monitoring strip different moments in process of production, just must constantly intercept band steel sample,
This is clearly not accomplish.Meanwhile this method is only capable of measuring the painting oil condition of sample surfaces, cannot distinguish the upper table of detection strip
The respective state in face and lower surface, therefore cannot clearly reflect that the whole of strip applies oil condition.In addition, not having for testing result
The method for thering is check to examine, it cannot be guaranteed that the reliability of testing result.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of device of on-line measurement belt steel surface oil film thickness and sides
Method, this measurement method can apply oil condition by the strip of any time in on-line checking strip production process, and can distinguish
The upper and lower surfaces of strip are detected, testing result can be reviewed, with guarantee testing result accuracy and
Reliability.
The technical solution for solving above-mentioned technical problem is:
A kind of device of on-line measurement belt steel surface oil film thickness, it includes taking oiled-plate method, high accuracy balance, sealing cover, takes oiled-plate method
For plane steel plate, the material of steel plate and the material of strip are identical, take the width of oiled-plate method to be less than the width of strip, take the length of oiled-plate method
Greater than width, taking the area of oiled-plate method is known determining numerical value, takes oiled-plate method to be placed on belt steel surface, sealing cover is rectangle, is taken
It covers sealing cover after oiled-plate method oiling, the bottom surface of sealing cover and the upper surface of oiled-plate method is taken to have gap.
The device of above-mentioned on-line measurement belt steel surface oil film thickness, there are also side baffle, magnet, side baffle is arc hard for it
Plastics are highly higher than and take oiled-plate method, and the length of side baffle is greater than the length for taking oiled-plate method, two pieces of side baffles respectively with the two sides that take oiled-plate method
Vertical connection, the upper surface of magnet are adsorbed on strip lower surface, oiled-plate method are taken to be adsorbed below magnet.
A kind of on-line measurement belt steel surface oil film thickness of the device using above-mentioned on-line measurement belt steel surface oil film thickness
Method, it using following steps carry out:
The first step calculates belt steel surface oil film thickness:
A. using high accuracy balance to taking oiled-plate method to weigh；
B. after weighing, sealing cover is removed, oiled-plate method will be taken to be placed on pickling export inspection platform strip, starting outlet section strip steel, band
Steel speed is Xm/min；
Etc. c, take oiled-plate method by stopping outlet section, taking oiled-plate method, cover sealing cover after oiler；
D, it is weighed again using high accuracy balance；
E, using calculation formula (weight after taking before oiled-plate method oiling weight-to take oiled-plate method oiling)/oiled-plate method is taken to cut pasta product, band is calculated
The practical painting oil mass in steel upper surface calculates average painting oil mass after the measurement of multiple and different positions；
Second step carries out Accuracy Verification to above-mentioned oil film thickness:
F, oil outlet pump pump speed is measured by the setting production line speed of service, oiling；
G, measurement oil pump fills the time used in 1L measuring cup oil；
H, the time used in 1L measuring cup oil is filled using strip speed, oil pump and oiler sprays beam length, calculate in the unit time
The oiling gross area, formula are as follows:
Oil pump fills 1L measuring cup time * strip speed * oiler spray beam length=total oil spout area；
I, 1L oil weight, 1L oil volume/oil density=total weight are calculated using density formula；
J, it finally calculates weight/oiling gross area and show whether oil film weight, verification setting oil film weight and reality are consistent,
Total weight/total oil spout area=oil film thickness.
The method of the method for above-mentioned on-line measurement belt steel surface oil film thickness, measurement strip lower surface oil film thickness is:
K, by two pieces of side baffles respectively with take that the two sides of oiled-plate method are vertical to be connect, then the upper surface of magnet is adsorbed on strip lower surface,
Taking oiled-plate method to be adsorbed below magnet with two pieces of side baffles, the outer surface of two pieces of side baffles is respectively and under the strip of two sides
Surface roll is opposite；
L, a in the method for above-mentioned on-line measurement belt steel surface oil film thickness is repeated to step e, calculates strip lower surface oil film
Thickness.
The beneficial effects of the present invention are:
The present invention, to taking oiled-plate method to weigh, will take oiled-plate method placement location on strip, and take oiled-plate method with band using high accuracy balance after weighing
After steel passes through oiler, stop strip, take oiled-plate method, is weighed using high accuracy balance, finally calculated using formula again
The practical painting oil mass in strip upper surface obtains average painting oil mass by measuring in multiple and different positions；Recycle magnet that will take oiled-plate method
It is adsorbed on strip lower surface, the oil film thickness of strip lower surface is measured using above-mentioned same steps；Finally utilize calculating oil pump
Speed verifies the accuracy of oil film thickness.
The present invention is the pioneering of the device and method of measurement belt steel surface oil film thickness, solves in industry and does not solve for a long time
Certainly online quick and precisely measures belt steel surface oil film thickness and is unable to measure the problem of strip lower surface oil film thickness.
The present invention can apply oil condition by the strip of any time in on-line checking strip production process, and can be right respectively
The upper and lower surfaces of strip are detected, and testing result can be reviewed, with guarantee testing result accuracy and can
By property.
The present invention is convenient and easy, and it is precisely convenient to measure, and detection speed is fast, does not have to on-line period, can greatly shorten detection
Time improves detection efficiency, provides reliable technical support to improve belt steel product quality, reduces production cost, have
Significant economic benefit in industry has admirably promotion prospect.
Detailed description of the invention
Fig. 1 is the installation diagram of measurement belt steel surface oil film thickness device of the invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the structural schematic diagram for taking oiled-plate method, side baffle, magnet；
Fig. 5 is the side view of Fig. 4；
Fig. 6 is the top view of Fig. 4；
Fig. 7 is the structural schematic diagram of sealing cover；
Fig. 8 is the side view of Fig. 7；
Fig. 9 is the top view of Fig. 7.
It is marked in figure as follows: taking oiled-plate method 1, side baffle 2, magnet 3, sealing cover 4.
Specific embodiment
The device of on-line measurement belt steel surface oil film thickness of the invention is by taking oiled-plate method 1, side baffle 2, magnet 3, sealing cover 4
It is formed with high accuracy balance.
Fig. 4,5,6 show that taking oiled-plate method 1 is plane steel plate, and the material of steel plate and the material of strip are identical, take the width of oiled-plate method 1
Degree is of same size with strip, and the length of oiled-plate method 1 is taken to be greater than width, and taking the area of oiled-plate method 1 is known determining numerical value, takes oiled-plate method
1 is placed on belt steel surface.
Fig. 4,5,6 show, side baffle 2 is arc rigid plastics, and the length of side baffle 2 is greater than the length for taking oiled-plate method 1, two pieces
Side baffle 2 respectively with take that the two sides of oiled-plate method 1 are vertical to be connect, the outer surface of the two pieces of side baffles 2 strip lower surface with two sides respectively
Roller is opposite.The effect of side baffle is to contact after avoiding belt steel surface oiling with other roll surfaces, influences the accuracy for taking oiled-plate method to take oil.
Fig. 4,5,6 show that the upper surface of magnet 3 is adsorbed on strip lower surface, oiled-plate method 1 is taken to be adsorbed below magnet 3.
Fig. 7,8,9 show that sealing cover 4 is rectangle steel plate, and there is handle in the upper top surface of sealing cover 4, facilitate placement and remove.
Fig. 1,2,3 are shown, cover sealing cover 4 after taking 1 oiling of oiled-plate method, the bottom surface of sealing cover 4 has with the upper surface of oiled-plate method 1 is taken
Gap.
The method of on-line measurement belt steel surface oil film thickness of the invention, it is carried out using following steps:
The first step calculates belt steel surface oil film thickness:
A, using high accuracy balance to taking oiled-plate method to weigh；
B, after weighing, sealing cover is removed, oiled-plate method will be taken to be placed on pickling export inspection platform strip, starting outlet section strip steel, band
Steel speed is Xm/min；
Etc. c, take oiled-plate method by stopping outlet section, taking oiled-plate method, cover sealing cover after oiler；
D, it is weighed again using high accuracy balance；
E, using calculation formula (weight after taking before oiled-plate method oiling weight-to take oiled-plate method oiling)/oiled-plate method is taken to cut pasta product, band is calculated
The practical painting oil mass in steel upper surface calculates average painting oil mass after the measurement of multiple and different positions；
Second step carries out Accuracy Verification to above-mentioned oil film thickness:
F, oil outlet pump pump speed is measured by the setting production line speed of service, oiling；
G, measurement oil pump fills the time used in 1L measuring cup oil；
H, the time used in 1L measuring cup oil is filled using strip speed, oil pump and oiler sprays beam length, calculate in the unit time
The oiling gross area, formula are as follows:
Oil pump fills 1L measuring cup time * strip speed * oiler spray beam length=total oil spout area；
I, 1L oil weight, 1L oil volume/oil density=total weight are calculated using density formula；
J, it finally calculates weight/oiling gross area and show whether oil film weight, verification setting oil film weight and reality are consistent,
Total weight/total oil spout area=oil film thickness.
In the method for on-line measurement belt steel surface oil film thickness of the invention, the method for measurement strip lower surface oil film thickness
It is:
K, by two pieces of side baffles respectively with take that the two sides of oiled-plate method are vertical to be connect, then the upper surface of magnet is adsorbed on strip lower surface,
Taking oiled-plate method to be adsorbed below magnet with two pieces of side baffles, the outer surface of two pieces of side baffles is respectively and under the strip of two sides
Surface roll is opposite；
L, a in the method for above-mentioned on-line measurement belt steel surface oil film thickness is repeated to step e, calculates strip lower surface oil film
Thickness.
Present invention detection oil film thickness is accurate, and time-consuming is short, low-cost, does not have to on-line period, pole in the detection process
The earth improves the efficiency of unit.
Claims (4)
1. a kind of device of on-line measurement belt steel surface oil film thickness, it is characterised in that: it includes taking oiled-plate method (1), high-precision day
Flat, sealing cover (4), taking oiled-plate method (1) is plane steel plate, and the material of steel plate and the material of strip are identical, take the width of oiled-plate method (1) small
In the width of strip, the length of oiled-plate method (1) is taken to be greater than width, taking the area of oiled-plate method (1) is known determining numerical value, takes oiled-plate method
(1) it is placed on belt steel surface, sealing cover (4) is curved rectangle steel plate, covers sealing cover (4) after taking oiled-plate method (1) oiling, close
It covers the bottom surface of (4) and the upper surface of oiled-plate method (1) is taken to have gap.
2. the device of on-line measurement belt steel surface oil film thickness according to claim 1, it is characterised in that: there are also side blocks for it
Plate (2), magnet (3), side baffle (2) are arc rigid plastics, and the height of side baffle (2) is higher than the height for taking oiled-plate method (1), length
Greater than the length for taking oiled-plate method (1), two pieces of side baffles (2) respectively with take that the two sides of oiled-plate method (1) are vertical to be connect, the upper surface of magnet (3)
It is adsorbed on strip lower surface, oiled-plate method (1) is taken to be adsorbed below magnet (3).
3. a kind of on-line measurement belt steel surface oil film thickness of the device using above-mentioned on-line measurement belt steel surface oil film thickness
Method, it is characterised in that: it is carried out using following steps:
The first step calculates belt steel surface oil film thickness:
A, using high accuracy balance to taking oiled-plate method to weigh；
B, after weighing, sealing cover (4) are removed, oiled-plate method (1) will be taken to be placed on pickling export inspection platform strip, start outlet section band
Steel, strip speed Xm/min；
Etc. c, take oiled-plate method (1) by stopping outlet section, taking oiled-plate method (1), cover sealing cover (4) after oiler；
D, it is weighed again using high accuracy balance；
E, using calculation formula (weight after taking before oiled-plate method oiling weight-to take oiled-plate method oiling)/oiled-plate method is taken to cut pasta product, band is calculated
The practical painting oil mass in steel upper surface calculates average painting oil mass after the measurement of multiple and different positions；
Second step carries out Accuracy Verification to above-mentioned oil film thickness:
F, oil outlet pump pump speed is measured by the setting production line speed of service, oiling；
G, measurement oil pump fills the time used in 1L measuring cup oil；
H, the time used in 1L measuring cup oil is filled using strip speed, oil pump and oiler sprays beam length, calculate in the unit time
The oiling gross area, formula are as follows:
Oil pump fills 1L measuring cup time * strip speed * oiler spray beam length=total oil spout area；
I, 1L oil weight, 1L oil volume/oil density=total weight are calculated using density formula；
J, it finally calculates weight/oiling gross area and show whether oil film weight, verification setting oil film weight and reality are consistent,
Total weight/total oil spout area=oil film thickness.
4. the method for on-line measurement belt steel surface oil film thickness according to claim 3, it is characterised in that: under measurement strip
The method of sea surface oil slick thickness is:
K, by two pieces of side baffles (2) respectively with take that the two sides of oiled-plate method (1) are vertical to be connect, then the upper surface of magnet (3) is adsorbed on band
Steel lower surface, taking oiled-plate method (1) to be adsorbed below magnet (3) with two pieces of side baffles (2), two pieces of side baffles (2) it is outer
Surface is opposite with the strip lower surface roller of two sides respectively；
L, a in the method for above-mentioned on-line measurement belt steel surface oil film thickness is repeated to step e, calculates strip lower surface oil film
Thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910774440.5A CN110455241A (en) | 2019-08-21 | 2019-08-21 | A kind of device and method of on-line measurement belt steel surface oil film thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910774440.5A CN110455241A (en) | 2019-08-21 | 2019-08-21 | A kind of device and method of on-line measurement belt steel surface oil film thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110455241A true CN110455241A (en) | 2019-11-15 |
Family
ID=68488229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910774440.5A Pending CN110455241A (en) | 2019-08-21 | 2019-08-21 | A kind of device and method of on-line measurement belt steel surface oil film thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110455241A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202255301U (en) * | 2011-09-19 | 2012-05-30 | 上海宝钢工业检测公司 | Quantified-sampling device for metal surface oil films |
| CN104483001A (en) * | 2014-12-31 | 2015-04-01 | 中铝西南铝冷连轧板带有限公司 | Method for measuring amount of oil applied on surfaces of aluminum plates per unit area |
| US20170032060A1 (en) * | 2015-07-27 | 2017-02-02 | Dror Davidi | Calculating thicknesses of applied coating material |
| CN206787497U (en) * | 2017-05-23 | 2017-12-22 | 易安基自动化设备(北京)有限公司 | A kind of device of on-line checking plane oil film thickness |
| CN107790339A (en) * | 2017-09-14 | 2018-03-13 | 首钢京唐钢铁联合有限责任公司 | A kind of galvanized wire Electrostatic greasing system, oiling control method and device |
| CN108776070A (en) * | 2018-07-06 | 2018-11-09 | 中国建材检验认证集团股份有限公司 | Tubing coating bending strength test method |
| CN210441843U (en) * | 2019-08-21 | 2020-05-01 | 唐山钢铁集团有限责任公司 | Device for measuring thickness of oil film on surface of strip steel on line |
-
2019
- 2019-08-21 CN CN201910774440.5A patent/CN110455241A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202255301U (en) * | 2011-09-19 | 2012-05-30 | 上海宝钢工业检测公司 | Quantified-sampling device for metal surface oil films |
| CN104483001A (en) * | 2014-12-31 | 2015-04-01 | 中铝西南铝冷连轧板带有限公司 | Method for measuring amount of oil applied on surfaces of aluminum plates per unit area |
| US20170032060A1 (en) * | 2015-07-27 | 2017-02-02 | Dror Davidi | Calculating thicknesses of applied coating material |
| CN206787497U (en) * | 2017-05-23 | 2017-12-22 | 易安基自动化设备(北京)有限公司 | A kind of device of on-line checking plane oil film thickness |
| CN107790339A (en) * | 2017-09-14 | 2018-03-13 | 首钢京唐钢铁联合有限责任公司 | A kind of galvanized wire Electrostatic greasing system, oiling control method and device |
| CN108776070A (en) * | 2018-07-06 | 2018-11-09 | 中国建材检验认证集团股份有限公司 | Tubing coating bending strength test method |
| CN210441843U (en) * | 2019-08-21 | 2020-05-01 | 唐山钢铁集团有限责任公司 | Device for measuring thickness of oil film on surface of strip steel on line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101470016B (en) | Apparatus for measuring volume by built-in method | |
| CN204718883U (en) | A kind of fixture for arbitrarily angled bending test | |
| CN105445361B (en) | A kind of Magnetic Flux Leakage Inspecting defect three-D imaging method being distributed restructing algorithm based on magnetic charge | |
| CN105300266B (en) | A kind of eddy current detection apparatus and method of automobile zinc plated plate plated layer thickness | |
| CN102901695A (en) | Rock sample porosity determination method | |
| CN201138234Y (en) | Liquid material dynamic metering equipment | |
| CN202133430U (en) | Three-dimensional laser scan based large volume measurement equipment with high precision | |
| CN210441843U (en) | Device for measuring thickness of oil film on surface of strip steel on line | |
| CN110455241A (en) | A kind of device and method of on-line measurement belt steel surface oil film thickness | |
| CN105424888A (en) | Testing device capable of being used for gas sensor calibration | |
| CN104101288A (en) | Device for measuring concrete surface stripping degree | |
| CN102507393B (en) | Coating surface contacting angle measuring device and testing method | |
| CN201974150U (en) | Tool for detecting symmetry degree of key slot crankshaft of automobile engine | |
| CN114812470A (en) | Measurement calibration method for film on-line thickness gauge | |
| CN106404134A (en) | Method and device for measuring mass of solid in solid and liquid mixture | |
| CN102636100B (en) | A kind of warpage of label paper measuring method and application thereof | |
| CN108398111A (en) | A kind of method for soft package lithium ion power thickness measurement device | |
| CN105044149A (en) | Method for measuring heat conductivity of heat insulation material under different water contents | |
| KR20130029600A (en) | Measuring apparatus and method of average sprayed paint of specimen for vessels | |
| CN211043067U (en) | Sewage corrosion evaluation device | |
| KR100296002B1 (en) | Apparatus and method for measuring powdering and plating exfoliation of plated steel plate | |
| Redner | Photoelastic coatings: Some practical difficulties, mostly in the area of test planning and handling of the coating application efficiently and economically, are reviewed by the author | |
| CN109374204A (en) | Three floating instrument float assembly balance detecting devices of one kind and method | |
| CN204128474U (en) | A kind ofly measure the device that concrete surface peels off degree | |
| CN202928499U (en) | On-line thickness test apparatus for electrode coating machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |