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

    BS ISO 6123-2-2015 Rubber or plastics covered rollers Specifications Surface characteristics《橡胶或塑料涂层辊子 规格 表面特性》.pdf

    • 资源ID:587694       资源大小:1.08MB        全文页数:16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。

    BS ISO 6123-2-2015 Rubber or plastics covered rollers Specifications Surface characteristics《橡胶或塑料涂层辊子 规格 表面特性》.pdf

    1、BSI Standards PublicationRubber or plastics covered rollers SpecificationsPart 2: Surface characteristicsBS ISO 6123-2:2015National forewordThis British Standard is the UK implementation of ISO 6123-2:2015.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/73, Industrial

    2、 rubber products.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Publishe

    3、d by BSI Standards Limited 2015ISBN 978 0 580 89019 2ICS 83.140.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2015.Amendments/corrigenda issued sin

    4、ce publicationDate Text affectedBRITISH STANDARDBS ISO 6123-2:2015 ISO 2015Rubber or plastics covered rollers Specifications Part 2: Surface characteristicsCylindres revtus de caoutchouc ou de plastique Spcifications Partie 2: Caractristiques de surfaceINTERNATIONAL STANDARDISO6123-2Third edition201

    5、5-12-01Reference numberISO 6123-2:2015(E)BS ISO 6123-2:2015ISO 6123-2:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

    6、or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8

    7、 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 6123-2:2015ISO 6123-2:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Surface quality 24.1 General . 24.2 Grades . 25 Surface finish 3

    8、5.1 Methods of surface treatment Terms and classification 35.2 Description by surface treatment Types . 35.2.1 Type 1 Polished finish 35.2.2 Type 2 Fine grinding finish 35.2.3 Type 3 Standard grinding finish 35.2.4 Type 4 Turned finish . 35.2.5 Type 5 Unground finish 45.2.6 Type S Special treatment

    9、. 45.3 Characterization by surface roughness . 45.3.1 Requirement 45.3.2 Method of testing . 45.3.3 Expression of results 65.3.4 Repeatability and reproducibility . 6Annex A (informative) Relation between surface treatment and surface roughness . 7 ISO 2015 All rights reserved iiiContents PageBS ISO

    10、 6123-2:2015ISO 6123-2:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interest

    11、ed in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Co

    12、mmission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents

    13、 should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible fo

    14、r identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the c

    15、onvenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Forew

    16、ord - Supplementary informationThe committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 4, Products (other than hoses).This third edition cancels and replaces the second edition (ISO 6123-2:1988), of which it constitutes a minor revision to update the nor

    17、mative references.ISO 6123 consists of the following parts, under the general title Rubber or plastics covered rollers Specifications: Part 1: Requirements for hardness Part 2: Surface characteristics Part 3: Dimensional tolerancesiv ISO 2015 All rights reservedBS ISO 6123-2:2015ISO 6123-2:2015(E)In

    18、troductionCovered rollers are cylindrical cores, generally of metal, with a cover of rubber or plastics or a particular use. They are manufactured in a wide variety of sizes and hardness grades depending on the intended use. ISO 2015 All rights reserved vBS ISO 6123-2:2015Rubber or plastics covered

    19、rollers Specifications Part 2: Surface characteristics1 ScopeThis part of ISO 6123 establishes a classification of rubber or plastics covered rollers according to surface quality or imperfections and surface finish. A test method for the determination of surface roughness is also described.2 Normati

    20、ve referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) app

    21、lies.ISO 3274, Geometrical Product Specifications (GPS) Surface texture: Profile method Nominal characteristics of contact (stylus) instrumentsISO 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface textureISO 23529, Rubbe

    22、r General procedures for preparing and conditioning test pieces for physical test methods3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1arithmetical mean deviation of the profileRaarithmetical mean of the absolute values of the profile departur

    23、es within the sampling length, lRlyx xlad=10or approximately Rnyiina=11where n is the number of discrete profile deviations.Note 1 to entry: The values of Rain practice are determined within the evaluation length which includes several sampling lengths. According to ISO 3274, the sampling length is

    24、equal to the cut-off.3.2ten point height of irregularitiesRzaverage value of the absolute values of the heights of five highest profile peaks and the depths of five deepest profile valleys within the sampling lengthRyyziiii=+=pv15155INTERNATIONAL STANDARD ISO 6123-2:2015(E) ISO 2015 All rights reser

    25、ved 1BS ISO 6123-2:2015ISO 6123-2:2015(E)whereypiis the height of the ith highest peak profile;yviis the depth of the ith deepest profile valley.Note 1 to entry: Depending on the shape of the profile, in certain cases, a problem arises associated with the lack of a number of profile peaks and valley

    26、s and/or the super-imposing of waviness on the roughness.4 Surface quality4.1 GeneralThe manufacturing process and the raw materials used in the manufacture of rubber or plastics covered rollers may cause sporadic imperfections, in the form of holes and foreign matter, in the surface of the roller c

    27、overs. The number, size and location of permissible surface imperfections shall be agreed between the interested parties.The type of surface finish (see Clause 5) shall be observed when selecting the grade of imperfections.4.2 GradesThe rollers may be graded according to the permissible numbers and

    28、sizes of imperfections as follows:Grade x/yThis means that imperfections up to and including x mm2in area are acceptable; not more than two imperfections each having an area between x mm2and y mm2inclusive are permissible in any 0,1 m2of cover area; roller covers showing imperfections larger than y

    29、mm2in area shall be rejected.The values of x and y shall be agreed between the interested parties.If no requirements for surface quality are necessary, the rollers shall be designated “grade N”.EXAMPLE A medium grade of surface quality can be described by the designation:Grade 0,5/2This means that i

    30、mperfections up to and including 0,5 mm2in area are acceptable; not more than two imperfections each having an area be tween 0,5 mm2and 2 mm2inclusive are permissible in any 0,1 m2of cover area; roller covers showing imperfections larger than 2 mm2in area shall be rejected.If agreement between the i

    31、nterested parties, or special provisions in national standard, are intended, the required quality should be chosen from the grades given below: grade 0,1/0,3 grade 0,3/1 grade 0,5/2 grade 2/52 ISO 2015 All rights reservedBS ISO 6123-2:2015ISO 6123-2:2015(E) grade 5/10 grade N5 Surface finishThe surf

    32、ace finish of a roller cover is dictated by the intended use. It shall be characterized either as a type of surface treatment (see 5.1) or as the maximum value of surface roughness (see 5.3), as agreed between the interested parties.5.1 Methods of surface treatment Terms and classificationTable 1 sh

    33、ows the generally employed principal methods of surface treatment, by means of which the roller surfaces are classified (see 5.2). The type of surface finish, and the structure or texture which can be achieved, are dependent upon the hardness and composition of the roller cover.Table 1 Surface finis

    34、hesType Surface treatment Sequence of treatment12345PolishingGrinding, fineGrinding, standardTurningUnground finish5.2 Description by surface treatment TypesThe surface structures described for Types 1 to 4 are produced by regular treatments and have a roughness without preferential direction.The ty

    35、pe required shall be chosen by agreement between the interested parties.5.2.1 Type 1 Polished finishIn soft elastomers, the surface is velvet-like; in hard rubber (ebonite) or plastics, it is smooth.Grinding marks and scratches shall not be visible to the naked eye. Sporadic grinding blemishes are p

    36、ermissible. Not all qualities permit this finish.5.2.2 Type 2 Fine grinding finishSlight grinding and feed marks are visible to the naked eye, but are not noticeable when touching the roller.5.2.3 Type 3 Standard grinding finishGrinding marks and grinding feed are visible and just noticeable when to

    37、uching the roller.5.2.4 Type 4 Turned finishThe surface is solely turned, with as little feed of the turning tool as practicable. Turning grooves are visible and noticeable when touching the roller. ISO 2015 All rights reserved 3BS ISO 6123-2:2015ISO 6123-2:2015(E)5.2.5 Type 5 Unground finishThe sur

    38、face of the roller is without any treatment or dressing, for example a cloth-marked roller surface as it comes from the vulcanization process or a rough-cast plastics-covered roller.5.2.6 Type S Special treatmentThis applies to surface finishes other than those in 5.2.1 to 5.2.5, for example a fine-

    39、cast plastics-covered roller, or to a finish for specific applications with a special structure as defined by agreement between the interested parties.5.3 Characterization by surface roughness5.3.1 RequirementThe surface finish of rubber or plastics covered rollers shall be quantitatively expressed

    40、in one of the following units, as agreed between the interested parties:a) arithmetical mean deviation of the profile Ra(see 3.1), in micrometers;b) ten point height of irregularities Rz(see 3.2), in micrometers.The roughness of the cover surface shall appear visually uniform.5.3.2 Method of testing

    41、5.3.2.1 Test instrument: Profile metera) GeneralThe determination of surface roughness shall be carried out by using a contact profile meter, system M, as specified in ISO 3274. Unless specified below, the basic parameters and metrological characteristics of the instrument shall be those specified i

    42、n ISO 3274.The instrument shall be equipped with a suitable support for use on curved surfaces.The contact stylus shall be calibrated at the indicated measurement values, for example by use of a reference surface of known roughness.b) StylusStylus angle: 1,57 rad (90)Radius of stylus tip: 5 m max.St

    43、atic measuring force at mean level of stylus: 4 mN max.c) Sampling length, evaluation length and cut-offThe sampling length l and the evaluation length lnshall be as specified in ISO 4288.NOTE For rubberor plastics covered rollers, the following values of cut-off Bsampling length l and evaluation le

    44、ngth lnare encountered in practice.4 ISO 2015 All rights reservedBS ISO 6123-2:2015ISO 6123-2:2015(E)Table 2 Parameter for specified RaRamBmmlmmlnmm 0,1 up to 2 2 up to 100,82,50,82,54,012,5Table 3 Parameter for specified RzRzmBmmlmmlnmm 0,5 up to 10 10 up to 500,82,50,82,54,012,55.3.2.2 Test condit

    45、ionsa) TemperatureThe test shall be carried out, whenever possible, at a standard temperature (23 C 2 C or 27 C 2 C) in accordance with ISO 23529. The covered roller shall be brought to the test temperature prior to testing to ensure temperature equilibrium.The test temperature shall be recorded.b)

    46、Cover surfaceBefore measurements are made, the cover surface shall be cleaned carefully to remove dust and other contaminants which have collected during storage .The cleaning shall not damage the surface.NOTE Wiping the surface with isopropyl alcohol has been found suitable.5.3.2.3 Test procedurea)

    47、 Measuring areasFor rollers having a cover up to 2,5 m long, the roughness shall be measured in five areas: three areas, each 120 apart, around the circumference in the middle of the roller; one area at each end, at a distance of 10 % of the cover length from the end.For rollers having a cover over

    48、2,5 m long, the roughness shall be measured in nine areas: three areas, each 120 apart, around the circumference in the middle of the roller; three areas at each end, each 120 apart, around the circumference, and each at a distance of 10 % of the cover length from the end.b) OperationFirmly locate t

    49、he roller to be tested with its longitudinal axis horizontal and with the area in which the surface roughness is to be measured uppermost. Place the measuring equipment on the roller and adjust the pick-up so that the correct static measuring force at the mean level of the stylus is exerted on the surface.Make one measurement in each measuring area with the stylus traverse line parallel to the axis of the roller. ISO 2015 All ri


    注意事项

    本文(BS ISO 6123-2-2015 Rubber or plastics covered rollers Specifications Surface characteristics《橡胶或塑料涂层辊子 规格 表面特性》.pdf)为本站会员(刘芸)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