HG/T 2600-1994 Quality classification of liquefied petroleum gas tank trucks HG/T2600-1994 standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2600—94
Liquefied Petroleum Gas Tank Truck
Detailed Rules for Quality Classification
Published on 199404—08
Ministry of Chemical Industry of the People's Republic of China
Implementation on 1994-10-01
Chemical Industry Standard of the People's Republic of China
Detailed Rules for Quality Classification of Liquefied Petroleum Gas Tank Truck Subject Content and Scope of Application
This standard specifies the detailed rules for quality classification of liquefied petroleum gas tank trucks. This standard applies to the quality inspection and grade assessment of liquefied petroleum gas tank trucks. Other liquefied gas tank trucks may also be adopted for reference. 2 Reference standards
GB150 Steel pressure vessels
HG/T2388 General rules for quality classification of steel welded pressure vessels HG5-1471 Technical conditions for liquefied petroleum gas tank trucks JB4708 Welding process assessment for steel pressure vessels 3 Basic requirements for product quality classification
HG/T2600-94
3.1 This standard is the basis for quality inspection by the enterprise quality inspection department, and can also be used by the national and departmental quality supervision and inspection agencies for product quality supervision and random inspection or quality inspection.
3.2 The categories and levels of product quality characteristics shall comply with the provisions of Chapter 4 of HG/T2388. 3.3 The product quality grade assessment shall comply with the provisions of Chapter 5 of HG/T2388. 3.4 When conducting quality inspection on products, the inspected party shall submit relevant information on the inspected products and provide all technical documents and quality management documents of the selected products according to the requirements of the inspecting party. 3.5 If parts and components can be inspected on the products, they should be inspected on the products to be inspected. Otherwise, parts and components equivalent to the number of products to be inspected should be inspected from the products in process.
4 Classification rules
The material of the tank body should comply with the provisions of Table 1. 4.1
4.2 The welding part of the tank body should comply with the provisions of Table 2. 4.3 The assembly part of the tank body should comply with the provisions of Table 3. 4.4 The machining part should comply with the provisions of Table 4. 4.5 The performance test and safety accessories should comply with the provisions of Table 5. 4.6
Chassis modification and vehicle assembly should comply with the provisions of Table 6. 4.7
Paint packaging and factory documents should comply with the provisions of Table 7. Approved by the Ministry of Chemical Industry of the People's Republic of China on April 8, 1994 and implemented on October 1, 1994
Quality characteristics
Quality characteristics
Classification
Manhole cover
1.5 Manhole bolts
1.6 Pressure-bearing components
Welding materials
260094
Tank materials
Quality characteristics indicators
(1) To reach Class B,
(2) Before feeding, an appearance inspection should be carried out and non-destructive testing should be performed if necessary.
Non-destructive testing, and make corresponding records and reports
(1) Meet the requirements of Class C
(2) Have a purchase specification
(1) Meet the requirements of Class C
(2) Have a purchase specification
(1) The material (including substitutes) conforms to the drawings and
GB150 and "Safety Technical Supervision Regulations for Pressure Vessels" (hereinafter referred to as "Container Regulations").
(2) Acceptance and review are carried out according to the requirements of "Container Regulations". Inspection, the control certificate (including mark transfer) is traceable (1) in accordance with the requirements of welding process and relevant standards (2) control is carried out according to the requirements of "standard", and the certificate is traceable inspection method to verify the physical object and certificate assessment results and quality characteristics of welder qualification 2.2 Welding process 2.3 Product welding
2.4 Welding joint
Internal quality
Class A, B
Weld reinforcement
2.6Class A, B
Weld width
Quality characteristics
Classification
HG/T2600-94
Table 2 Tank welding
Quality characteristics indicators
The welding of pressure components must be performed by welders holding valid certificates issued by the labor department for the corresponding items;
Have complete welding process assessment and meet the requirements of JB4708. In accordance with Article 10.5 of GB150, the control documents are complete and traceable. (1) To reach Class B. (2) The same part shall not be repaired more than once. (3) The rate of 100% X-ray flaw detection film (by number of films) shall not be less than 85%. (4) The pass rate of one-time flaw detection (by number of films) shall not be less than (1). To achieve level E, (2) the same part shall be repaired no more than twice. (3) the rate of 100% X-ray flaw detection level 1 films (by number of films) shall not be less than 80%. (4) the pass rate of one-time flaw detection (by number of films) shall not be less than (1) the requirements and results of non-destructive testing shall comply with the inspection method. t||Archive certificate
and physical
Verification voucher
Verify original
Non-destructive testing data
and negative film,
GB150 and HG5
一1471 provisions
(2) The same part is repaired according to GB150 regulations
If necessary, draw
(1) Meet the requirements of level b
(1) Meet the requirements of level c and meet the requirements of GB150. Weld measurement (2) Same When the following is met (
(2) The difference in the same weld height
is not greater than e/2
Plate thickness 8
Reinforcement.
12<8250~2
(1) The weld width is not large (1) The weld width is not greater than the outer edge width of the groove
Card
The outer edge width of the groove
(2) The width difference of the same weld is not greater than 4
(2) The same weld width
(3) The width difference of the same type of weld is not greater than 8
The difference in width is not more than 3
(3) The width of the same type of welds
The difference in width is not more than 5
Note: The same type of welds refers to the groove, type, and the same welding method.
Assessment results
Quality
2.7C, D categories
Quality
Weld appearance
2.9 Weld undercut
2.10 Nondestructive testing
Marking documents
2.11 Weld Post-heat treatment
2.12 Welding record
2.13 Welder's stamp
Quality category
HG/T2600-94
Continued Table 2
Quality characteristic index
(1) Meet the requirements of grade C
(1) Meet the requirements of grade C
(2) When the size of the weld leg is less than 8, the positive deviation is 3 and the negative deviation is 1: When the size of the weld leg is less than 8, the positive deviation is 3 and the negative deviation is 1: When the size of the weld leg is greater than 8 and less than 12, its positive deviation is 4 and its negative deviation is 1: when the weld leg size is greater than
(2) When the weld leg size is less than or equal to 8
, its positive deviation is 3 and its negative deviation is 1.5; when the size of the weld leg is greater than 8 and less than
or equal to 12, its positive deviation is 4 and its negative deviation is 1.5. When the size of the weld leg is greater than 8 and less than
or equal to 12, its positive deviation is 1.5 and its negative deviation is 1.5. |Inspection method
(1) Check the original
preliminary
seam
perform non-lifting flaw detection according to the design requirements
and meet the design quality measurement instrument special
quality requirements
(2) When the weld leg sizewww.bzxz.net
is less than or equal to 8,
its positive deviation is 3,
negative deviation is 2: When
weld leg size
tolerance is 4,
negative deviation8is less than 12,
is 1.5: When the positive deviation of the weld leg is 4 and the size is greater than or equal to 12, the positive deviation is 2; when the size of the weld leg is greater than 4 and the negative deviation is 12, the positive deviation is 4 and the negative deviation is 3. The weld surface shall not have cracks, pores, (1) to achieve grade b quality (2) the weld surface shall not have defects such as grooves, overlaps, sudden protrusions and depressions, isolated pits and slag inclusions, and shall not leave any Slag and flying objects are not allowed to bite the weld. It conforms to the drawings and the provisions of GB150. (1) The non-destructive testing certificate complies with the relevant standards. (2) There is a non-destructive testing marking part map. (3) The marking is clear and the part is accurate. Verification certificate (1) There is a heat treatment process specification that conforms to the drawings (including heat treatment temperature, holding time, heating and cooling speed, workpiece temperature difference, furnace temperature, installation position and number of thermocouples). (2) There is a temperature control automatic measurement record report that conforms to the process specifications. The report shall comply with the requirements of the welding process regulations and be complete and accurate (1) with welder stamped location diagram of the welds of the main pressure-bearing components of the tank body (2) the stamp is clear and the location meets the process requirements (when the drawings and process regulations do not allow stamping, there should be traceable voucher information) and report
Verification record
Verification of the actual object
Evaluation result
Grade
Quality characteristic
Symmetry category
3.1 Roundness
Straightness
3.3 Weld arrangement
Weld joint
Misalignment tolerance
3.5 Welding seam angles
Shell thickness
Orientation dimensions and tolerances of pipe openings, supports and internal parts
Total length of follower
Following body surface
3.J0 Head forming
Connecting flange
Assembly shape
HG/T2600-94
Tank assembly
Quality characteristics
Conform to the drawings and GB150
(1) Meet the requirements of Class B
(2) Class A welds shall not have holes
Thick plate products
Class A. Class B.
≤1/68m≤0.188m
≤0.1%+1 and not more than 4
Conform to the requirements of the drawing and GB150
≤0.208g
≤0.1%+1.5 and not
More than 4.5
Not less than the nominal thickness minus the negative deviation of the thickness of the steel plate C(1)Meet the requirements of Class B
（2）Dimension tolerance is not more than 80% of the value specified in the corresponding standard
Conform to the requirements of the drawing and the corresponding standard
≤0.18+2 and not more
Inspection method
Special measuring tool
Special measuring gauge
Special sample
Thickness gauge
Orientation size Conforms to the drawing, tolerance conforms to the requirements of the corresponding standard Steel tape measure
Special measuring tool
Steel tape measure
Meet the b grade requirements, surface damage should be repaired and ground to meet the requirements of GB150 and have a smooth transition
(1) Inspect according to Article 10.2.2.3 of GB150, the maximum interval is not more than 1%Di
(2) The wrinkle depth is not more than 1. and there is no tension
Conforms to the drawing and Article 10.2.2.3 of GB150Conforms to the drawing and Article 10.2.3.7 of GB150Object
Special measuring tool
Special sample
Steel tape measure
Evaluation results
Quality sustainability
Manhole cover
Thread quality (including bolts, nuts and
washers)
Manhole cover thickness
Manhole flange thickness
Liquid level gauge flange
Liquid phase pipe flange
Gas phase pipe flange
Safety flange
Manhole cover seal
Cover quality
Safety valve flange
Seal quality
Liquid level gauge flange
Seal surface quality
Liquid phase pipe flange
Seal surface quality
4.14 Gas phase pipe flange
Seal surface quality
4.15 Manhole flange seal
Cover quality
Quality awaited||t t||Property category
HG/T2600—94
Table 4 Machined parts
Quality characteristics
Conform to the drawings and the corresponding provisions of GB150
Conform to the drawings and the corresponding provisions of GB150
Conform to the drawingsNo
scars and
effective protection
Conform to the drawings, no
scars and
effective protection
Conform to the drawingsNo
radial scars, and
protective measures are taken
Conform to the drawings, no
radial scars, and
protective measures are taken
Conform to the drawingsNo
radial penetration scars||t t||Inspection method
Special measuring tool
(Inspection items:
1. Mechanical properties
2. Thread angle
3. Thread pitch diameter
4. Surface roughness
Surface roughness
marks, and protective measures are taken
Comparison sample
Protection measures are taken
Comparison sample
Evaluation results
One-fit
Grade
Quality
Strength test
Air tightness test||tt ||Purchased safety accessories and main accessories
Self-made safety accessories and main accessories
Assembly of liquid level gauge
Safety valve opening
and reseating test
Hydraulic pressure test of loading and unloading hose
Air tightness test of loading and unloading hose
Quality characteristic
Characteristic category
HG/T2600-94
Performance test and safety accessories
Quality characteristic index
(1)Achieve grade b
(2)Unrepaired
One-time test
(1)Achieve grade b
(2)Re-test
Conform to the drawing and GB150 regulations
(1) Reach C level
With complete quality of the manufacturer
(2) Have procurement certificate
With complete design, test data and certificate of qualificationFlexible rotation, firm and reliable
Conform to drawings and product standards
Conform to drawings
Inspection method
Verification certificate
Verification certificate
Verify the actual object or
Verify the original record (re-inspect when necessary)
Evaluation results
Quality characteristics
Automobile
Chassis modification
Left and right support level
Left Tolerance between the center of the right support screw hole and the center of the tank body
Body and tank body
Fire extinguisher installation
Emergency cut-off valve
Operation test of the emergency handle
Modification test of the brake air circuit
Operation box
6.10 Installation of drag chain
Taillight and license plate
6.12 Operation indicator
Emergency handle is easy to melt
Alloy
Quality characteristics
HG/T2600-94
6 Chassis modification and vehicle installation
Quality characteristics
It is a qualified product that has been finalized and identified.With manufacturer's quality certificate
Conforms to drawings and product standards
Conforms to drawings
Conforms to drawings and product standards
Conforms to drawings
Flexible operation without trouble
Start the engine and charge the air circuit for 15 minutes. There should be no leakage. Conforms to drawings, firmly installed and flexible operation. Conforms to drawings, firmly installed
Conforms to drawings, clear text, firmly installed (1) Meets e-level requirements
(2) Has the matching of fusible alloy Comparison and inspection regulations
Fuse overflow 70
Inspection method
Inspect chassis quality certificate
Inspect the actual object and
Refit inspection record
Special measuring tool
Inspect the actual object
Visual inspection by hand
Actual operation
Verification record
Verification of the actual object
Visual inspection by hand
Verification record or
Evaluation result||t t||Grade container
Quality characteristics
External performance
Inside the tank
Cleanliness
Rust prevention, paint
Packaging nameplate
Factory documents
Quality requirements
Classification
Product quality inspection summary table
HG/T2600-94
Paint, packaging and factory documents
Quality characteristic indicators
Conform to drawings and product standards Standard requirements
Comply with the provisions of GB150. No stagnant water or residual debris (L) Comply with the requirements of the drawing and GB150
(2) Paint surface is smooth, with uniform and beautiful color. Comply with the requirements of the drawing GB150 and the "Container Regulations". Comply with the requirements of GB150 and the "Container Regulations".
Inspection method
Verification of actual objects
Verification materials
The product quality inspection summary table should be filled in Table 8 and should comply with the requirements of Article B3.5 of HG/T2388. Table 8 Product quality inspection summary
Quality characteristics
6 Product quality grade assessment
Inspection items
Qualified grade Unqualified grade Excellent grade
Assessment results
Grade Gexin
Product number:
Grade item rate%
Excellent grade+first grade
Qualified grade
Use the data in Table 8 to compare with Table 3 in HG/T2388 to assess the product quality grade and fill in Table 9. The format should comply with the provisions of HG/T2388.
Manufacturer name
Product name
Product model
Product number
Completion date
Quality of this product
Grade assessment
Table 9 Product quality grade assessment results
Product drawing number
Factory number
Additional instructions:
This standard is proposed by China National Chemical Equipment Corporation. HG/T
2600-94
This standard is under the jurisdiction and interpretation of the Chemical Machinery Research Institute of the Ministry of Chemical Industry and the China Chemical Equipment Association. This standard was drafted by Beijing Metal Structure Factory. The main drafter of this standard: Wang Lixue.
People's Republic of China
Chemical Industry Standard
Liquid Petroleum Gas Tank Truck
Quality Classification Rules
HG/T2600-94
China National Chemical Equipment Corporation
Postal Code 100011
Printed by Beijing Institute of Chemical Technology Printing Factory
Copyright reserved
Format 880×1230
First Edition September 1995
No Reprinting
18,000 Words
First Printing September 1995
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