欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ASTM D3851-2007 Standard Specification for Urethane Microcellular Shoe Soling Materials《氨基甲酸乙酯微孔鞋底材料的标准规范》.pdf

    • 资源ID:515634       资源大小:61.64KB        全文页数:3页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ASTM D3851-2007 Standard Specification for Urethane Microcellular Shoe Soling Materials《氨基甲酸乙酯微孔鞋底材料的标准规范》.pdf

    1、Designation: D 3851 07Standard Specification forUrethane Microcellular Shoe Soling Materials1This standard is issued under the fixed designation D 3851; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n

    2、umber in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers urethane microcellular materi-als for shoe soling applications. It provides physical propertyrequirements and

    3、 identifies test methods for determining thosespecific properties.1.2 SI units are to be regarded as the preferred units ofmeasurements for values. The inch-pound values in bracketscan be used if there is an agreement between the contractualparties.NOTE 1There is no known ISO equivalent to this stan

    4、dard.2. Referenced Documents2.1 ASTM Standards:2D 412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD 624 Test Method for Tear Strength of ConventionalVulcanized Rubber and Thermoplastic ElastomersD 792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Pla

    5、stics by DisplacementD 1052 Test Method for Measuring Rubber DeteriorationCut Growth Using Ross Flexing ApparatusD 1622 Test Method for Apparent Density of Rigid CellularPlasticsD 1938 Test Method for Tear-Propagation Resistance(Trouser Tear) of Plastic Film and Thin Sheeting by aSingle-Tear MethodD

    6、 2240 Test Method for Rubber PropertyDurometerHardnessD 3489 Test Methods for Microcellular Urethane Materials3. Classification3.1 This specification covers three grades of microcellularurethane materials that may be selected for use according toabrasion resistance, cut-growth resistance, and other

    7、physicalproperties. The grades are classified as Grade 1, Grade 2, andGrade 3.4. Ordering Information4.1 Any product represented as complying with this speci-fication shall meet all the requirements listed herein for itsparticular classification.5. Physical Requirements5.1 The material shall conform

    8、 to requirements for physicalproperties prescribed in Table 1.6. Test Methods6.1 The physical tests shall be in accordance with TestMethod D 3489.7. Inspection7.1 Inspection of the material shall be agreed upon inwriting between the purchaser and the supplier as part of thepurchase contract.7.2 Test

    9、ing for conformance to requirements shall be donein accordance with this specification and Test Methods D 3489.8. Retest and Rejection8.1 If any failure occurs, the materials may be retested toestablish conformity in accordance with agreement betweenthe purchaser and the seller.9. Packaging, Marking

    10、, and Labeling9.1 PackagingThe material shall be packed in standardcommercial containers, so constructed as to ensure acceptanceby common or other carriers for safe transportation at thelowest rate to the point of delivery, unless otherwise specifiedin the contract or order.9.2 MarkingThe shipping c

    11、ontainer shall be marked withthe name, type, and quality of material in accordance with thecontract or order under which the shipment is made. Theshipping container shall also be marked with the name of themanufacturer and the contract or order number.9.3 LabelingIn order that purchasers may identif

    12、y prod-ucts complying with all requirements of this specification,producers choosing to produce such products in conformance1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.22 on CellularMaterials - Plastics and Elast

    13、omers.Current edition approved Nov. 1, 2007. Published November 2007. Originallyapproved in 1980. Last previous edition approved in 2003 as D 3851 97(2003)e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of A

    14、STMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.with this voluntary specification may include a statement inconjunction with their name

    15、and address on labels, invoices,sales literature, and the like. The following statement issuggested.9.3.1 “This product conforms to all the requirements forGrade _ established in ASTM Standard SpecificationD 3851. Full responsibility for conformance of this productwith the standard is assumed by (na

    16、me and address ofconverter or distributor).10. Keywords10.1 footwear; microcellular; polyurethane; shoe; shoe sol-ing; sole; urethaneAPPENDIX(Nonmandatory Information)X1. METHODS FOR DETERMINING MATERIAL SHRINKAGEX1.1 RationaleX1.1.1 Any material shrinkage has the potential to affectprocessing (such

    17、 as ease of removal of parts from molds) andthe finished parts dimensions. Minimum and maximum re-quirements for shrinkage shall be agreed on between thepurchaser and the supplier. Two examples of procedures formeasuring that material shrinkage are given below.X1.2 Procedure AX1.2.1 Measure the leng

    18、th of the cavity of the mold to thenearest 0.5 mm or 0.02 in. Make the measurement with themold at room temperature.X1.2.2 Mold at least three sound test parts from the materialto be tested under such conditions of pressure, temperature,flow rates, time, etc., as the manufacturer and the purchaserma

    19、y agree are suitable for the material.X1.2.3 After removal from the mold, allow the parts to coolto room temperature before being measured. The period ofstorage for initial molding shrinkage shall be 2 6 0.25 h.Measure the length of each part to the nearest 0.5 mm or 0.02in. Measure the parts again

    20、not less than 20 nor more than 24h to obtain the “24-h shrinkage,” and again not less than 40 normore than 48 h after molding, in order to determine the “48-h”or “normal” mold shrinkage.X1.2.4 Calculate the percent shrinkage by subtracting thedimension of the specimen from the corresponding dimensio

    21、nof the mold cavity in which it was molded, multiply by 100,and divide the difference by the length of the mold cavity.X1.2.5 Repeat the initial, 24-h, and 48-h shrinkage ex-pressed in percent and each representing the mean of valuesobtained on three or more specimens.X1.3 Procedure BX1.3.1 After re

    22、moval form the mold, allow the part andmold to cool to room temperature. The period of cooling shallbe 2 6 0.25 h.X1.3.2 Measure the length of the cavity of the mold to thenearest 0.02 mm or 0.001 in.X1.3.3 Measure the length of the part to the nearest 0.02mm or 0.001 in.TABLE 1 Physical Property Re

    23、quirements on Polyurethane Shoe SystemsPropertyGradeASTMMethod123DensityAAAD 792or D 1622Tensile strength, min, MPa psi 4.9 700 3.5 500 2.8 400 D 412Ultimate elongation, min, % 300 275 250 D 412Tear, Die C, min, kN/m lbf/in. 22.0 125 22.0 125 17.5 100 D 624Tear, min, kN/m lbf/in. 11.5 65 7.0 40 4.4

    24、25 D 1938Hardness, Shore A DurometerAAAD 2240Cut-growth resistance, minimum cycles at: D 105220F0F75F30 00075 000150 00010 00030 00075 00010 00020 00050 000Taber abrasion (wear index), H-18 wheel, 1000 g, 1000 cycles 100 200 300 D 3489AAs agreed upon between the purchaser and the seller.D3851072X1.3

    25、.4 Material ShrinkageCalculate the percent change as follows:% change in length 5Lm LpLm3 100 (X1.1)where:Lm= length of mold at room temperature, andLp= length of molded part at room temperature.ASTM International takes no position respecting the validity of any patent rights asserted in connection

    26、with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible te

    27、chnical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consider

    28、ation at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr

    29、Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D3851073


    注意事项

    本文(ASTM D3851-2007 Standard Specification for Urethane Microcellular Shoe Soling Materials《氨基甲酸乙酯微孔鞋底材料的标准规范》.pdf)为本站会员(testyield361)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开