CN105424087A - Carton quality inspection and detection method - Google Patents

Carton quality inspection and detection method Download PDF

Info

Publication number
CN105424087A
CN105424087A CN201510789145.9A CN201510789145A CN105424087A CN 105424087 A CN105424087 A CN 105424087A CN 201510789145 A CN201510789145 A CN 201510789145A CN 105424087 A CN105424087 A CN 105424087A
Authority
CN
China
Prior art keywords
carton
section
sampling
test
data
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.)
Granted
Application number
CN201510789145.9A
Other languages
Chinese (zh)
Other versions
CN105424087B (en
Inventor
卢豪杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNSHAN GUOJI ELECTRONICS CO Ltd
Original Assignee
KUNSHAN GUOJI ELECTRONICS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KUNSHAN GUOJI ELECTRONICS CO Ltd filed Critical KUNSHAN GUOJI ELECTRONICS CO Ltd
Priority to CN201510789145.9A priority Critical patent/CN105424087B/en
Publication of CN105424087A publication Critical patent/CN105424087A/en
Application granted granted Critical
Publication of CN105424087B publication Critical patent/CN105424087B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Making Paper Articles (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a carton quality inspection and detection method comprising the steps of carton printing, patch prefabricating, carton sampling, shape detection, slice cutting, gap filling, slice shape and position test, slice performance test and data processing. Slice marking lines are printed on all cartons, cartons are selected through sampling, and slice sampling is carried out at the marking lines. The quality, thickness, compressive strength and impact strength of slices are tested, and the quality and performance of all the cartons are judged through data processing. The quality of cartons is measured and detected in a simple and practical method. By adopting the method, the quality of cartons can still be effectively inspected and controlled under the condition that there is neither bursting strength test equipment nor drop test equipment in the factory.

Description

A kind of carton quality inspection detection method
Technical field
The present invention relates to a kind of inspection technical equipment field, particularly a kind of carton quality inspection detection method.
Background technology
Modal product external packaging is carton, by carton to various packing of product range of application widely; Therefore numerous carton manufacturing plant and carton are become for the test of the quality and performance of carton and use one of enterprise regular inspection work; Usual use enterprise needs to carry out quality test to carton of stocking up, and the important indicator weighing carton quality comprises: collapse strength (or ultimate pressure capacity ability) test, anti-static pressure ability, drop test, dimension measurement etc.
In prior art, the factory of carton and use enterprise all need to use special inspecting equipment to the test of carton collapse strength, anti-static pressure ability, drop test, and by an overall carton, index is tested, its shortcoming is: be first that patent equipment involves great expense, belong to versatility checkout equipment, be not suitable for the carton testing requirement of different size; Next is in carton testing process, and after carrying out destructive testing to carton, namely carton is scrapped, and cannot reuse, and regular detection can cause a large amount of wastes of carton; Some test again, as collapse strength, can only the equipment aptitude test in laboratory, and need equipment and technician's aptitude test of specialty, in practical application, most (90%) factory does not all have this equipment, namely this test is blank, and therefore can not ensure the carton quality purchased, test can cause tested carton to be scrapped; And for drop test, impracticable just receiving inspection, often just purchased in practical application into carton, the product that production line is not also cased, does not have the actual vanning of product like this, can not test, and tests to cause tested carton to be scrapped yet; Only can only carry out measurement inspection with ruler or tape measure to carton physical dimension for dimension measurement, carton material can not be judged.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of carton quality inspection detection method, for deficiency of the prior art, adopt in carton manufacture process, all cartons are printed out section tag line, chooses carton by sampling, and in the section sampling of tag line place; Tested by the quality to section, thickness, resistance to compression impact strength, and by data processing, judge quality and the performance of overall carton.
For achieving the above object, technical scheme of the present invention is as follows: a kind of carton quality inspection detection method, comprises carton printing, prefabricated sticking patch, carton sampling, profile measurement, section cut, fill up otch, the test of section morpheme, chip property test, data processing; It is characterized in that:
1, described carton is printed, and on carton, section tag line is printed out in fixed position, and described carton comprises left positive mark, the upper left wing, the lower-left wing, right positive mark, the upper right wing, the bottom right wing, left side mark, right side mark, side mark upper limb, side mark bottom wing, edge sealing; The edge of the side mark upper limb of described carton prints out section tag line, and described section tag line is square, sampling of cutting into slices herein during for sampling; Described carton is synthetic into casing by edge sealing;
2, prefabricated sticking patch, according to carton quantity in, by carton, manufacturing firm produces sticking patch in advance, and with carton synchronized transmission of stocking up; The material of described sticking patch, size, thickness are all identical with the material of section, size, thickness, described sticking patch is for covering the sampling breach of section, and after sampling carton cuts section, sampling indentation, there uses sticking patch to cover, sampling carton is regained one's integrity, and normally uses;
3, carton sampling, according to total quantity in of carton, in accordance with quality inspection sampling prescription, extracts the sample carton of carton as carton inspection of quantification;
4, profile measurement, carries out profile measurement to the sample carton that step 3 extracts, and detects the physical dimension of sample carton, thickness, bending and otch situation according to carton standard; Record data are for subsequent use;
5, section cuts, the sample carton that selecting step 3 extracts, the tag line place on the side mark upper limb of described carton, cuts out section, and reference numeral mark is carried out in described section according to section tag line, for subsequent use;
6, fill up otch, the sticking patch in selecting step 2, by bonding or adhesive tape, sticking patch is covered described sampling indentation, there, fill up intact sampling carton by sticking patch, can normally use;
7, morpheme of cutting into slices test, the section that selecting step 5 cuts out, carries out Shape correction to section, guarantees that all sections have identical size and neat edge; High precision slide calliper rule are used to measure the physical dimension of cutting into slices, thickness, and record physical dimension data; The quality of high precision balance to section is used to weigh, and the qualitative data of record section; The face of wearing of described section is disposed with appearance facial tissue, corrugated paper B, sandwich paper, corrugated paper A and inside surface paper, the thickness of the external surperficial paper of measurer, sandwich paper and inside surface paper is used to measure, the stupefied width of corrugated paper A and corrugated paper B, stupefied height and stupefied thickness are measured, and record test data; Test data is for subsequent use;
8, chip property test, because the size of section is little, and size is consistent, uses miniature shock-testing machine, tests the impact strength of breaking of section, and the collapse strength data of record section; Static mini test machine is used to test the horizontal and vertical anti-static pressure ability that face is worn in section, and the horizontal and vertical anti-static pressure data of record section; Test data is for subsequent use;
9, data processing, arranges the section test data in step 4, step 7 and step 8, according to section physical dimension, thickness data, compares, judge that whether the profile of carton, thickness is qualified with the design standards of carton and tolerance; According to the section test data in step 7, compare with the carton test stone table embodiment provided in Fig. 4, judge that whether the quality of carton, thickness is qualified; According to the test data in step 8, converted by slice of data and carton overall collapse strength, fall strength of briquette and anti-static pressure ability standard value, determine that whether the performance index of sample carton are qualified.
Principle of work of the present invention is: the morpheme of carton detects and easily realizes, in the Performance Detection of carton, collapse strength test and drop test are all the test events of inspection carton material, by cutting carton paperboard, obtain section, and by testing the quality of cutting into slices and performance, and adopt kind of a simple and practical standard conversion method, obtain the performance condition of overall carton; Cut the section of carton one small pieces, and claim its qualitative data, and judge the material of carton; Because in paper of the same area, different quality represents different material grades, material standard (grade) the just corresponding some strength standard (grade) that carton is certain; The quality versus of the carton the strength grade finally quality of alleged small pieces and factory purchased, if quality is in critical field, then carton is qualified; Dimension measurement, first measures the physical dimension of carton, then increases the gauge measuring carton paperboard with slide calliper rule, and the thickness calibration with reference to carton paperboard can conveniently be decision making; By the carton after the test of this Simple And Practical method, after surgical repair, do not need to scrap, still can make for packaging product.
By technique scheme, the beneficial effect of technical solution of the present invention is: adopt in carton manufacture process, all cartons are printed out section tag line, chooses carton by sampling, and in the section sampling of tag line place; Tested by the quality to section, thickness, resistance to compression impact strength, and by data processing, judge quality and the performance of overall carton; Measure inspection carton quality by the method for Simple And Practical, solve factory's crack-free strength test equipment and drop test equipment, still can do effective inspection and management and control to carton quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of carton quality inspection detection method carton schematic perspective view disclosed in the embodiment of the present invention;
Fig. 2 is a kind of carton quality inspection detection method carton expansion schematic diagram disclosed in the embodiment of the present invention;
Fig. 3 is a kind of carton quality inspection detection method carton sectional schematic diagram disclosed in the embodiment of the present invention;
Fig. 4 is a kind of carton quality inspection detection method standard control schematic diagram disclosed in the embodiment of the present invention;
Fig. 5 is a kind of carton quality inspection detection method testing process schematic diagram disclosed in the embodiment of the present invention.
Numeral and the corresponding component title represented by letter in figure:
1. the right positive mark of the left positive wing 3. lower-left, the mark 2. upper left wing 4.
5. mark on the right side of mark 8. on the left of the upper right wing 6. bottom right wing 7.
9. side mark upper limb 10. side mark bottom wing 11. edge sealing 12. is cut into slices tag line
13. appearance facial tissue 14. corrugated paper 15. sandwich paper 16. inside surface paper
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
According to Fig. 1 to Fig. 5, the invention provides a kind of carton quality inspection detection method, comprise carton printing, prefabricated sticking patch, carton sampling, profile measurement, section cut, fill up otch, the test of section morpheme, chip property test, data processing; It is characterized in that:
1, described carton is printed, on carton, section tag line is printed out in fixed position, and described carton comprises left positive mark 1, the upper left wing 2, the lower-left wing 3, right positive mark 4, the upper right wing 5, the bottom right wing 6, left side mark 7, right side mark 8, side mark upper limb 9, side mark bottom wing 10, edge sealing 11; The edge of the side mark upper limb 9 of described carton prints out section tag line 12, and described section tag line 12 is square, sampling of cutting into slices herein during for sampling; Described carton is synthetic into casing by edge sealing 11;
2, prefabricated sticking patch, according to carton quantity in, by carton, manufacturing firm produces sticking patch in advance, and with carton synchronized transmission; The material of described sticking patch, size, thickness are all identical with the material of section, size, thickness, described sticking patch is for covering the sampling breach of section, and after sampling carton cuts section, sampling indentation, there uses sticking patch to cover, sampling carton is regained one's integrity, and normally uses;
3, carton sampling, according to total quantity in of carton, in accordance with quality inspection sampling prescription, extracts the sample carton of carton as carton inspection of quantification;
4, profile measurement, carries out profile measurement to the sample carton that step 3 extracts, and detects the physical dimension of sample carton, thickness, bending and otch situation according to carton standard; Record data are for subsequent use;
5, section cuts, the sample carton that selecting step 3 extracts, the tag line place on the side mark upper limb of described carton, cuts out section, and reference numeral mark is carried out in described section according to section tag line, for subsequent use;
6, fill up otch, the sticking patch in selecting step 2, by bonding or adhesive tape, sticking patch is covered described sampling indentation, there, fill up intact sampling carton by sticking patch, can normally use;
7, morpheme of cutting into slices test, the section that selecting step 5 cuts out, carries out Shape correction to section, guarantees that all sections have identical size and neat edge; High precision slide calliper rule are used to measure the physical dimension of cutting into slices, thickness, and record physical dimension data; The quality of high precision balance to section is used to weigh, and the qualitative data of record section; The face of wearing of described section is disposed with appearance facial tissue 13, corrugated paper B, sandwich paper 15, corrugated paper A and inside surface paper 16, the thickness of the external surperficial paper of measurer, sandwich paper 15 and inside surface paper 13 is used to measure, the stupefied width of corrugated paper 14A and corrugated paper 14B, stupefied height are measured, and record test data; Test data is for subsequent use;
8, chip property test, because the size of section is little, and size is consistent, uses miniature shock-testing machine, tests the impact strength of breaking of section, and the collapse strength data of record section; Static mini test machine is used to test the horizontal and vertical anti-static pressure ability that face is worn in section, and the horizontal and vertical anti-static pressure data of record section; Test data is for subsequent use;
9, data processing, arranges the section test data in step 4, step 7 and step 8, according to section physical dimension, thickness data, compares, judge that whether the profile of carton, thickness is qualified with the design standards of carton and tolerance; According to the section test data in step 7, compare with the carton test stone table embodiment provided in Fig. 4, judge that whether the quality of carton, thickness is qualified; According to the test data in step 8, converted by slice of data and carton overall collapse strength, fall strength of briquette and anti-static pressure ability standard value, determine that whether the performance index of sample carton are qualified.
Specific embodiment of the invention operation steps is: as Fig. 2, and printing section tag line on carton side mark upper limb inside surface, described section tag line is of a size of: the square frame of 100x100mm, and is printed with " K=K (A), 8.0 ± 0.6g/100cm in square frame 2" content; 1, measure the physical dimension of carton: long (L), wide (W), high (H), the wing is high; 2, require that carton supplier makes by the mode of Fig. 2 and prints carton, particularly print in the position of the inside surface of carton side mark upper limb: the frame line of 100x100 and " K=K (A), 8.0 ± 0.6g/100cm 2" content; When product guarantor person checks, print of cutting into slices under printing frame line shearing, then this section is carried out shaping, weighs, measured area; By sticking patch, the breach of this section place is recovered carton original position; Joint sealing after packaging product, first seals side mark upper limb; Finally seal up the positive mark upper limb of carton, packaging completes, and section part has no effect to carton outward appearance; The thickness of carton paperboard is measured with slide calliper rule; Collapse strength test and horizontal and longitudinal anti-static pressure test are carried out to section; By the test stone table of test data and carton; Collapse strength and anti-isostatic pressing strength table carry out contrasting, judging; The quality of carton section must conform to " the test stone table of carton " Plays mass value, and broken collapse strength and anti-isostatic pressing strength all need the value that reaches or be above standard, then carton material is qualified; The physical dimension of comprehensive carton, thickness, strength test results and standard meet, then carton totally judge qualified.
By above-mentioned specific embodiment, the invention has the beneficial effects as follows: adopt in carton manufacture process, all cartons are printed out section tag line, choose carton by sampling, and in the section sampling of tag line place; Tested by the quality to section, thickness, resistance to compression impact strength, and by data processing, judge quality and the performance of overall carton; Measure inspection carton quality by the method for Simple And Practical, solve factory's crack-free strength test equipment and drop test equipment, still can do effective inspection and management and control to carton quality.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (1)

1. a carton quality inspection detection method, is characterized in that, comprises carton printing, prefabricated sticking patch, carton sampling, profile measurement, section cut, fill up otch, the test of section morpheme, chip property test, data processing;
1.1, described carton is printed, and on carton, section tag line is printed out in fixed position, and described carton comprises left positive mark, the upper left wing, the lower-left wing, right positive mark, the upper right wing, the bottom right wing, left side mark, right side mark, side mark upper limb, side mark bottom wing, edge sealing; The edge of the side mark upper limb of described carton prints out section tag line, and described section tag line is square, sampling of cutting into slices herein during for sampling; Described carton is synthetic into casing by edge sealing;
1.2, prefabricated sticking patch, according to carton quantity in, by carton, manufacturing firm produces sticking patch in advance, and with carton synchronized transmission of stocking up; The material of described sticking patch, size, thickness are all identical with the material of section, size, thickness, described sticking patch is for covering the sampling breach of section, and after sampling carton cuts section, sampling indentation, there uses sticking patch to cover, sampling carton is regained one's integrity, and normally uses;
1.3, carton sampling, according to total quantity in of carton, in accordance with quality inspection sampling prescription, extracts the sample carton of carton as carton inspection of quantification;
1.4, profile measurement, carries out profile measurement to the sample carton that step 3 extracts, and detects the physical dimension of sample carton, thickness, bending and otch situation according to carton standard; Record data are for subsequent use;
1.5, section cuts, the sample carton that selecting step 3 extracts, the tag line place on the side mark upper limb of described carton, cuts out section, and reference numeral mark is carried out in described section according to section tag line, for subsequent use;
1.6, fill up otch, the sticking patch in selecting step 2, by bonding or adhesive tape, sticking patch is covered described sampling indentation, there, fill up intact sampling carton by sticking patch, can normally use;
1.7, morpheme of cutting into slices test, the section that selecting step 5 cuts out, carries out Shape correction to section, guarantees that all sections have identical size and neat edge; High precision slide calliper rule are used to measure the physical dimension of cutting into slices, thickness, and record physical dimension data; The quality of high precision balance to section is used to weigh, and the qualitative data of record section; The face of wearing of described section is disposed with appearance facial tissue, corrugated paper B, sandwich paper, corrugated paper A and inside surface paper, the thickness of the external surperficial paper of measurer, sandwich paper and inside surface paper is used to measure, the stupefied width of corrugated paper A and corrugated paper B, stupefied height and stupefied thickness are measured, and record test data; Test data is for subsequent use;
1.8, chip property test, because the size of section is little, and size is consistent, uses miniature shock-testing machine, tests the impact strength of breaking of section, and the collapse strength data of record section; Static mini test machine is used to test the horizontal and vertical anti-static pressure ability that face is worn in section, and the horizontal and vertical anti-static pressure data of record section; Test data is for subsequent use;
1.9, data processing, arranges the section test data in step 4, step 7 and step 8, according to section physical dimension, thickness data, compares, judge that whether the profile of carton, thickness is qualified with the design standards of carton and tolerance; According to the section test data in step 7, compare with the carton test stone table embodiment provided in Fig. 4, judge that whether the quality of carton, thickness is qualified; According to the test data in step 8, converted by slice of data and carton overall collapse strength, fall strength of briquette and anti-static pressure ability standard value, determine that whether the performance index of sample carton are qualified.
CN201510789145.9A 2015-11-16 2015-11-16 A kind of carton quality inspection detection method Active CN105424087B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510789145.9A CN105424087B (en) 2015-11-16 2015-11-16 A kind of carton quality inspection detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510789145.9A CN105424087B (en) 2015-11-16 2015-11-16 A kind of carton quality inspection detection method

Publications (2)

Publication Number Publication Date
CN105424087A true CN105424087A (en) 2016-03-23
CN105424087B CN105424087B (en) 2017-08-25

Family

ID=55502453

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510789145.9A Active CN105424087B (en) 2015-11-16 2015-11-16 A kind of carton quality inspection detection method

Country Status (1)

Country Link
CN (1) CN105424087B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111664922A (en) * 2020-06-16 2020-09-15 肇庆市汇嘉纸品包装有限公司 Carton and paperboard quality detection system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102890025A (en) * 2012-10-23 2013-01-23 上海出入境检验检疫局工业品与原材料检测技术中心 Standard sample preparing device for detecting corrugated board
CN102926289A (en) * 2012-11-08 2013-02-13 龙利得包装印刷(上海)有限公司 Corrugated paper and manufacturing method thereof
CN104999504A (en) * 2015-05-29 2015-10-28 深圳市慧大成智能科技有限公司 Size measurement method of corrugated board and paper separation pressure line control method and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102890025A (en) * 2012-10-23 2013-01-23 上海出入境检验检疫局工业品与原材料检测技术中心 Standard sample preparing device for detecting corrugated board
CN102926289A (en) * 2012-11-08 2013-02-13 龙利得包装印刷(上海)有限公司 Corrugated paper and manufacturing method thereof
CN104999504A (en) * 2015-05-29 2015-10-28 深圳市慧大成智能科技有限公司 Size measurement method of corrugated board and paper separation pressure line control method and system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
康启来: "《啤酒纸箱生产质量的检验和控制》", 《ANALYSIS AND EXAMINATION》 *
康启来: "《瓦楞纸箱及其纸板的检测和质量控制》", 《湖南包装》 *
田永辉: "《瓦楞纸箱的质量检测》", 《质量与标准》 *
黄湘冰: "《瓦楞纸箱产品质量检测》", 《包装科技》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111664922A (en) * 2020-06-16 2020-09-15 肇庆市汇嘉纸品包装有限公司 Carton and paperboard quality detection system

Also Published As

Publication number Publication date
CN105424087B (en) 2017-08-25

Similar Documents

Publication Publication Date Title
JP6952072B2 (en) Corrugated board testing machine, blank and corrugated blank production line
CN105674885A (en) Sheet material detection method
MX2008007494A (en) Apparatus and method for determining whether an envelope is in or out of specification.
Fedorko et al. Extension of inner structures of textile rubber conveyor belt–Failure analysis
CN111157157B (en) Cold-rolled sheet residual stress prediction and measurement method
CN105424087A (en) Carton quality inspection and detection method
CN202630840U (en) Online detection test gauge for end-surface-flared bend pipe parts
CN105372103A (en) Composite test specimen
CN115201444A (en) Aluminum substrate defect detection screening system and method
CN202432959U (en) Multifunctional disc scissor blade detection rack
Standard et al. Plastics—Determination of tensile properties—
CN204514252U (en) The gauge of counterbore angle
CN104977071A (en) Lateral gram weight determining method of paper machine
CN115032118A (en) Method for evaluating moisture regain resistance of paper sample
CN112388732A (en) Die cutting method convenient to detect
CN203824886U (en) Inspection tool for detecting size of pinhole in machined surface of aluminum alloy casting
CN207515697U (en) Bow warping degree verifying attachment
Jiao et al. Study on Pressure Testing Method of Die-Cutting Machine Based on Micro-capsule and Image Sensor
CN107933050A (en) A kind of composite material unidirectional laminate angle accuracy control method
CN207232320U (en) Semiconductor test gauge
CN213932268U (en) Backlight module alignment inspection device
CN104457648B (en) The acquisition methods of the Tolerance of Degree of position of the size and measurement pin of measurement pin
CN104768329B (en) A kind of preparation method of circuit board
CN215676766U (en) Casting machining surface defect size inspection tool
CN110481057B (en) Composite material gap-dense sample, preparation device and preparation method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant