This standard specifies the product classification, technical requirements, test methods, inspection details, marking, packaging, transportation and storage of aluminum cabin hollow doors. This standard applies to aluminum cabin hollow doors installed in ship cabins and water structures and passages with Class C fire separation requirements. CB/T 3281-1997 Aluminum Cabin Hollow Doors CB/T3281-1997 Standard download decompression password: www.bzxz.net

47·020-50
Ship Industry Standard of the People's Republic of China
CB/T3281—1997
Aluminium hollowed cabin door
Published on October 17, 1997
Published by China State Shipbuilding Corporation
Implemented on June 1, 1998
CB/T3281-1997
This standard is a revision of CB'3281-85&Aluminium hollowed cabin door. The original standard door frame and door panel are not strong enough. When there is an insulating layer, it is very inconvenient to install the door frame. In view of the above situation, in order to meet the requirements of customers, the original standard AB and C types are changed to AD, AJ, BD, BJ, CD and CJ types. The longitudinal components of the door frame are added, the strength of the door frame is increased, and the practicality of the standard is increased. The original standard stipulates that aluminum parts can only be anti-corrosion by oxidation treatment. After the revision, in addition to the oxidation treatment method, a new process of integral plastic spraying was introduced.
This standard will replace CB·3281-85 from the date of entry into force. This standard is proposed by the National Technical Committee for Ship Equipment Standardization. This standard is under the jurisdiction of Jiangnan Shipyard Group Co., Ltd. The drafting units of this standard: Wuhu Shipyard, Jiangyan Ship Equipment Factory, and China State Shipbuilding Corporation Comprehensive Technical and Economic Research Institute. The main drafters of this standard: Ji Xishan, Weng Huisheng, Huang Guangjie, and Shao Guoying. Scope
Ship Industry Standards of the People's Republic of China
Aluminum hollowed cabin
Aluminum hollowed cabin door:CB/T3281--1997
Classification number: U26
Replaces CB'3281-85
This standard specifies the product classification, technical requirements, test methods, inspection details, marking, packaging, transportation and storage of aluminum cabin hollow doors (hereinafter referred to as hollow doors).
This standard applies to aluminum cabin hollow doors installed in ship cabins and water structures and passages with C-level fire separation requirements. Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191-90 Pictorial markings for packaging, storage and transportation
GB1238-76 Methods for indicating metal coatings and chemical treatments GB1 1874—89
3 Product classification
Opening direction and symbol marks of marine doors and windows The types and main dimensions of aluminum cabin hollow doors are as shown in Table 1 and Figures 1 to 6. Table 1 Hollow door types and dimensions
Through hole dimensions
Single-wall aluminum hollow door
Insulated wall aluminum hollow door
Single-wall aluminum hollow door with emergency through hole
Insulated wall aluminum hollow door with emergency through hole|| tt||Single wall aluminum hollow door with ventilation grille
Insulated wall aluminum hollow door with ventilation grille
600×1600
650×1650
700×1750
800×1750
600×1600
650×1650
700X1750
800X1750||tt ||600×1600
650X1650
700×1750
800×1750
Note: The weight in the table is the total weight of the door leaf and door stick, but does not include the weight of the decorative frame. China State Shipbuilding Corporation approved the door leaf size on October 17, 1997
624X1624
674X1674
724X 1774
824X1774
624X1624
674×1674
724X1774
824X1774
624X1624
674X1674
724X1774
824X1774
Ring wall opening size
6 80×1680
730×1730
780×1830
880×1830
680×1680
730×1 730
780×1830
880×1830
680X1680
730X1730
780X1830|| tt||880×1830
1998-06-01 implementation
3.2 The structural type of AD type hollow door is in accordance with Figure 1.00
CB/T3281-1997
1·Door frame; 2-buffer rubber; 3-door leaf; 4-marine door lock; 5--flag hinge; 6-covering plate; 7-threshold package plateFigure 1
3.3 The structural type of AJ type hollow door is in accordance with Figure 2. IA
CB/T3281-1997
1-door frame: 2-first-level cotton rubber: 3-door leaf: 4-marine door lock; 5--flag hinge: 6-covering plate: 7-door orange package plateFigure 2
3.4 ​​The structural type of BD type hollow door is in accordance with Figure 3. I
CB/T32811997
1-door frame+2-buffer rubber; 3-door leaf; 4-marine door lock; 5-emergency through hole; 6--flag hinge; 7-covering plate; 8-threshold plate Figure 3
3.5The structural type of BJ type hollow door is as shown in Figure 4. 1A
CB/T3281-1997
1-door frame; 2-buffer rubber; 3-door leaf: 4-marine door lock; 5-emergency through hole: 6-flag chain; 7 covering plate, 8-threshold plate Figure 4
3.6The structural type of CD type hollow door is as shown in Figure 5. IA
CB/T3281-1997
1—door frame; 2—buffer rubber; 3—door leaf; 4—marine door lock; 5—ventilation grille; 6—flag hinge; 7—covering plate; 8—threshold plate Figure 5
3.7 The structural type of CJ type hollow door is in accordance with Figure 6. 1A
CB/T3281-1997
65~260
1 door frame; 2—buffer rubber; 3—door leaf; 4—marine door lock; 5—ventilation grille; 6—flag hinge; 7—covering plate; 8—threshold plate Figure 6
3.8 Opening method of aluminum hollow door
CB/T3281--1997
The definition and symbol of the opening direction of the door shall be in accordance with the provisions of GB11874. 3.9 Marking example
Aluminum cabin empty door with emergency through hole and insulating wall with hole size of 650mm×1650mm opening in clockwise direction: Aluminum empty door BJ650×1650-6.0CB/T3281--1997Aluminum cabin empty door with insulating wall and ventilation grille with hole size of 700mm×1750mm opening counterclockwise direction: Aluminum empty door CJ700×1750-5.1CB/T328119974
Technical requirements
The main parts and materials of aluminum cabin empty door shall be as per Table 2. Table 2 Materials of hollow door parts
Parts name
Door frame, door leaf frame
Door panel, connecting plate
Marine door lock, threshold cover plate, flag chain
Adjustable ventilation grille
Emergency through hole of marine door with ventilation grille
Aluminum alloy
Aluminum alloy
Stainless steel
Aluminum alloy
Stainless steel
4.2 Aluminum hollow door should be subjected to strength test to ensure the strength requirement of door leaf. 4.3 Aluminum hollow door should be subjected to opening and closing test to ensure the flexibility of door leaf opening and closing. 4.4 The outer surface of door leaf and door frame shall not have defects such as burrs, scratches, pits, etc. Material
ICr18Nig
Standard No.
GB3190—82
GB3190—82
GB4237-92
GB3190—82
GB4237—92
4.5 When opening and closing, the door leaf, door frame and its accessories shall not be deformed, loose or other defects; and shall be flexible and without abnormal noise; when closing, the lock tongue shall be able to be easily inserted into the lock tongue buckle.
The external dimension tolerance requirements of aluminum hollow doors shall be in accordance with the provisions of Table 3. 4.6
Table 3 Dimensional deviation of aluminum hollow doors
Length of door leaf L:
Width of door leaf B
Diagonal length of door leaf and door frame
Thickness of door leaf and door frame
Gap between door house and door frame
Straightness of door leaf and door frame
Flatness of door leaf and door frame
Note: Flatness is measured by diagonal wire drawing, measuring the distance between the midpoints of the two diagonals. 4.7 The switch device of the ventilation grille should be flexible to open and close, and the emergency through-hole grille should be able to be easily pushed open after opening. Deviation
4.8 The surface of aluminum alloy profiles should be anodized according to D, Y, GF, and B in GB1238-76. Hollow doors can also be sprayed as a whole after they are made.
5 Test method
5.1 Strength test
As shown in Figure 7, the door frame is placed horizontally on the support platform, so that the door leaf and the door frame are in an open state of 60°, and the door closes automatically. This is repeated three times, and the result should meet the requirements of Article 4.5.
5.2 Opening and closing test
CB/T3281-1997
Support platform
Open and close the hollow door at a 3.5° tilt in the opposite direction of the closing direction, repeat the action three times, observe the opening and closing of the door leaf, and the result should meet the requirements of Article 4.5.
6 Inspection rules
6.1 Type inspection
6.1.1 Type inspection should be carried out in any of the following situations: a) trial production and identification of new products finalized or old products transferred to the factory for production; b) product structure, materials, processes have major changes, etc.; c) regular inspection according to the requirements of the competent authorities; d) when the product is out of production for a long time and resumes normal production. 6.1.2 Type inspection items shall comply with the requirements of Chapter 4, and test methods shall comply with the provisions of Chapter 5. 6.1.3 Each batch of hollow doors shall be sampled and inspected at 10% to 15%, but at least one door shall not be less than that. 6.2 Factory inspection
6.2.1 Each door shall be inspected according to the technical requirements specified in Articles 4.1, 4.3, 4.4 and 4.5 before leaving the factory. 6.2.2 If the inspection fails, it is allowed to be repaired and then re-inspected. It can only leave the factory after passing the re-inspection. 7 Marking, packaging, transportation and storage
7.1 Marking
Each hollow door shall be equipped with a nameplate at the lower center of the door leaf, and the nameplate shall have the following contents: a) Manufacturer name and trademark;
b) Product name;
c) Product model and mark;
d) Manufacturing date and number:bzxZ.net
e) Inspection pass stamp.
7.2 Packaging
7.2.1 After each door passes the inspection, a plastic film should be pasted on the surface to prevent the surface from being scratched. 7.2.2 The packaging box should be strong enough.
7.2.3 The products placed in the box should be guaranteed not to move relative to each other. 7.2.4 After the products are packed, there must be a packing list and product inspection certificate in the box. 7.2.5 The product packaging box should have the following obvious signs: 9
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