JASO T203-1985 英文版 摩托车轻合金车轮.pdf
《JASO T203-1985 英文版 摩托车轻合金车轮.pdf》由会员分享,可在线阅读,更多相关《JASO T203-1985 英文版 摩托车轻合金车轮.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、日本汽车标准_JASO T203-1985 英文版 摩托车轻合金车轮_JAPANESE AUTOMOBILE STANDARD JASO T 203-85 Light Alloy Wheels for Motorcycles 1. Scope 3. Types This Standard specifies light alloy wheels for motor- cycles (including motorcycles equipped with sidecars and motor driven cycles) (hereinafter referred to as light all
2、oy wheels). Remark: In this standard, units and numerical values are based on SI (International System of Units), while units and numerical values given in are customary units system, and are given for reference. The types of the light alloy wheels shall be as follows: Light alloy wheels of which th
3、e rims and spokes (or discs) are molded in single units. Light alloy wheels of which the rims are made of light alloy, and the spokes (or discs) of light alloy or steel; which are then assembled. Wire (1) Unit construction type (2) Composite construction type spoke type shall, however, be excluded.
4、2. Purpose This standard aims to establish and standardize the quality of light alloy wheels in order to ensure driving 4. Nomenclature of Each Part safety. The nomenclature of each part shall be pursuant to Fig. 1 (shown as an example). Applicable Standards: JASO C 603-80 JIS D 4203 JIS D 4215 JIS
5、H 0321 JIS H 0522 JIS H 4000 JIS H 4100 JIS H 4140 JIS H 4201 JIS H 4204 JIS H 5202 JIS H 5203 JIS H 5302 JIS H 5303 JIS Z 2343 Steel Disc Wheels for Automobiles Dimensions of Tires for Motorcycles and Scooters Rims for Motorcycles and Scooters General Rules for Inspection of Nonferrous Metal Materi
6、als Methods of Radiographic Test and Classification of Radiographs for Aluminium Castings Aluminium and Aluminium Alloy Sheets and Plates, Strip and Coiled Sheets Aluminium and Aluminium Alloy Extruded Shapes Aluminium and Aluminium Alloy Forgings Magnesium Alloy Sheet and Plate MagnesiumAlloy Extru
7、ded Shapes Aluminium Alloy Castings Magnesium Alloy Castings Aluminium Alloy Die Castings Magnesium Alloy Die Castings Methods for Liquid Penetrant Testing and Classification of Indication 1 JAS0 T 203-85 Fig. 1 Unit Construction Type 2 w Composite Construction Type of each part Rim diameter Valve h
8、ole JAS0 T 203-85 Lateral deflection 1 .o I 5. Performance 1.2 5.1 Durability Against Bending Moment After being subjected to at least IO5 cycles of the test according to 11.1, there shall be no evidence of harmful cracks, significant deformation or any abnor- mal looseness at joints. 5.2 Durability
9、 Against Radial Load After being subjected to at least 5x10 cycles of the test specified in 11.2, there shall be no evidence of harmful cracks, significant deformation or any abnor- mal looseness at joints of the light alloy wheel. 5.3. Impact Resistance After being subjected to the impact test in 1
10、1.3, there shall be no evidence of harmful cracks, significant deformation, any abnormal looseness at joints, or any sudden air leakage (l). Note: (I) Sudden air leakage shall mean the case when the case when the tire pressure drops by more than 50% in less than 30 sec. 5.4 Durability Against Tortio
11、nal Moment After being subjected to at least 10 cycles of the test according to 11.4, there shall be no evidence of harm- ful cracks, significant deformation or any abnormal looseness at joints. 5.5 Airtightness of Rims Regarding light alloy wheels for tubeless tires, pres- surized air supplied by t
12、he method described in 11.5 shall not leak out through the rim. 6. Dimensions 6.1 Profilesof Rims The dimensions of the profiles of the rims shall be pursuant to JIS D 4215 (Rims for Motorcycles and Scooters). 6.2 Circumference of Rim Bead Seats The circumferential dimensions of the rim bead seats s
13、hall be pursuant to JIS D 4215. 6.3 Deflections The maximum values of vertical and lateral deflections shall be as shown in Table. Table Unit: mm Com posi te Unit 7. Appearance (1) There shall be no cracks, pinholes, shrinkage cavities, scratches, etc. which may develop into harmful defects in terms
14、 of strength. (2) The tire mounting surface and the circum- ference of the valve hole of the rim shall not have such shapes and surface conditions as will harm the functions of the tire, tube, and valve. (3) Light alloy wheels for tubeless tires shall not have any defects, such as pinholes, which ar
15、e harmful for airtightness of the rims. 8. Materials The materials of the light alloy wheels shall be, in principle, pursuant to the following standards, and in cases of those made of magnesium alloy, rust proof- ing shall also be applied to the surfaces: JIS H 4000 (Aluminium and Aluminium Alloy Sh
16、eets and Plates, Strip and Coiled Sheets) or equivalents JIS H 4100 (Aluminium and Aluminium Alloy Extruded Shapes) or equivalents JIS H 4140 (Aluminium and Aluminium Alloy Forgings) or equivalents JIS H 4201 (Magnesium Alloy Sheet and Plate) or equivalents JIS H 4204 (Magnesium Alloy Extruded Shape
17、s) or equivalents JIS H 5202 (Aluminium Alloy Castings) or equi- valents JIS H 5203 (Magnesium Alloy Castings) or equi- valents JIS H 5302 (Aluminium Alloy Die Castings) or equivalents JIS H 5303 (Magnesium Alloy Die Castings) or eq uiva letn s 9. Heat Treatment Heat treatment shall be pursuant to t
18、he standards for materials prescribed in 8. 3 JAS0 T 203-85 IO. Mechanical Properties Mechanical properties shall be pursuant to the stand- ards for materials prescribed in 8. 11.1.3 Test Conditions The bending moment to be applied in 11.1.2 shall be determined by the following equation: M = Sm x p
19、x W x r Sm: Coefficient 0.7 p : Friction coefficient between tire and road 0.7 W : The maximum design load of any motorcycle tire which can be applied to the light alloy wheels concerned (pur- suant to JIS D 4203, etc.). In case of ensuring loads for a specific tire, W shall be the maximum design lo
20、ad of that tire. However, in the case when the wheel is restricted to limited vehicle (hereafter referred to as limited use), the maximum value of the static wheel reaction force of that vehicle shall be applicable. N (kgf) i- : In case of applying the maximum value of the maximum design load of the
21、 tire for motorcycles, the static loaded radius (pursuant to JIS D 4203, etc.) shall be applicable. In case of ensuring the load of a specific motorcycle tire, the static loading radius of the tire of the motor- cycle concerned shall be applicable. In case of a limited use, however, the maxi- mum va
22、lue of the static loading radius of the motorcycle tire designated to the vehicel may be applicable. m where, M : Bending moment Nam kgf-m 11. Tests I1 .I Rotation Bending Fatigue Test 11.1.1 Test Equipment The test equipment shall be so constructed that it is able to provide a constant bending mome
23、nt to the center of the light alloy wheel which rotates with a constant velocity. An example of such equipment is shown in Fig. 2. 1 1.1.2 Test Procedure The light alloy test wheel shall be fixed to a rotary disc of the tester at the wheel rim flange; a loading arm with sufficient rigidity shall be
24、attached to the wheel in the same method as the wheel is normally attached to a vehicle as shown in Fig. 2; and the wheel shall be rotated with a bending moment applied. Fig. 2 Fastening 4 JAS0 T 203-85 - 11 .I .4 Retest Retest shall be carried out in cases where abnormal changes occur in the test c
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- JASO T203 1985 英文 摩托车 合金 车轮