含有磁石的玩具ppt课件.ppt

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1、Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,1,MAGNETS IN TOYS含有磁石的玩具,Prepared By: P. W. ChanDate: Oct., 2007,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,2,MAGNETS IN TOYS,PROBLEM OF MAGNETS IN TOYS 磁石在玩具中的问题The Hazard 危险When small, powerful mag

2、nets are swallowed separately, they can attract across intestinal walls and produce perforations, infection and death. 当细小强力的磁铁被分别吞下, 将会透过肠内壁相吸而产生穿孔,感染或死亡.From the summer of 2005, there were at least 11 incidents of intestinal perforation due to magnets in toys. 自从2005年夏季以来,已经至少有11个肠道穿孔案例是由玩具中的磁石引起.

3、Analysis of incident data revealed that the magnets involved in the incidents were 分析数据显示事件中涉及的磁石是:Powerful, rare-earth magnets of neodymium, iron, boron construction (NIB).强力的NIB磁石.The magnets were small and easily swallowable. 细小而容易吞下的磁石.,Confidential - Do Not Distribute 2006 Mattel, Inc. All Righ

4、ts Reserved.,3,MAGNETS IN TOYS,HOW THE MARKET REACT市场上的反应The CPSC issues a safety alert (美国)消费品安全委员会发出安全警告.ASTM workgroup using the incident data, date analysis, expert opinions and other information to determine the magnet requirements. 美国材料实验协会的工作小组就事件数据,数据分析及专家意见去确定磁石的要求.French market required fo

5、llowing marking on toy or package 法国市场要求玩具或包装上有以下标签 Attention ! Risque de lesions digestives graves si des aimants sont avales ! European standards body CEN has established a taskgroup for magnets. This taskgroup will develop a standard for Europe for magnets that eventually be included in EN 71-1.

6、欧洲标准团体CEN已经成立专责小组负责磁石问题. 这个专责小组将会为欧洲制订磁石标准并纳入EN 71-1.,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,4,MAGNETS IN TOYS,CURRENT STANDARD (ASTM F963-07)现行标准Magnets with the specified size and strength should be restricted. 指定尺寸和强度的磁石会被限制使用.Strength : Flux index 50 KG2.mm2 强度:磁

7、通系数50 KG2.mm2Flux index Flux density2 x Pole surface area, where Flux Density is in kilo Gauss (kG) and Pole surface area is in mm2磁通系数 磁通密度2 x 磁极表面积, 磁通密度单位千高斯(kG), 面积单位是平方厘米(mm2)Size: Not fit entirely inside the following gauges 尺寸:不能完全落入以下基子.,Confidential - Do Not Distribute 2006 Mattel, Inc. All

8、 Rights Reserved.,5,MAGNETS IN TOYS,CURRENT STANDARD (ASTM F963-07) 现行标准,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,6,MAGNETS IN TOYS,COMING DRAFT OF ASTM F963 草议中的ASTM F963版本Stay with the strength requirement, but change the size limitation to not fit entirely inside th

9、e small part cylinder. 保留强度要求,但改变尺寸的限制, 不能 完全落入小物体基子中,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,7,MAGNETS IN TOYS,POSSIBLE ALTERNATIVE IN TOY DESIGN 玩具设计中可能的选择 Avoid the use of magnet 避免磁石的使用,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,8,MAGN

10、ETS IN TOYS,POSSIBLE ALTERNATIVE IN TOY DESIGN 玩具设计中可能的选择Enlarge the component so that it cannot fit into small part cylinder on as received stage. 加大部件使其在常态不 能落入指定的小物体基 子内.,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,9,MAGNETS IN TOYS,POSSIBLE ALTERNATIVE IN TOY DESIGN 玩

11、具设计中可能的选择Use a reliable method to ensure the magnet wont exposure after use and abuse tests 用可靠的方法保证磁石在使用和滥用测试后不会外露.,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,10,MAGNETS IN TOYS,SUGGESTED MANUFACTURING CONTROL 建议的生产控制Qualify each retaining system independently by the us

12、e and abuse tests such as Impact test, Torque and Tension test, or Compression test. 通过使用和滥用测试单独地验证每一个保护系统, 例如冲击测试,扭力测试和拉力测试或压力测试.Test the product to failure and use statistical tools to determine the probability of complying with the requirement. 将产品测试至极限并使用统计工具来确定符合要求的概率.Continuous monitor the manufacturing stability by verify the quality of production sample in hourly basis and use control-chart to ease for monitoring. 通过每小时的抽样方法,持续监察生产的稳定性及质量并使用控制图表以方便日后的生产管理.,Confidential - Do Not Distribute 2006 Mattel, Inc. All Rights Reserved.,11,Q&A, Thank you,MAGNETS IN TOYS,