SJ 20782-2000 General specification for gas-filled rectifier tubes

This standard specifies the general requirements, quality assurance regulations, delivery preparation, etc. of military gas-filled rectifier tubes (hereinafter referred to as rectifier tubes or products). This standard applies to rectifier tubes used for high-voltage rectification in military equipment. SJ 20782-2000 General Specification for Gas-filled Rectifier Tubes SJ20782-2000 Standard download decompression password: www.bzxz.net

Military standard FL5960 for electronics industry of the People's Republic of China
SJ20782—2000
General specification for gas-filled rectifier tubes2000-10-20 Issued
Implementation on 2000-10-20
Approved by the Ministry of Information Industry of the People's Republic of China Military standard FL5960 for electronics industry of the People's Republic of China
General specification for gas-filled rectifier tubes1 Scope
11 Topic Content
SJ20782—2000
This specification specifies the general requirements, quality assurance provisions, delivery preparation, etc. for military gas-filled rectifier tubes (hereinafter referred to as rectifier tubes or products).
1.2 Scope of application
This specification applies to rectifier tubes used as high-voltage rectifiers in military equipment. 1.3 Classification
The classification of rectifier tubes shall comply with the provisions of SJ/T10732-97 (Nomenclature of electron tube models). 2 Referenced documents
GB3213-82 Test methods for thyristors and gas-filled rectifier tubes GJB179A-96 Counting sampling inspection procedures and tables GJB360A-96 Test methods for electronic and electrical components GJB616-88 Test methods for electron tubes
GJB921-90 General specification for electron tube packaging
SJ/T10732-96 Nomenclature of electron tube models 3 Requirements
3.1 Detailed specifications
The individual requirements of each type of rectifier tube shall comply with the requirements of this specification and detailed specifications. When the requirements of this specification are inconsistent with those of the detailed specification, the detailed specification shall prevail. 3.2 Qualification appraisal
The rectifier tubes submitted in accordance with the provisions of this specification shall be rectifier tubes that have been qualified or approved for finalization. 3.3 Reliability and life
3.3.1 If the performance and design requirements specified in this specification are not sufficient to ensure the inherent reliability required of the rectifier tube, the reliability requirements of "failure rate (A)" or "mean time between failures (MIBF)" shall be specifically specified in the detailed specification.
3.3.2 The life (number of working hours) and life standard of the rectifier tube shall comply with the requirements of the detailed specification. 3.4 First article
Issued by the Ministry of Information Industry of the People's Republic of China on October 20, 2000 NIKAoNrkAca
Implementation on October 20, 2000
SJ 20782—2000
When specified in the contract and order, first article inspection shall be carried out. 3.5 Materials
a. The materials used for rectifiers shall comply with the provisions of the relevant standards and design documents. b. The materials used to manufacture rectifiers shall not be harmful to the health of personnel. If harmful substances are involved. Safety protection measures shall be specified in the detailed specifications.
3.6 Structural design
Unless otherwise specified, the structural design features of the rectifier shall be described in the detailed specifications. a. Main structure:
b. Installation position;
c. Transmission Input and output connection method;
d. Others.
3.7 Standards
The parts used to form the rectifier tube should use standard parts as much as possible: to improve the standardization coefficient of the rectifier tube design.
3.8 Performance characteristics
3.8.1 Mechanical properties
The mechanical properties should be firm and reliable.
a. Terminal strength (see 4.8.5.1);
b, vibration (see 4.8.5.2);
c, weldability (see 4.8.5.4);
d. Shock (see 4.8.5.3).
3.8.2 Electrical properties
Unless otherwise specified, the following relevant parameters shall comply with the provisions of the detailed specifications (4.8.4). Ignition voltage:
Tube voltage drop;
C. Reverse current;
d. Reverse peak voltage:
e, forward current.
3.8.3 No.1. Operating defects (4.8.3)
The rectifier tube should not have defects such as short circuit, open circuit and drowning. 3.9 Environmental requirements
3.9.1 Unless otherwise specified, the following environmental tests shall comply with the requirements of the detailed specifications: low pressure (see 4.8.6.4)
b. High temperature test under non-operating state (see 4.8.6.1) c. Low temperature test under non-operating state (see 4.8.6.2): ​​d. Overflow impact test under non-operating state (see 4.8.6.3). 3.9.2 After mechanical and environmental tests, the following items shall comply with the requirements of the detailed specifications: a. Ignition voltage:
b. Tube voltage drop:
c. Reverse peak current:
d, forward current:
e. Appearance inspection.
3.10 Appearance drawing, dimensions
SJ 20782---2000
The appearance drawing and dimensions of the rectifier tube shall comply with the provisions of the detailed specifications. 3.11 Weight
The weight of the rectifier tube shall comply with the provisions of the detailed specifications. 3.12 Marking
Unless otherwise specified, each rectifier tube shall be firmly and clearly attached with the following markings. If the marking area is insufficient, as many markings as possible shall be attached in the following order.
a Identification of the contractor (trademark or code):
b. Model:
Manufacturing year or number:
Military standard "》":
Certification mark A:
f. Others.
3.13 Appearance quality
The appearance quality of the rectifier tube shall comply with the provisions of Appendix A (supplement) and detailed specifications. 4 Quality assurance provisions
4.1 Inspection responsibility
Unless otherwise specified, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the ordering party and the superior appraisal agency or its authorized unit have the right to inspect any inspection item described in the specification. 4. 1. 1 Qualifications
All products must comply with all requirements of Chapter 3 or Chapter 5 of the specification. The inspections specified in this specification shall become an integral part of the contractor's entire inspection system or quality improvement program. If the contract includes inspection requirements not specified in this specification, the contractor shall also ensure that the submitted products meet the requirements. 4.2 Inspection classification
a. Initial inspection;
b. Identification inspection (type finalization inspection)
c. Quality consistency inspection.
4.3 Inspection conditions
4.3.1 Environmental conditions
Unless otherwise specified, all inspections shall be conducted at a temperature of 15°C～35°C, relative humidity 45%～75℃, standard atmospheric pressure of 86kPa~106kPa. 4.3.21. Operating parameters
When testing rectifier tubes, additional operating parameters are specified in the detailed specifications. 4.4 First article inspection
a. If the first article inspection requirement is mentioned in the contract or order, the first article inspection shall be carried out. The inspection rules, inspection items, inspection sequence, number of rectifier tubes to be inspected, and the number of qualified judgments shall be in the contract. Specified in the contract or order: b. If the first article inspection is specified in the contract or order, it is generally replaced by the final inspection (see Article 4.5). 4.5 Appraisal Inspection (Final Inspection)
Appraisal inspection is to evaluate whether the quality of the rectifier tube meets the requirements of the ordering party and whether the contractor has the ability and means to produce on a batch basis.
4.5.1 Maintenance of Appraisal Qualification
a. In order to maintain the appraisal approval, the contractor shall submit an implementation report to the appraisal agency every 24 months from the date of the appraisal approval. If the report is not submitted within 30 days after the deadline, the appraisal agency may revoke the appraisal of the rectifier. b. The ordering party shall propose to re-conduct the identification and inspection. c. The contractor shall provide the qualification certification.
4.5.2 Identification and inspection
Setting inspection See Table 1.
Inspection items
Appearance quality
Dimension inspection
Non-working defect inspection
Electrical properties
Mechanical properties
Environmental requirements
Reliability life
Required article number
Inspection or test method article number
Note: Mechanical, environmental and life tests can be carried out with samples that do not affect their test results. 4.6 Quality consistency inspection
4.6.1 Structural similarity
Sampling size
Number of unqualified products allowed
When several types of rectifier tubes (which may be of the same detailed specification) with basically the same design, material and process and qualified by identification are produced simultaneously or cross-continuously, the inspection of their common performance can be sampled from one type of tube, and the results can replace the inspection of other tube types. Unless otherwise specified, the common inspection items that can be adopted are as follows: Overall size:
Strength of electrode lead terminal:
Weldability:
Marking:
Steady-state damp heat:
Vibration test;
Sampling plan
4.6.2.1 Batch inspection
SJ20782—2000
Batch inspection is a normal sampling plan. Except for the provisions of this specification and detailed specifications, other inspection requirements shall be in accordance with the provisions of GJB179A.
4.6.2.1.1 Composition of the batch
Unless otherwise specified, the cycle of the "inspection batch" is three months, and all rectifiers of the same process, same material, and same model (except for similar structures) produced under basically the same conditions and submitted for inspection. 4.6.2.1.2 Inspection grouping and requirements
The quality consistency inspection is divided into group A, B, C, and D inspections. Group A is used to inspect the characteristics that are most susceptible to changes in production technology or production skills; Group B inspection is used to inspect those characteristics that are more affected by parts or equipment; Group C and D inspections are periodic tests: The inspection requirements of each group should comply with the provisions of Table 2. Table 2
Inspection grouping
A1 grouping
A2 grouping
A3 grouping
B1 grouping
B2 grouping
C1 grouping
C2 grouping
C3 grouping
4.7 Packaging inspection
Inspection or test
Visual inspection
Non-working defect (if necessary)
Electrical properties
Electrical properties (if necessary)
Electrical properties (if necessary)
Mechanical testwww.bzxz.net
Environmental test
N=2 P=6
Life test or reliability test
N-2 P-12
Inspection level
See Appendix A
Inspection requirements, inspection items, sampling plan and acceptance criteria and inspection methods shall be specified in the detailed specification. 4.8 Inspection methods
4.8.1 Appearance
Appearance inspection shall be carried out in non-operating state and normal lighting conditions, using a measuring tool or special tool. 4.8.2 Dimensions
Dimensional inspection shall be carried out in non-operating state and normal lighting conditions, using a measuring tool or special tool. 4.8.3 Non-operating defects
The inspection method for non-operating defects shall be specified in the detailed specification. 4.8.4 Electrical properties
Electrical properties shall be carried out in accordance with the test methods specified in the detailed specification and GB3213. 4.8.5 Mechanical test
4.8.5.1 Terminal strength
See Method 211 in G3B360A
4.8.5.2 Vibration
The vibration test method shall be carried out in accordance with Method 1008 in GJB616. The frequency range, the moving Pa value and the related test conditions shall be specified in the detailed specification.
4.8.5.3 Impact surface
SJ 20782-2000
The impact test shall be carried out in accordance with Method 1014 in GJB616. The test conditions shall be non-operating state. The impact waveform shall be positive nuclear wave. The duration, peak acceleration and related conditions shall be specified in the detailed specification. 4.9.5.4 Weldability
The weldability shall be tested in accordance with Method 208 in GJB360A. 4.8.6 Environmental test
4.8.6.1 High temperature
Temperature shall be tested in accordance with Method 1018 of GJB616, the recommended test temperature is 200°C, and the test time shall be as specified in the detailed specification.
4.8.6.2 Low temperature
Low temperature shall be tested in accordance with Method 1018 of GJB616, the recommended test temperature is -55C, and the test time shall be as specified in the detailed specification.
4.8.6.3 Temperature shock
Temperature shock shall be tested in accordance with Method 1007 of GJB616, the temperature and time shall be as specified in the detailed specification. 4.8.6.4 Wet heat
Steady-state condensation heat shall be tested in accordance with Method 1005 of GJB616, and the test conditions shall be as specified in the detailed specification. 4.8.6.5 Low pressure
Low pressure shall be tested in accordance with GJB616 Method 1001, and the pressure and holding time shall be specified in the detailed specification. 4.8.7 Reliability or life
The life test method and reliability test method shall be specified in the detailed specification. 4.8.8 Marking durability
GJB616 Method 2002.
4.8. 9 Others
Other tests and test methods specified in the detailed specification. 4.9 Other related requirements
4.9.1 Guaranteed service life
When the guaranteed service life is specified in the detailed specification or contract, the rectifier tube may not be subjected to the life test, and the guaranteed service life hours shall be specified in the detailed specification.
4.9.2 Storage life
When necessary, the storage life shall be specified in the detailed specification or contract. The storage life is measured in years and is calculated from the end of production. 4.9.3 Delayed delivery
a After the rectifier tubes have passed the inspection, they have been stored in the manufacturer for 6 months but not more than 12 months. Before delivery, they should be re-inspected according to the "non-defective" item in Group A (see 3.8.3). If they are unqualified, the batch represented by the unqualified products shall be re-inspected for Group A.
b. After the rectifier tubes have passed the inspection, they have been stored in the manufacturer for 12 months or more. Before delivery, they should be re-inspected for Group A. If they are unqualified, the batch represented by the unqualified products shall be re-inspected batch by batch. 6
5 Delivery preparation
5.1 Packaging
5.1.1 Packaging requirements
SJ20782--2000
Unless otherwise specified, the packaging requirements shall be selected according to the relevant provisions in Chapter 3 of GJB921 and specified in the detailed specifications. 5.1.2 Packing Contents
Unless otherwise specified, the packing box shall be accompanied by a certificate of conformity, packing list and instructions for use. 5.1.3 Packing Box Labels
Unless otherwise specified, the labels on the packing box shall comply with the provisions of Article 3.4 of GIB921. 5.2 Transportation
Unless otherwise specified, the packing box containing the rectifier tube may be transported by any transport 1. However, it shall be avoided from being damaged or mechanically impacted during transportation.
5.3 Storage
Unless otherwise specified, the rectifier tubes shall be purchased and stored at a temperature of -35"C ~ 40°C, relative humidity not exceeding 80%, ventilation and no corrosive gas.
6 Notes
6.1 Intended use
The intended use of the rectifier tubes shall be stated in the detailed specifications. 6.2 Contents of ordering documents
The contract shall include the following contents:
a. Model and name:
b. Code, number and name of the detailed specification; c. Quantity:
d. Others.
6.3 Definitions
The definitions involved in this specification can be found in the relevant standards in Chapter 2 "References", and are supplemented as follows: a. Absolute ratingsabsoluteratings
The "maximum value" or "minimum value" based on the absolute value system, that is, the maximum and minimum values ​​without considering the stop value. b. Control defectcontrol Defect
Controlled defect refers to the deviation from the applicable range of good quality, but the deviation does not affect the performance, assembly, maintenance and life of the rectifier.
c. Imoperative defects
Imoperative defects refer to short circuit, open circuit and air leakage of the rectifier. 6.4 Precautions for use
The rectifier is used under the operating conditions specified in the detailed specifications. Its characteristics can be guaranteed when it is used without exceeding the absolute rated value.
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A1 General principles
SJ20782—20 00
Appendix A
Appearance Inspection Specification
(Supplement)
This appendix specifies the defect types and identification criteria for the appearance inspection of rectifier tubes, which is applicable to both 100% inspection and sample inspection.
Unless otherwise specified, the appearance inspection shall be based on the inspection level I of GJB179A, and its AQL value shall be as shown in Table A1. Rectifier tubes with controlled defects in qualified batches shall not be rejected. Table A1
Defect Category
Serious Defect
Minor Defect
Controlled Defect
A2 Defect
A2.1 Tube shell
A2.1.1 Bubbles
Broken bubbles on the surface equal to or greater than 0.60mmA2.1.2 Cracks
Any cracks
A2.1.3 Scratches
The total length of the scratches on the glass is greater than 1/2 of the height of the entire tubeA2.2 Lead terminals
A2.2.1 Tube needles
A2.3 Active debris in the tube
A2.3.1 Non-conductive debris
a. The maximum size of the debris is greater than 1.60mm
b. More than 3 pieces of debris with the maximum size less than 0.40mmA2.3.2 Conductive debris
Maximum size of debris is 0.40mm
A2.4 Sealing
Radial cracks at the sealing between the needle and the glass are greater than 0.1mma.
1.0 (comprehensive defect)
2.5 (comprehensive defect)
6.5 (single defect)
Serious defect
Serious defect
Minor defect||t t||Control defects
Minor defects
Minor defects
Serious defects
Serious defects
b. The depth of the axial crack at the seal between the pin and the glass is greater than 1/3 of the length of the seal between the glass and the metal. Serious defects
A2.5 Marking
A2.5.1 The marking is not firm and the position is incorrect
Serious defects
The marking is missing, wrong or unclear
Additional instructions:
SJ 20782--2000
Central Electronics Center
This specification is under the jurisdiction of China Electronics Technology Standardization Institute. This specification was drafted by Yilu City Electronics General Company, and the main drafters of this specification are: Sun Lixin
Jin Wang Junhua.
Project code: B81004.
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Serious defects
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