This standard specifies the dimensional tolerances of rubber and plastic parts for lead-acid batteries. JB/T 6766-1993 Rubber and plastic parts for lead-acid batteries JB/T6766-1993 Standard download and decompression password: www.bzxz.net
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Machinery Industry Standard of the People's Republic of China Dimensional Tolerance Subject Content and Scope of Application of Rubber and Plastic Parts for Lead-acid Batteries JB/T 6766—1993 This standard specifies the dimensional tolerances for lead-acid batteries Dimensional tolerances of rubber and plastic parts (hereinafter referred to as dimensional tolerances). This standard applies to tolerances for injection molded plastic parts and compression molded rubber parts. Code, grade, numerical value and labeling of dimensional tolerances 2 2.1 The tolerance grade of dimension tolerances is divided into 7 levels (levels 1 to 7). See Table 1 for values ??at each level. The upper and lower deviations of the basic dimensions can be allocated according to the design requirements For example: the basic size is 13, the tolerance level is level 4, the tolerance value is 0.50, the upper and lower deviations can be allocated as 13±0:, 13±0.25, 13-8.5, 13+9.”, etc. Table 1 Tolerance, limit deviation level Dimensional section >3 3~6 6~~10 10~~14 14~18 1824 2430 30--40||tt ||40~50 5065 65~~80 80~100 100~120 120~140 140 ~160 160~180 180~200 200225 0.09 0.12 0.14 0.16|| tt||0.18 0.20 0.22 0.24 0.26 0.28 0.31 0.34||tt| |0.36 0.38 0.40 0.42 0.44 0.46 0.13 0.18 0.22 0.25 0.28 0.31 0.34 0.37 0.40 0.43 0.48|| tt||0.52 0.57 0.60 0.64 0.67 0.70 0.72 Ministry of Machinery Industry 1993- 08-21Approved 408 0.18 0.25 0.31 0.35 0.40 0.44||tt| |0.48 0.52 0.56 0.60 0.68bzxz.net 0.73 0.80 0.84 0.90 0.95 0.99 1.02 4 Tolerance value 0.26 0.36 0.44| |tt||0.50 0.56 0.62 0.68 0.74 0.80 0.86 0.96||tt ||1.03 1.14 1.20 1.28 1.34 1.40 1.44 5 0.37 0.51 0.62 0.71 0.79 0.88 0.96 1.04 1.13| |tt||1.21 1.36 1.47 1.61 1.70 1.80 1.89 1. 98| |tt||2.03 6 0.52 0.72 0.88 1.00 1.12 1.23||tt ||1.36 1.48 1.60 1.72 1.92 2.07 2.28 2.40 2.56 2.67 2.80 2.88 0.73 1.02 1.24 1.41 1.58| |tt||1.75 1.92 2.09 2.26 2.43 2.71 2.93 3.22||tt ||3..39 3.61 3.78 3.96 4.07 8 ±0.46 ±0.64 ±0.78 ±0.88 ±0.99 ±1.10 ±1.21 ±1.32 ±1.42| |tt||±1.53 ±1.71 ±1.84 ±2.01 ±2.13 ±2.26 ±2.36|| tt||±2.49 ±2.53 9 Limit deviation ±0.58 ±0.80 ±0.98||tt| |±1.12 ±1.25 ±1.38 ±1.52 ±1.66 ±1.79 ±1.92 ±2.15 ±2.32 ±2.52 ±2.65 ±2.82 ±2.95 ±3.14 ± 3.18 mm 10 11 ±0.68 ±0.94 ±1.27 ±1.40||tt ||±1.57 ±1.74 ±1.91 ±2.08 ±2.25 ±2.42 ±2.71||tt| |±2.92 ±3.14 ±3.31 ±3.53 ±3.70 ±3.85 ±4.02 1993-10-01 Implementation Size segment 225~250 250~280 280~315 315~355 355~400 400-150 450~500 500~~560 560~630 630-710 710 ~800 800~900 900~1000 1000~~1250 0.48 0.50 0.52 0.55 0.58 0.61 0.64 0.67 0.70 0.74 0.77 0.81| |tt||0.86 0.93 0.75 0.79 0.82 0.86 0.90 0.95||tt ||0.99 1.04 1.10 1.15 1.21 1.27 1.34 1.44 1.06 1.12 1.16 1.21 1. 27 1.34 1.40 1.47 1.56 1.63 1.71 1.80 1.89| |tt||2.04 JB/T6766—1993 表1(完) 公差、公差凯店电影 6 公差所作|| tt||1.50 1.58 1.64 1.72 1.80 1.90 1.98 2.08||tt| |2.20 2.30 2.42 2.53 2.68 2.88 2.12 2.23 2.31 2.43 2.54 2.68 2.80 2.94 3.11 3.25 3.42|| tt||3.59 3.79 4.07 3.00 3.16 3.27 3.44 3.60||tt| |3.80 3.96 4.15 4.39 4.60 4.83 5.07 5.36 5.76 2.2未注公差化学的公差电影图像3级。,见表1中8~10级。 4.24 4.46 4.64||tt| |4.86 5.08 5.36 5.60 5.87 6.22 6.50 6.83 7.18 7.57 8.13 ±2.65 ±2.79 ±2.92 ±3.06 ±3.18||tt ||±3.35 ±3. 49 ±3.67 ±3.98 ±4.06 ±4.27 ±4.46 4.73 ±5.08| tt| tt||±4.37 ±4.59 ±8.86 ±5.08 ±5.34 ±5.61 ±5.91||tt ||±6.35 梦注时用公差电影号注明。 For example: 未注公差利用的公差电影的8级的公差电影的JB/T6766—1993。常用materials制件公差电影选用 常用materials制件公差电影可电影电影电影电影电影选用,见表2表2 常用materials名行 acrylonitrile-丁二质质共聚物||tt| |acrylonitrile-鳨质共聚物 聚自质(高了作) 聚自质(高源了) 聚閄质 聚呄至 聚氯质(自) 玻璃 手机设计: materials代号 ABS AS HDPE LDLE.下载起草人吴申南。 公差电影 1~4 24 3~5 4~6 2~4 ,. 3~5 5~7 5~7 mm 10 ±4.14 ±4.36 ±4.56 ±4.86 ±4.97 ±5.04 ±5.46 ±5.59 ± 6.07 ±6.35 ±6.70 ±7.01 ±7.39 ±7.94 409 35 Use the tolerance grade number when marking. For example: the tolerance level of dimensions without tolerances is level 8 in JB/T6766-1993. Selection of tolerance levels of commonly used materials Tolerance levels of commonly used materials can be selected according to the production level of the enterprise, see Table 2 Table 2 Common material names Acrylonitrile-butadiene Ethylene copolymer Acrylonitrile-styrene copolymer Polyethylene (high density) Polyethylene (low density) Polystyrene Polypropylene Polyvinyl chloride (soft) Rubber Additional instructions: Material code ABS AS||tt| |HDPE LDLE PS PP PVC This standard is proposed and managed by the Shenyang Battery Research Institute of the Ministry of Machinery Industry. This standard is drafted by Shenyang Battery Research Institute. The main drafter of this standard is Wu Shennan. Tolerance level 1~4 24 3~5 4~6 2~4,. 3~5 5~7 5~7 mm 10 ±4.14 ±4.36 ±4.56 ±4.86 ±4.97 ±5.04 ±5.46 ±5.59 ±6.07| |tt||±6.35 ±6.70 ±7.01 ±7.39 ±7.94 409 35 Use the tolerance grade number when marking. For example: the tolerance level of dimensions without tolerances is level 8 in JB/T6766-1993. Selection of tolerance levels of commonly used materials Tolerance levels of commonly used materials can be selected according to the production level of the enterprise, see Table 2 Table 2 Common material names Acrylonitrile-butadiene Ethylene copolymer Acrylonitrile-styrene copolymer Polyethylene (high density) Polyethylene (low density) Polystyrene Polypropylene Polyvinyl chloride (soft) Rubber Additional instructions: Material code ABS AS||tt| |HDPE LDLE PS PP PVC This standard is proposed and managed by the Shenyang Battery Research Institute of the Ministry of Machinery Industry. This standard is drafted by Shenyang Battery Research Institute. The main drafter of this standard is Wu Shennan. Tolerance level 1~4 24 3~5 4~6 2~4,. 3~5 5~7 5~7 mm 10 ±4.14 ±4.36 ±4.56 ±4.86 ±4.97 ±5.04 ±5.46 ±5.59 ±6.07| |tt||±6.35 ±6.70 ±7.01 ±7.39 ±7.94 409 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.