Some standard content:
[C5 23.130
Machinery Industry Standard of the People's Republic of China
JB/T 8727-1998
Hydraulic fluid power-llose assemblies199803-19 Issued
Ministry of Machinery Industry of the People's Republic of China
[998-07-01 Implementation
J/18727:1998
The technical standards of the standards after Appendix A and Appendix B in this standard were proposed and standardized by the National Standardization Technical Committee for Pneumatics and Pneumatics. The technical standards were initiated and completed by the Tianlu Engineering and Vibration Research Institute of the Ministry of Machinery Industry. The main drafter of this standard is Feng Quban
Machinery Industry Standard of the People's Republic of China
Hydraulic fluid power.-Hose asscmbliesJ8/T $727-1998
This standard specifies the classification, inspection and connection size, technical requirements, suitable methods, inspection rules and packaging of the products of the hydraulic rubber transfer assembly (with a simple shifting wire pressure sound assembly and a steel wire independent external image rubber assembly) with an inner diameter of 5~31.5mm, 5~ssmm, 5-51mm, respectively, type 1, sleeve type and welded type. This standard applies to the identification and filtering jade wave The working medium and working range are 4 (~-1) 1-5 (~1) 2-wire braided soft liquid hose assembly and 1-5 (~12) 1-5 (~12) 2-wire braided soft liquid hose assembly and 2-wire braided soft liquid hose assembly. The following reference standards are also included in the supplementary notes: The text of this standard is published by the standard, and the versions shown are all valid. All standards will be closed before you order them. The parties using the standards should explore the possibility of using the following standard versions. GX-8
GB/T 368392
G5 752:-87
CB+S3SS?
G3 606.1-88
GB9025.285
tb sces.3-85
GR 144-X
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JB/T78585||tt ||2B 122 008-88
3 Product classification
3.1 Assembly type
Medical inspection count sample super sequence state table (active armored car manufacturing street social reverse inspection) energy wire elastic strength liquid indication rubber soft science and teaching generation assembly wave Chen determined the technical conditions
Liquid and soft operation assembly civil inspection method mole
Qiu model pipe connection actual connection size wide oral
Pipe joint details connection size below member type
Make three types of kidney joint connection size ten garbage connection type or quick change steel stick wrapped around the ground retreat observation rubber wave pressure nuclear rubber soft Pu Li soft reputation combination product quality level classification guideline 1 will be the activity assessment method and hydraulic component cleaning degree standard liquid positive hose assembly technology system work
Concentrated pressure hose inspection assembly is divided into three types according to the head structure type: punch type, ferrule type, welding type (or quick type). See Figures 1~3, approved by the Ministry of Machinery Industry on March 19, 1998, implemented in 198, and summarized as follows: JB/T8727—1998 Figure 1: Inlet type liquid hose assembly, chuck type receiving assembly, welded quick-change pressure hose assembly, liquid hose assembly, communication and general length, soft type, steel wire mesh type, good assembly type, steel internal G-type braided steel braided type, braided copper braided type, standard section, 26-15CC3. 3 Basic parameters and connection sizes 3.3.1 Basic parameters and connection sizes of expandable pipe assemblies are in accordance with the provisions of Table 1 8/18727-1993 JB/T8727-1998 Basic parameters and connection sizes of expandable pipe assemblies are in accordance with the provisions of Table 1 8/18727-1993 JB/T8727-1998 Basic parameters and connection sizes of expandable pipe assemblies are in accordance with the provisions of Table 2 The maximum working pressure of the final pipe assembly is 51.E: 55.0 27.5 34.5 38.6 - 37.6 For the smaller threading standard, the self-matching joint or the card-type joint assembly shall meet the requirements of Table 2. Table 2 [Basic parameters and principles of sleeve hose assembly according to the people's energy flow engineering teaching || tt || model flying!
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Total should be high T, for positive)
Silk pure wear low pressure design
Total reduction disease treatment small
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M13>1
M22 ×1.5
M59×2
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2.5: 31. s34.. :
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JB/TA7271998
The total or basic parameters and continuous digging dimensions of the quick-change hose shall comply with the provisions of Table 3 3. 3.3
Table 3 Basic parameters and connection size of the general filter type or quick-change type wire braided hydraulic efficiency pipe
Zhicheng government high engineering properties total method
Finally high engineering method
27. 5 38.Cs6.4.
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2v.5:#7.5
11 is the explosion efficiency network design for low flow connection.
26. 5124.c
ss.c - 2f. t
1) For the current consulting type, the efficiency needs to be less than the standard specified by the head or trend, and the technical card requirements are
88 in 1.1--1.3.
The installation requirements should meet 2200
4.2 Energy saving
4.3 Length change
The length change rate shall not exceed the specified length: The length change
Relatively speaking
Xin Lin Zheng Shou Ying
M52×2
Mot× 2:
4.2.2 Low temperature flexibility
There shall be no leakage phenomenon.
4.2.3 Pressure relief
No abnormal phenomenon is allowed,
No leakage and other abnormal phenomena are allowed, 4. 2.5 The minimum internal pressure is taken
IB/I872
Use the specified compensation or steel ball to detect the wave detection. This allows two heads to pass. 4.2.6 Blasting performance
Under the expected small blasting pressure, there will be no leakage or rupture. 4.2 7 The durability
should reach the specified Dong punching effect in Table 5--Table 5. The small effect is intentional and its performance is different from the conventional strip length 5 silk paper woven hydraulic release pipe assembly green punching test soft pipe
Type 1, Type 1
Type 2, Type 2T
3A, 3 to
Clothes 5 Zhao silk bubble porcelain liquid soft kidney assembly ball punching test number of snow
"一" becomes smaller for this machine product, one "李 indicates that this product pushes the clean liquid main punching record to use the child, often does not reverse the ball test display, times
JIB/T 87271998
The quality level of the product shall be divided into two levels according to the provisions of J/5058. The qualified quality requirements are as specified in 5.2.2. 4.4 Assembly
4.4.1 Assembly technology requirements
Component assembly technology requirements shall comply with the provisions of GB793%B7 1.5.-.5. 4.4.2 Internal cleaning
The assembled product must be cleaned before leaving the factory, and the internal material content shall not exceed the provisions of Table 7. The internal material content index
1.FF 198L2.E2
Verification: The length of the hose is m.
4.5 Appearance requirements
The points shall comply with 2B 22-1. 5.1 Test method for long-term use or durability test according to G7939: 5.2 Minimum flow rate
I7. HEL ss1.-1. G5t.,15. C+L The specified mandrel or ball is passed through the joint of the total point of the lack of the general sample of the ball size according to the ratio of 4 (standard attached to the withdrawal.
3.3 Internal estimation of cold travel according to JB/T7356. 6 Inspection regulations
6.1 Inspection classification
Product inspection classification single teaching to start inspection and acceptance.
6.1.1 Type inspection
Type inspection refers to the full inspection of product quality, which is the same as the technical inspection of the second type of product. The third type of product should be inspected.
a) New products and old products are all produced in trial production. The third type of product is produced in batches. The power supply or raw materials may affect the product production time: During production, the product is subject to a period of (one to two years) or a period of (one to two years) or a period of (one to two years) or a period of (one to two years) after production. The production station signs a long-term inspection. The factory inspection results are very different from the last type inspection results. The national quality supervision agency has proposed retrograde type inspection requirements. (. 1. 3. Inspection: Inspection refers to the inspection of products at the time of delivery. 1.3 Type inspection items are specified in the table.
Length and performance
Method matching original quantity
External empty packaging
Shenbei level
Out, give temporary items according to the table
Resistant jade supervision
Relevant inspection
Minimum five quantities
Situation store general inspection
6.1 Oil
JB/I 87271998
Table 8 Inspection items
Changan variable test
Low variable curved pipe rubber
Constant pressure test
Tide test
Night test
Da Zhaoan Xiaodi transportation volume
Sustainable durability test (first test)
Guanyuan special Du (level)
Assembly operation Sanshui
Interior cleaning
Appearance The quality of the equipment is subject to the requirements of the British standard inspection and inspection. The annual inspection can be completed in a single position. The monthly inspection is carried out in a standard consultation. The production process is reported in the inspection report. The small sample is sent to the manufacturer for random inspection. The small sample is sent to the manufacturer for random inspection. The product sample is sent to the manufacturer for random inspection. The technical specifications of GB2628 are as follows. 6. 2. 1 Convenient performance control inspection: Qualified water A2 value is 2. a1 6) Sampling case: Regular inspection sampling plan: This small sample is a small sample of 40. 1 The size of the test is! Root, 21 for long test, the current determination of the fiber drawing table B. 6.2.2.1 Key characteristics (A grade)
a) Acceptable quality level AQL value is 1.
JB/T8727—1998
h) Sample type: Normal inspection Secondary sampling plan: Inspection level: -General inspection level 1
6.2.2.2 Or important characteristics (B grade 2;
a) Acceptable quality level AQL value is 6.5:
Recommended sample type: Normal inspection A proposed sample plan: e) Inspection level: General inspection level 1.
6.2.3 Internal quality assurance level inspection:
) Standard quality level 4 Good! .The lot is 5
Fu Hua production type: normal investor sample) inspection technical level: generally inspected at level 1,
6.2. 4 introduces the rules
according to 2528 provisions.
6.2.41-6 sampling technical inspection plan
According to the statistical results of the sample technical inspection, if the number of unqualified products found in the sample is less than or equal to the designated number, then the batch is judged to be qualified: if the number of unqualified products found in the sample is greater than or equal to the designated number, then the batch is considered an unqualified batch. 6.2. 4.2 Secondary sampling plan
class unveiled sample car control production sales, when the ticket is not in the middle of the age of the current record of the food selection of small one into the first qualified judgment of the whole, then the child batch can be judged as qualified batch; high enterprise dyeing wood middle of the age of the current unqualified products greater than ten or will be ten first unqualified: fixed number. Then the batch is the next standard. Fang in the net sample found unqualified products, greater than the first, will fall into the demarcation of the effectiveness of the first small positive type real number, then the oil first selection cloud inspection: Fang in the regular and with cattle with the barn found unqualified products and small one or the next second standard demarcation of the whole, then the first unqualified batch of the car core in the first profit calculation sample of the current person disassembly product efficiency person or school! The first unqualified judgment number, school! The legal batch is not a standard batch
for the marking, labeling, packaging, storage and transportation according to the 3rd standard in 003.
A1 core receiving pin ball size see table A1
Soft nominal inner wall
JB/T8727
Appendix A
(Standard Appendix)
Core or ball size
Core or outer size
JD/T8727199
(Standard Appendix)
Hydraulic soft operation assembly pressure test sampling regulations B! Accompanying anti-barrier assembly pressure test regulations without table H1 batch
53 -- 3C
91~15℃
151~280
23!·0
E51 --:200
Sample size
Combined effectIf the number of unqualified products found in the net sample is greater than the first, the first unqualified type of real number will be determined in the bureau, then the oil first selection cloud will be checked: if the unqualified products found in the regular and the second batch are not in the first batch, the qualified batch will be determined in the first batch or the second batch! The first batch is not qualified, the first batch is not qualified.
A1 core receiving pin ball size see table A1
Soft nominal inner wall
JB/T8727
Appendix A
(Standard Appendix)
Core or ball size
Core or outer size
JD/T8727199
(Standard Appendix)
Hydraulic soft operation assembly pressure test sampling regulations B! Accompanying anti-barrier assembly pressure test regulations without table H1 batch
53 -- 3C
91~15℃
151~280
23!·0
E51 --:200
Sample size
Combined effectIf the number of unqualified products found in the net sample is greater than the first, the first unqualified type of real number will be determined in the bureau, then the oil first selection cloud will be checked: if the unqualified products found in the regular and the cattle with the barn are not complete, the qualified batch of the whole batch will be determined in the first batch of the profit calculation sample! The first unqualified batch is not a qualified batch. The marking, labeling, packaging, storage and transportation are in accordance with the current standards of the third batch in 003.
A1 core receiving pin ball size see table A1
Soft nominal inner wall
JB/T8727
Appendix A
(Standard Appendix)
Core or ball size
Core or outer size
JD/T8727199
(Standard Appendix)
Hydraulic soft operation assembly pressure test sampling regulations B! Accompanying anti-barrier assembly pressure test regulations without table H1 batch
53 -- 3C
91~15℃
151~280
23!·0
E51 --:200
Sample size
Combined effect
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