CB/Z 134-1998 Technical requirements for processing of submarine pressure hull structural parts
Some standard content:
China State Shipbuilding Corporation Department Standard CB/134-98 Processing technical requirements for pressure-resisthull structure of submarine Issued on March 20, 1998 Implementation on August 1, 1998 1.1 China State Shipbuilding Corporation Department Standard Processing technical requirements for pressure-resisthull structure of submarine This standard specifies the processing requirements and inspection rules for pressure-resisthull structure of submarine (hereinafter referred to as parts). 1.2 Applicable scope This standard applies to 921A, 9224, 923A plates and 931A bulb flat steel. 2 Standards for use
GJB165-23 Specifications for 1CC:Ni3MoV, 1CrNi3MoCn, 10CrNi2MoCu copper plates G131663-53
CB/Z121-93 Technical requirements for defect repair welding of 921A copper plates CH/7 133-74bzxz.net
Technical requirements for medium frequency bending and heat treatment of 921A steel 3 Definitions
Check the relevant text.
4 Requirements
This chapter has no relevant text,
5 Detailed requirements
CD/Z 134—98
Classification number: 0106
Pure potential CB/Z134-14
Except for the car standard visual completion: warning parts J layer connection C5, 213 standard provisions, S2)A construction city steel medium frequency pipe socket and heat treatment production equipment CB/2181 provisions,
51.1 For obviously shaped steel returns and ball rooms, before the energy is drawn, they should be reversed and corrected, and the environmental source medical sense should be not less than one 25 heart, 5. 1. 1.1 After the new correction, the non-half-and-half warehouse should be connected to the provisions of 1. 1
Point plate thickness
Ningyi Yanbo Industry Corporation 1993-03-2C Standard surface skin per square meter
1998-08-01 Real family
cn/2134-99
5. 1. 1. 2 After the profile is corrected, the straightness of each meter of length should not be greater than 2. C mm. When the length is greater than 4 m, the straightness should not be greater than 8. cm.
5.1.2 Before the material is cut, the rust and floating objects on the surface of the steel plate should be removed, and the defects, cracks on the edges, and swells should be checked. For the brand that does not meet the requirements of the drawing, the defect specifications of the short bottle should be evaluated according to Article 3.10.4 of GJB1663. When welding is required, it should be carried out according to the provisions of CB/Z121. 5.1.4 After the pressing plate is cut, the size of the plate shall meet the requirements of Figure 1, Figure 2 and Figure 3. Figure
Circular shape
Situation of polishing plate
5.1.5 The length of the profile without excess is as follows: a. The deviation of the length less than 3m is = 1.0mm; b. The deviation of the length greater than 3m is = 2.0mm.
5.1.6 The ambient temperature during air cutting should not be lower than 25℃ 5.2 Processing
When the temperature of the parts does not exceed 25℃, it is cold processing, and when the parts are partially or completely heated above 25℃, it is hot processing. 5.2.1 Pressed plate processing
5.2.1.1 The main thickness of the plate parts is the same as the thickness of the plate. The plate is leveled on the leveling machine, and the flatness per square meter is not more than 1.5: b. According to the drawing number, mark the unified point, write the cup mark and process symbol, and open the gap; 2
CB/2 134—98
c. The cabinet is rotated on the zero plate machine, as shown in Figure 3. During the process, for the left plate with a surface hanging shape, a sample with a length of 1.5m is used to check the bending radius at the picking part, and for the shell plate, two samples are used to check the bending radius at both ends: Figure 3
d. The rounded plate is corrected on the loss platform, t, and the inspector performs inspection and registration as required
3. Submit the assembly process to reverse the light turning. 5.2.1.2 Notes on the pressure-resistant plate rolling: a. The rail must be rolled at both ends of the shell plate to a length of s00mm and stretched. See Figure 4F and Figure 4
b. For the production of the circular auxiliary body, the angle bisector must be drawn on the plate. During the production of the plate, the angle line must be parallel to the center line. The rolling method starts from the end, and then the center is zero. See Figure C/2134-98
parallel to the steel rolling of the three-axis center. The center line and its left and right parallel lines on the plate must be parallel to the center line at any time. First, roll the circle section with a length of 1.5 at both ends, and then roll the part. 5.2.2 Pressure-resistant bone work
5.2.2.1 The center line and the surface line of the bone cavity should be indicated by the front and back points. 5.2.2.2 The electrical connection of the bone cavity should be in accordance with the provisions of CB/2181. 5.2.23 The bending of the bone should meet the following requirements: a. The distance between the edge of the bone and the theoretical radius R on the template or the inspection platform should be less than 1.0mm. b. The ribs should be less than 2.0mm in length within 1m, and the total flatness of the bone surface should not be greater than 5.0nm; c. The deviation of the bone ball from the theoretical position should be ±3.0mm; d. The bending deviation of the bone material should be ±1.0mm; t. The flatness of the bone from the edge should not be greater than 2.0m; f. The local thinning of the ribs is allowed to be less than 1 within a length of 35mm. .5mm, see Figure 5: The thickness reduction in other areas is not more than 1.0mm.
5.2.2.4 The joint of the bone (see Figure 7) shall meet the following requirements: CB/Z134-9B
, the joint of the bone shall be correct, and the compensation deviation shall be =1.0minh. The straight line within 1m length shall not be more than 2.cmc. The theoretical deviation of the bone ball shall be 3.Umm; the bone profile shall be 1.
, and the flatness of the edge of the bone shall not be more than 9.E. The deviation of the joint after the joint is 1.0mm. 5.2.2.5 The front and rear joints shall meet the requirements. The internal circumference of the bone shall be -2.0~-4.2 mm; 1, and the external cervical ventricle deviation shall be +1.0~-2.0m. 5.2.3 Other processing
5-2.3.1 Minimum bending or removal radius of cold-treated parts: see 3p South
5.2.3.2 Hot-processing
Bending radius
CB/Z 134—9B
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8. For parts effectively put into the heating furnace, the selection rate should not be higher than 950, and the temperature in the furnace should be S20~95C. According to the original temperature of the parts, the retaining time is calculated at a control rate of 25mm/h: . The temperature of the parts is 920~950℃. The aging temperature should not be lower than 550℃; C hot bending should be micro-quality treatment and mechanical properties test, 921A, 5221 plates should be inspected and adjusted, and the sample should be heated and quality treated in the same way as the parts!
.After hot bending, the shape of the practical sample set is simply extracted on the scale, and the non-changing parts are suitable for cracks, sand and other defects. 5.3 Heat treatment
5.3.1 Heat treatment grouping
Change the situation, the parts after bending are divided into three groups, as shown in Table 4, Table 4
Code half meal
Color what half product
Improper heat treatment
Li bending after the original requirements for heat treatment
English buy U10C high improvement of fire·No change in performance test all infant quenching and tempering treatment, select the mechanical properties test tube method
; for steel extreme
method; forbidden! If the parts have the same number and are processed separately in the same furnace, they shall be processed together with the same mechanical properties test unit. The test pieces must be tested in accordance with the number and test piece strength test according to the provisions of 2.5 of G565. ③ The samples are: 521A double-sided, 922A for impact, 1mm for tension, 1mm for tension, 0234 for tension, 5.3.2 Refractory parts
5.32.1 The refractory temperature of the parts shall be within the range of 820~0. 5.3.2.2 When selecting the furnace, the temperature in the furnace shall not be higher than the refractory temperature. 5.3.2.After the furnace is turned on for 3 seasons, first keep the temperature for 30 minutes and then start to rise. After the temperature inside the furnace reaches the appropriate level, the temperature holding time is calculated based on the maximum temperature (calculated based on the maximum thickness of 2~3min/mm).
5.3.2.4 The parts are heated in the electric furnace. When the furnace is initially heated, in order to reduce the oxidation of the parts, the furnace must maintain the correct pressure and the amount of reducing gas (there is a slight increase in the amount of fire). The fire is not allowed to contact the surface of the parts. 5.3.2.5 The time for the parts to be taken out of the furnace and floated should be within 5 minutes. The floating time should not exceed 55°C. The parts will be cooled to a temperature not higher than 15°C. When the parts are effectively put into the range of fire, the production considerations are paid by the guest. The deformation is small. In some cases, the temperature is very low. Spray water on the steam head to cool it. 53.3 Tempering between parts
5.3.3.1 The tempering temperature of parts should be controlled in the range of 650~580℃. The specific tempering temperature shall be determined by the heat treatment process personnel. 5.3.32 When the parts are put into the furnace, the temperature in the furnace shall not be higher than the tempering temperature. 5.3.3.3 After the parts are put into the furnace, the temperature in the furnace reaches the tempering temperature. After the tempering temperature is reached, the temperature is reduced by 5~10min/1mr according to the thickness of the parts. Then cool in the air.
5.3.3.4 After exposure to light, the deformed parts can be corrected. 5.3.4 For auxiliary bone blue treatment
Cp/2 134—98
The heat treatment of compression parts shall be carried out in accordance with the provisions of CB/Z181. 5.3.5 Inspection requirements
5.3.5.1 The mechanical properties of steel parts subjected to high temperature heat treatment shall meet the requirements of B/2181. 5.3.5.2 The mechanical properties of parts subjected to high temperature heat treatment shall meet the requirements of 3.5 of JB1663. 5.4 Inspection rules
5.4.1 The shell shall be inspected for the second time.
5.4.1.1 The pressure test should be in accordance with the requirements of Figure 1, Figure 2 and Table 2. 5.11.2 The difference between the market letter and the competition version of the milk painting should be in accordance with Figure 8, Area 9 and Table 3. 1/4 Year Plastic Mixed Board
Pressed and added with Baihua R to send photography
(not quality) Net Cheng Chinese Medicine
Point People Sample
No plate shape block
Net Special Confusion
5.4.2 Pressure resistance fat bone processing inspection
CB/2134-98
I 5 After the pressing of the plate, the size of the plate shall be different from that of the plate. The workers shall implement the requirements of 6.2.2.3~6.2.2.5. 5.4.3 Other structural parts shall be inspected twice. 5.4.3.1 Cold treatment parts shall be inspected for a short time and their shape and size shall be recorded, and the requirements shall be lowered after the film is drawn. 5.4.3.2 Hot treatment parts shall comply with the requirements of G31663. 5.5 All parts shall be strictly inspected according to the standards. 5.5.1 All parts shall have obvious steel stamps, and the inspection line room shall use samples. 5.5.2 Before each part is produced, each production worker shall have a record of the risks. And these production positions shall be kept for inspection. 5.5.3 The original material certificate of the steel and the test results of the second factory and the test report after heat treatment should be provided by the factory technical inspection department.
Additional instructions
This standard is produced by the China Shipbuilding Industry Corporation. The production process group: This standard is respectfully submitted to the 11th Institute of China Shipbuilding Industry Corporation. This standard is drafted by the five nobles of the ship.
This standard is the main author: Xia Paqing,
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