SJ 20805-2001 General specification for gyromagnetic ferrite materials
Some standard content:
Military standard for the electronics industry of the People's Republic of China FL5971
SJ20805—2001
General specification for gyromagnetic ferrite materials Issued on 2001-12-27
Implemented on 2002-01-01
Approved by the Ministry of Information Industry of the People's Republic of China 1 Scope
Military standard for the electronics industry of the People's Republic of China General specification for gyromagaetic ferrite materials
General specification for gyromagaetic ferrite materials1.1 Subject contentbzxZ.net
SJ20805--2001
This specification specifies the requirements, quality assurance provisions, and delivery preparation for gyromagnetic ferrite materials (hereinafter referred to as materials) used at microwave frequencies.
1.2 Scope of application
This specification applies to gyromagnetic polycrystalline ferrite materials used in microwave ferrite devices. This specification does not apply to gyromagnetic polycrystalline ferrite film materials and gyromagnetic single crystal ferrite materials. 1.3 Classification and naming
1.3.1 Classification
Gyromagnetic ferrite materials are also called microwave ferrite materials, mainly including sphene type (cubic system), garnet type (cubic system) and magnetoplumbite type (hexagonal system) structures. This specification is divided into: small line width materials, internal field materials, high Curie temperature materials and high power materials according to the typical characteristics of the materials. 1.3.2 Brand
The brand naming method is in accordance with the provisions of SJ/T10213-1991 "Ferrite Material Brand and Component Model Naming Method". The symbol "P" is added to the main feature part of the material, which means "high power". 2 References
GB191-2000 Packaging, storage and transportation pictorial marking
GB/T9633—1988 Test method for performance of gyromagnetic materials for microwave frequency applications GJB179A-96 Counting sampling inspection procedures and tables GJB360A-96 Test methods for electronic and electrical components SJ/T10213—1991 Method for naming ferrite material grades and component models 3 Requirements
3.1 Detailed specifications
The requirements for each grade of material shall comply with the provisions of this specification and the corresponding detailed specifications. When the requirements of this specification and the detailed specifications are inconsistent, the detailed specifications shall prevail.
3.2 Qualification appraisal
The materials submitted in accordance with this specification shall be products that have been qualified or approved by the appraisal. Ministry of Information Industry of the People's Republic of China issued KAoNiKAca-200t-12-27
2002-01-01 implementation
3.3 Appearance
SJ20805-2001
The surface of the materials submitted according to this specification shall be clean, free of cracks, loose ferrite particles and small pores visible to the naked eye. 3.4 Chemical composition of materials
The typical chemical composition of the materials submitted according to this specification is given by the detailed specification (see 3.1). 3.5 Specifications and dimensions of materials
The specifications and dimensions of the materials submitted according to this specification shall comply with the provisions (see 3.1). 3.6 Apparent density and mechanical properties of materials (when applicable) The apparent density (Pp) of the materials shall comply with the provisions (see 3.1). If necessary, the typical mechanical properties of the materials can be provided (see 3.1). 3.7 Electromagnetic properties of materials
The electromagnetic properties of gyromagnetic ferrite materials shall comply with the provisions of the detailed specifications (see 3.1). The detailed specification shall select appropriate electromagnetic performance items or add additional items from Table 1 for specification. The test method of the additional items shall be specified in the detailed specification. If necessary, the relationship curve between the typical saturation magnetization intensity M and temperature of the material (M-T curve) can be given. Table 1 Electromagnetic Performance
3.8 Temperature Shock
Item Name
Saturation magnetization intensity M,
Spin magnetic resonance line width AH
Spin wave line width AH
Effective line width ^Hen
Effective Lande factor gert
Complex relative dielectric constant e
Curie temperature Tc
Within the specified temperature range, the error is 10%: At a certain temperature within the specified temperature range, the error is ±5%.
At the specified frequency and temperature, the error is 20%. At the specified frequency and temperature, the error is ±20%. At the specified frequency and temperature, the error is 5%. The error of the absolute value of the complex relative dielectric constant is ±10%; the error of the dielectric loss tangent tan6 is ±10%. After the test sample is tested in accordance with the provisions of 4.7.4, its electrical properties shall comply with the provisions (see 3.1). 3.9 Steady-state damp heat
After the test sample is tested in accordance with the provisions of 4.7.5, its electromagnetic properties shall comply with the provisions (see 3.1). 3.10 Identification marks
The delivered materials shall be marked with necessary methods (see 3.1). 4 Quality assurance provisions
4.1 Inspection responsibilities
Unless otherwise specified in the contract or order, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the ordering party or the superior appraisal agency has the right to inspect any inspection item described in this specification. 4.1.1 Responsibility for Conformity
All products must meet all requirements of Chapter 3 and Chapter 5 of this specification. The inspections specified in this specification shall become an integral part of the contractor's entire inspection system or quality assurance program. If the contract or order includes inspection requirements not specified in this specification, the contractor shall also ensure that the materials submitted for inspection meet the requirements of the contract or order. Quality consistency sampling does not allow the submission of materials that are known to be defective, nor can the ordering party be required to accept defective materials. 4.2 Inspection Classification
The inspection classification specified in this specification is:
a. Identification inspection (see 4.4);
b. Quality consistency inspection (see 4.5);
c. Packaging inspection (see 4.6).
4.3 Inspection Conditions
Unless otherwise specified, all inspections shall be carried out under the standard atmospheric pressure conditions specified in GJB360A. 4.4 Qualification test
Qualification test shall be conducted before the material is put into production. When there are major changes in raw materials or manufacturing processes that may affect the results of qualification test, qualification test shall also be conducted. Qualification test is also used to verify the maintenance of qualification qualification. 4.4.1 Inspection location
Qualification test shall be conducted in an authorized or approved laboratory. 4.4.2 Inspection samples
The samples for qualification test are manufactured by the equipment and processes normally used in production. The shape and nominal size of the samples for testing the mechanical properties of the materials shall comply with the provisions (see 3.1). The shape and nominal size of the samples for testing the electromagnetic properties and apparent density of the materials shall comply with the provisions of GB/T9633. 4.4.3 Inspection
The items, inspection sequence, number of samples to be tested and the number of unqualified products allowed for qualification test shall be in accordance with the provisions of Table 2. Among them, the items for testing the electromagnetic properties of the materials shall be in accordance with the provisions of the detailed specifications (see 3.1). The qualification test shall be carried out by continuously feeding three batches of materials to accept the qualification test specified in Table 2. The quantity of each batch of materials and the number of samples produced in each batch shall comply with the regulations (see 3.1).
KAoNrKAca-
Inspection or test items
Appearance and mechanical inspection
Apparent density pe (when applicable)
Electromagnetic properties
Saturation magnetization M,
Curie temperature Tc
Gyromagnetic resonance line width AH
Spin wave line width AH
Effective line width AHen
Effective Lande factor gerr
Complex relative dielectric constant||tt ||Environmental adaptability
Temperature shock
Steady-state damp heat
SJ20805—2001
Requirement clause number
3.1, 3.3, 3.5,
Test method
Clause number
Number of samples to be tested
Samples for inspection
Number of unqualified products
Note: The samples to be subjected to the environmental adaptability test are selected from the samples that have been subjected to the electromagnetic performance inspection and have passed (see 3.1). 4.4.4 Unqualified determination
If three consecutive batches of tested samples have passed the inspection or test specified in Table 2 (see 3.1), the identification inspection is qualified. If one or more of the inspections or tests exceed the number of unqualified products allowed as specified in Table 2, the identification qualification will not be granted. 4.4.5 Maintenance of qualification
In order to maintain qualification, the contractor shall submit a report including the various tests specified in Table 2 (Qualification Test) to the qualification unit every three years. The test shall be carried out using one sample of each type of product produced during this period. 4.5 Quality consistency test
4.5.1 Composition of inspection lot
An inspection lot consists of all products of the same brand submitted for inspection at the same time. The number of an inspection lot should not exceed the output of one normal production cycle (see 3.1).
4.5.2 Quality consistency inspection
The quality consistency inspection shall be in accordance with GJB179A, a normal sampling plan, the inspection level IL is the general inspection level II, the acceptable quality level AQL is as specified in Table 3, and the inspection items and sequence are as specified in Table 3. 4
Inspection or test items
Apparent density and mechanical properties
Electromagnetic properties
4.5.3 Unqualified
SJ208052001
Requirement clause number
3.1, 3.3, 3.5, 3.10
Test method
Clause number
Acceptable quality level
Use fixed samples, the sample shape
and quantity shall be as specified in the electromagnetic properties
item in the table, and the number of unqualified products is allowed to be 0.
If an inspection batch is rejected, the contractor can remove the unqualified products and re-inspect them. The re-delivered inspection batch should be separated from the normal batch and clearly marked as "re-inspection batch". 4.6 Packaging inspection
The packaging and marking requirements specified in Chapter 5 of this specification shall be inspected by visual inspection. Any transport package that does not meet the requirements of Chapter 5 shall be rejected.
4.7 Inspection method
4.7.1 Appearance and mechanical inspection
The materials shall be inspected in accordance with the provisions of 3.1, 3.3, 3.5 and 3.10 to prove whether their appearance, specifications and markings meet the requirements.
4.7.2 Apparent density
The apparent density Aa shall be measured in accordance with the provisions of Chapter 10 of GB/T9633, and it is allowed to be measured by automatic measuring devices. However, in case of disputes, the method specified in GB/T9633 shall be used for arbitration. 4.7.3 Electromagnetic properties of materials
Electromagnetic properties of materials shall be measured in accordance with the provisions of GB/T9633. Automatic measuring devices are allowed for measurement. However, in case of disputes, the method specified in GB/T9633 shall be used for arbitration. 4.7.3.1 Saturation magnetization intensity M,
shall be measured in accordance with the provisions of Chapter 3 of GB/T9633. 4.7.3.2 Gyromagnetic resonance line width 4H
shall be measured in accordance with the provisions of Chapter 5 of GB/T9633. 4.7.3.3 Spin wave line width AH
shall be measured in accordance with the provisions of Chapter 7 of GB/T9633. 4.7.3.4 Effective line width AHe
shall be measured in accordance with the provisions of Chapter 8 of GB/T9633. 4.7.3.5 Effective Langde factor geff
shall be measured in accordance with the provisions of Chapter 5 of GB/T9633. 4.7.3.6 Complex relative dielectric constant e
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According to the provisions of Chapter 9 of GB/T9633. 4.7.3.7 Curie temperature Tc
SJ20805—2001
Measured by magnetic ring balance or vibrating sample magnetometer. Curie temperature Tc is determined by T curve. 4.7.4 Temperature shock
The sample is tested in accordance with Method 107 of GB360A and the following provisions. Test conditions: A or B:
Measurement after the test: The corresponding electromagnetic parameters shall be measured in accordance with the provisions of 4.7.3 (see 3.1). 4.7.5 Steady-state damp heat
The sample is tested in accordance with Method 103 of GB360A and the following provisions. Test conditions: B
Measurement after the test: The corresponding electromagnetic parameters shall be measured in accordance with the provisions of 4.7.3 (see 3.1). 5 Delivery preparation
5.1 Sealing and packaging
The materials should be cleaned and dried before sealing. When packaging, dry paper pads should be added between each single piece of material and packed in an intermediate packaging box. The gaps in the box should be filled with soft filling materials, and the box should be filled with a certificate of conformity with the seal of the quality inspection department of the contractor. The box should be sealed with a seal or label with the seal of the quality inspection department. The intermediate packaging of the materials should be able to ensure that the materials will not be damaged due to improper packaging during transportation and storage.
The certificate of conformity should be placed in the intermediate packaging box, which should be marked with: a. Detailed specification number:
b. Trademark and name of the contractor:
Material brand and batch number:
d. Quantity:
e. Inspection date:
f. Name or code of the inspector:
g. Seal of the contractor's inspection department.
5.2 Packing
The boxes containing materials should be packed together in the packing box, and the gaps in the box should be filled with shockproof materials. There should be a packing list in the packing box, which should indicate:
The trademark or name of the contractor;
The brand of material:
The number of intermediate packages;
The date of packing;
e. The name or code of the packing personnel.
5.3 Transportation and storage
The materials packed in accordance with Article 5.2 can be transported by any means, but they should be protected from direct rain and snow and mechanical damage. The suitable storage environment temperature for the materials is -40°C to 60°C, the relative humidity is less than 85%, and there is no acid, alkaline or other harmful gas.
SJ20805—2001
5.4 Marking
The "Rain-Proof" sign shall be marked on the outside of the transport packaging box in accordance with the provisions of GB191. 6 Explanations
6.1 Intended Use
The gyromagnetic ferrite materials specified in this specification are intended to be used in military and civilian microwave ferrite devices under specified frequencies and conditions of use, such as RF isolators, RF circulators, and RF phase shifters. Gyromagnetic ferrite materials lack ductility and are not suitable for use as structural parts during design. 6.2 Contents of Ordering Documents
The contract or order form shall state the following: a.
The name and number of this specification;
The name and number of the corresponding detailed specification:
The type and brand of the material;
The quantity of the material (weight or number of pieces):
Special requirements, including requirements for processing, packaging, transportation, etc. Additional notes:
This specification is under the jurisdiction of the Fourth Electronic Research Institute of the Ministry of Information Industry. This specification was drafted by the Ninth Research Institute of the Ministry of Information Industry. The main drafters of this specification are: Liu Jian, Li Kewen, Hou Juzheng, Shi Chengyu, Wang Dongmei. Project code: B92022.
KAONiKAca-3 Spin wave line width AH
shall be in accordance with the provisions of Chapter 7 of GB/T9633. 4.7.3.4 Effective line width AHe
shall be in accordance with the provisions of Chapter 8 of GB/T9633. 4.7.3.5 Effective Lande factor geff
shall be in accordance with the provisions of Chapter 5 of GB/T9633. 4.7.3.6 Complex relative dielectric constant e
-TTKAONiKAca-
shall be in accordance with the provisions of Chapter 9 of GB/T9633. 4.7.3.7 Curie temperature Tc
SJ20805—2001
shall be measured by a magnetic ring balance or a vibrating sample magnetometer. Curie temperature Tc shall be determined by T curve. 4.7.4 Temperature shock
The sample shall be tested in accordance with Method 107 of GB360A and the following provisions. Test conditions: A or B:
Measurement after the test: The corresponding electromagnetic parameters shall be measured according to the provisions of 4.7.3 (see 3.1). 4.7.5 Steady-state damp heat
The sample shall be tested according to Method 103 in GB360A and the following provisions. Test conditions: B
Measurement after the test: The corresponding electromagnetic parameters shall be measured according to the provisions of 4.7.3 (see 3.1). 5 Delivery preparation
5.1 Sealing and packaging
The materials shall be cleaned and dried before sealing. When packaging, dry paper pads shall be added between each single piece of material and packed into an intermediate packaging box. The gaps in the box shall be filled with soft filling materials, and the certificate with the seal of the quality inspection department of the contractor shall be placed in the box. The seal or label with the seal of the quality inspection department shall be affixed to the outside of the box. The intermediate packaging of the material shall be able to ensure that the material will not be damaged due to improper packaging during transportation and storage.
The intermediate packaging box should contain a certificate of conformity, which should indicate: a. Detailed specification number:
b. Trademark and name of the manufacturer:
Material brand and batch number:
dQuantity:
e. Inspection date:
f. Name or code of the inspector:
g. Seal of the inspection department of the manufacturer.
5.2 Packing
The packaging boxes containing materials should be packed into the packaging box, and the gaps in the box should be filled with shockproof materials. There should be a packing list in the packaging box, which should indicate:
Trademark or name of the manufacturer;
Material brand:
Quantity of intermediate packaging;
Packing date;
e. Name or code of the packing person.
5.3 Transportation and storage
The materials packed in accordance with 5.2 can be transported by any means, but they should be protected from direct rain and snow and mechanical damage. The suitable storage environment temperature for the materials is -40°C to 60°C, the relative humidity is less than 85%, and there is no acid, alkaline or other harmful gas.
SJ20805—2001
5.4 Marking
The "Rain-averse" mark should be marked on the outside of the transport packaging box in accordance with the provisions of GB191. 6 Notes
6.1 Intended use
The gyromagnetic ferrite materials specified in this specification are intended for military and civilian microwave ferrite devices under specified frequencies and conditions of use, such as RF isolators, RF circulators, and RF phase shifters. Gyromagnetic ferrite materials lack ductility and are not suitable for use as structural parts in design. 6.2 Contents of order documents
The contract or order form shall state the following contents: a.
Name and number of this specification;
Name and number of corresponding detailed specifications:
Type and brand of materials;
Quantity of materials (weight or number of pieces):
Special requirements, including processing, packaging, transportation and other requirements. Additional notes:
This specification is under the jurisdiction of the Fourth Institute of Electronics of the Ministry of Information Industry. This specification was drafted by the Ninth Institute of the Ministry of Information Industry. The main drafters of this specification: Liu Jian, Li Kewen, Hou Juzheng, Shi Chengyu, Wang Dongmei. Project code: B92022.
KAONiKAca-3 Spin wave line width AH
shall be in accordance with the provisions of Chapter 7 of GB/T9633. 4.7.3.4 Effective line width AHe
shall be in accordance with the provisions of Chapter 8 of GB/T9633. 4.7.3.5 Effective Lande factor geff
shall be in accordance with the provisions of Chapter 5 of GB/T9633. 4.7.3.6 Complex relative dielectric constant e
-TTKAONiKAca-
shall be in accordance with the provisions of Chapter 9 of GB/T9633. 4.7.3.7 Curie temperature Tc
SJ20805—2001
shall be measured by a magnetic ring balance or a vibrating sample magnetometer. Curie temperature Tc shall be determined by T curve. 4.7.4 Temperature shock
The sample shall be tested in accordance with Method 107 of GB360A and the following provisions. Test conditions: A or B:
Measurement after the test: The corresponding electromagnetic parameters shall be measured according to the provisions of 4.7.3 (see 3.1). 4.7.5 Steady-state damp heat
The sample shall be tested according to Method 103 in GB360A and the following provisions. Test conditions: B
Measurement after the test: The corresponding electromagnetic parameters shall be measured according to the provisions of 4.7.3 (see 3.1). 5 Delivery preparation
5.1 Sealing and packaging
The materials shall be cleaned and dried before sealing. When packaging, dry paper pads shall be added between each single piece of material and packed into an intermediate packaging box. The gaps in the box shall be filled with soft filling materials, and the certificate with the seal of the quality inspection department of the contractor shall be placed in the box. The seal or label with the seal of the quality inspection department shall be affixed to the outside of the box. The intermediate packaging of the material shall be able to ensure that the material will not be damaged due to improper packaging during transportation and storage.
The intermediate packaging box should contain a certificate of conformity, which should indicate: a. Detailed specification number:
b. Trademark and name of the manufacturer:
Material brand and batch number:
dQuantity:
e. Inspection date:
f. Name or code of the inspector:
g. Seal of the inspection department of the manufacturer.
5.2 Packing
The packaging boxes containing materials should be packed into the packaging box, and the gaps in the box should be filled with shockproof materials. There should be a packing list in the packaging box, which should indicate:
Trademark or name of the manufacturer;
Material brand:
Quantity of intermediate packaging;
Packing date;
e. Name or code of the packing person.
5.3 Transportation and storage
The materials packed in accordance with 5.2 can be transported by any means, but they should be protected from direct rain and snow and mechanical damage. The suitable storage environment temperature for the materials is -40°C to 60°C, the relative humidity is less than 85%, and there is no acid, alkaline or other harmful gas.
SJ20805—2001
5.4 Marking
The "Rain-averse" mark should be marked on the outside of the transport packaging box in accordance with the provisions of GB191. 6 Notes
6.1 Intended use
The gyromagnetic ferrite materials specified in this specification are intended for military and civilian microwave ferrite devices under specified frequencies and conditions of use, such as RF isolators, RF circulators, and RF phase shifters. Gyromagnetic ferrite materials lack ductility and are not suitable for use as structural parts in design. 6.2 Contents of order documents
The contract or order form shall state the following contents: a.
Name and number of this specification;
Name and number of corresponding detailed specifications:
Type and brand of materials;
Quantity of materials (weight or number of pieces):
Special requirements, including processing, packaging, transportation and other requirements. Additional notes:
This specification is under the jurisdiction of the Fourth Institute of Electronics of the Ministry of Information Industry. This specification was drafted by the Ninth Institute of the Ministry of Information Industry. The main drafters of this specification: Liu Jian, Li Kewen, Hou Juzheng, Shi Chengyu, Wang Dongmei. Project code: B92022.
KAONiKAca-
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