標準編號:	GB 5763-2018
中文名稱:	汽車用制動器襯片
英文名稱:	Brake linings for automobiles
中標分類:	Q69    其他非金屬礦制品
行業分類:	GB    國家標準
ICS分類:	43.040.40 43.040.40    制動系統 43.040.40
發布機構:	國家市場監督管理總局 國家標準化管理委員會
發布日期:	2018-11-19
實施日期:	2019-10-1
標準狀態:	valid
替代舊標準:	GB 5763-2008 汽車用制動器襯片
翻譯語言:	英文
文件格式:	PDF
中文字符數:	7000 字
翻譯價格(元):	260.0
交付時間:	付款后 1 個工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. The complete text of this standard is mandatory. This standard is developed in accordance with the rules given in GB/T 1.1-2009. It replaces GB 5763-2008 Brake linings for automobiles. The following changes have been made with respect to GB 5763-2008: ——“The provisions are mandatory” is changed to “the complete text of this standard is mandatory” (see Foreword; Foreword of Edition 2008); ——Normative references are modified (see clause 2; clause 2 of Edition 2008); ——Terms and definitions are modified completely (see clause 3; clause 3 of Edition 2008); ——Classification is deleted (see clause 4 of Edition 2008); ——“Technical requirements” is changed to “Basic requirements related to health and safety” (see clause 4; clause 5 of 2008 edition); ——Technical requirements for “appearance quality”, “dimensional deviation”, “impact strength”, “thermal expansion rate” and “compression strain” and their corresponding test methods are deleted (5.1, 5.2, 5.5, 5.6 and 5.7 as well as 6.1, 6.2, 6.4, 6.5, 6.6 and 6.7 of Edition 2008); ——Requirements for “limit of harmful ingredients” and their test methods are added (see 4.1, 5.1 and 5.2); ——Requirements for friction performance are changed from “coefficient of friction, tolerance and friction rate of appointed coefficient of friction at each test temperature of constant speed friction test” to “coefficient of friction at the normal temperature and at the high temperature of small sample bench test for drum linings used in vehicles of Categories M1, M2, N1, O1 and O2” and “operational coefficient of friction deviation and the like of drag test for friction performance of drum linings used in vehicles of Categories M3, N2, N3, O3 and O4 as well as for disk linings” and the test methods are changed correspondingly (see 4.2 and 5.3; 5.3 and 6.3 of Edition 2008); ——Requirements that "The shear strength of bonding rubber-based drum lining shall not be less than 1.0MPa at ambient temperature; lining area left on the shoe iron shall not be less than 70% after test” are added (see 4.3); ——Inspection rules are changed correspondingly (see clause 6; clause 7 of Edition 2008); ——Batching principle is changed from “the actually delivered linings of the same material and specification are regarded as a batch” to “the products are divided into three categories according to disc linings; drum linings used in vehicles of Categories M1, M2, N1, O1 and O2; and drum linings used in vehicles of Categories M3, N2, N3, O3 and O4. The actually delivered linings produced according to the same formula and process and in the same month are regarded as a batch” (see 6.2; 7.2.1 of Edition 2008); ——“the non-working surface of lining shall be printed with manufacturer's name or trademark” is changed to “the non-working surface of lining shall be printed with manufacturer's name (abbreviation) or trademark (code)” (see 7.1.1; 8.1.1 of Edition 2008); ——“There shall be appointed coefficient of friction printed” on the packaging box is changed to “drum linings used in vehicles of Categories M1, M2, N1, O1 and O2 shall also be marked with class code of coefficient of friction; drum linings used in vehicles of Categories M3, N2, N3, O3 and O4 and disc linings shall also be marked with appointed coefficient of friction” (see 7.1.2; 8.1.2 of Edition 2008). This standard was proposed by and is under the jurisdiction of the Ministry of Industry and Information Technology of the People's Republic of China. The previous editions of the standard are as follows: ——GB 5763-1986, GB 5763-1998 and GB 5763-2008. Brake linings for automobiles 1 Scope This standard specifies terms and definitions, basic requirements related to health and safety, test methods, inspection rules, marking, packaging, transportation and storage, etc. of brake linings for automobiles. It is applicable to brake linings for automobiles (hereinafter referred to as linings). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 5620 Road vehicles - braking of automotive vehicles and their trailers - Vocabulary GB/T 15089 Classification of power-driven vehicles and trailers GB/T 17469 Characteristics evaluation of brake linings for automobile - Small sample bench test method GB/T 22309 Road vehicles - Brake linings - Shear test procedure for disc break pad and drum brake shoe assemblies GB/T 23263 Determination of asbestos in products GB/T 34007 Road vehicles - Brake lining friction materials - Drag test method for friction performance JC/T 2268 Measurement of copper and other elements in brake friction materials 3 Terms and definitions For the purposes of this standard, the terms and definitions specified in GB/T 5620 and GB/T 15089 as well as the following ones apply. 3.1 coefficient of friction ratio of the tangential force (i.e. friction force) impeding the relative movement of two objects to the normal force acted on the object surface 3.2 coefficient of friction at the normal temperature μnormal temperature average of coefficient of friction at 4 temperatures, i.e. 93℃, 121℃, 149℃ and 204℃ in the second fade test of small sample bench test, see GB/T 17469 for details 3.3 coefficient of friction at the high temperature μhigh temperature average of coefficient of friction at 10 temperatures, i.e. 204℃ and 149℃ in the first recovery test, 232℃, 260℃, 288℃, 316℃ and 343℃ in the second fade test and 260℃, 204℃ and 149℃ in the second recovery test of small sample bench test, see GB/T 17469 for details 3.4 classification for coefficient of friction coefficient of friction, divided into 6 classes, i.e. C, D, E, F, G and H, in an order from small to large in small sample bench test, see GB/T 17469 for details. For drum linings used in in vehicles of Categories M1, M2, N1, O1 and O2, their coefficients of friction are expressed in class code alphabets, in which the first one represents the coefficient of friction at the normal temperature and the second one represents the coefficient of friction at the high temperature 3.5 operational coefficient of friction μoperational when the disc linings used in vehicles of Categories M1, M2, N1, O1 and O2 are subjected to drag test for friction performance, the average of coefficient of friction measured in the first braking operation of each braking cycle with test serial number of 3 and 4 in constant pressure mode or the average of coefficient of friction measured in the first braking operation of each braking cycle with test serial number of 3, 5 and 7 in constant torque mode, see GB/T 34007 for details 3.6 operational 1 coefficient of friction μoperational 1 when disc and drum linings used in vehicles of Categories M3, N2, N3, O3 and O4 are subjected to drag test for friction performance, the average of coefficient of friction measured in 5 braking operations with test serial number of 2 in constant pressure mode, see GB/T 34007 for details 3.7 operational 2 coefficient of friction μoperational 2 when disc and drum linings used in vehicles of Categories M3, N2, N3, O3 and O4 are subjected to drag test for friction performance, the average of coefficient of friction measured in 10 braking operations with test serial number of 10 in constant pressure mode, see GB/T 34007 for details 3.8 appointed coefficient of friction the value of operational coefficient of friction expressed in the drag test method for friction performance appointed by manufacturer of the lining, which depends on the formula and production process of the lining Disc linings used in in vehicles of Categories M1, M2, N1, O1 and O2 are expressed as PA + appointed coefficient of friction in constant pressure mode test of original sample method, PS + appointed coefficient of friction in constant pressure mode test of sampling method, MA + appointed coefficient of friction in constant torque mode test of original sample method and MS + appointed coefficient of friction in constant torque mode test of original sampling method. Disc and drum linings used in vehicles of Categories M3, N2, N3, O3 and O4 are expressed as PS + appointed operational 1 coefficient of friction/appointed operational 2 coefficient of friction 4 Basic requirements related to health and safety 4.1 Limit of harmful ingredients 4.1.1 Asbestos shall not be contained in the lining. 4.1.2 Other harmful elements in the lining shall not exceed the limits as specified in Table 1. Table 1 Name of harmful element Limits (mass fraction) % Cadmium ≤0.01 Hexavalent chromium ≤0.1 Lead ≤0.1 Mercury ≤0.1 4.2 Friction performance 4.2.1 Small sample bench test results of drum linings used in vehicles of Categories M1, M2, N1, O1 and O2 shall meet the following requirements: a) μnormal temperature shall not be less than 0.25 and shall meet the specified class. b) μhigh temperature shall not be less than 0.25 and shall meet the specified class. c) The coefficient of friction at any point of temperature range of 93℃ to 288℃ in the second fade and temperature range of 149℃ to 93℃ in the second recovery of 5 tests is not less than 0.15; and difference between the coefficients of friction at each temperature point and average of the five tests is no more than 20%. 4.2.2 Test results of the drag test for friction performance of disc linings used in vehicles of Categories M1, M2, N1, O1 and O2 shall meet the following requirements: a) μoperational is within ±15% of the appointed coefficient of friction; b) after the test, the lining shall be free from delamination or falling off. 4.2.3 Test results of the drag test for friction performance of disc and drum linings used in vehicles of Categories M3, N2, N3, O3 and O4 shall meet the following requirements: a) μoperational 1 and μoperational 2 are within ±15% of the appointed coefficient of friction respectively; b) after the test, the lining shall be free from delamination or falling off. 4.3 Shear strength 4.3.1 The shear strength of bonding resin-based drum lining shall not be less than 1.5MPa at ambient temperature.

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Basic requirements related to health and safety 5 Test methods 6 Inspection rules 7 Marking, packaging, transportation and storage

ICS 43.040.40 Q 69 中華人民共和國國家標準 GB 5763—2018 代替GB 5763—2008 汽車用制動器襯片 Brake linings for automobiles 2018—11—19發布 2019—10—01實施 國家市場監督管理總局 中國國家標準化管理委員會 發布 前言 本標準為全文強制。 本標準按照GB/T 1.1—2009給出的規則起草。 本標準代替GB 5763—2008《汽車用制動器襯片》。與GB 5763—2008相比，主要技術變化如下： ——將條文強制修改為全文強制(見本前言，2008年版的前言)； ——規范性引用文件有所改變(見第2章，2008年版的第2章)； ——術語和定義全部修改(見第3章，2008年版的第3章)； ——取消了分類(2008年版的第4章)； ——將“技術要求”修改為“涉及健康和安全的基本要求”(見第4章，2008年版的第5章)； ——取消了“外觀質量”“尺寸偏差”“沖擊強度”“熱膨脹率”“壓縮應變”的技術要求及其相應的試驗方法(2008年版的5.1、5.2、5.5、5.6、5.7及6.1、6.2、6.4、6.5、6.6、6.7)； ——增加了“有害成分限量”的要求及其試驗方法(見4.1、5.1、5.2)； ——將摩擦性能要求由“定速摩擦試驗的各個試驗溫度的摩擦系數、指定摩擦系數的允許偏差、磨損率”修改為“M1、M2、N1、O1、O2類車輛使用的鼓式襯片的小樣臺架試驗常溫和高溫摩擦系數等”和“盤式襯片及M3、N2、N3、O3、O4類車輛使用的鼓式襯片的摩擦性能拖曳試驗測試的工作摩擦系數偏差等”，試驗方法也相應作了修改(見4.2、5.3，2008年版的5.3、6.3)； ——增加了“粘結型橡膠基鼓式襯片在室溫下的剪切強度不得小于1.0 MPa，試驗后留在蹄鐵上的襯片的面積不得小于70％”的要求(見4.3)； ——檢驗規則作了相應修改(見第6章，2008年版的第7章)； ——將組批原則由“以同材質同規格的襯片的實際交貨量為一批”修改為“產品按盤式襯片、M1、M2、N1、O1、O2類車輛使用的鼓式襯片、及M3、N2、N3、O3、O4類車輛使用的鼓式襯片分成3類，每類產品以同配方同工藝同月份生產的襯片的實際交貨量為一批”(見6.2，2008年版的7.2.1)；將“襯片的非工作面上應印有制造廠名或商標”修改為“襯片的非工作面上應有制造廠名稱(簡稱)或商標(代號)”(見7.1.1，2008年版的8.1.1)； ——將包裝箱上“應印有指定摩擦系數”修改為“M1、M2、N1、O1、O2類車輛使用的鼓式襯片還應標有摩擦系數級別代號；盤式襯片和M3、N2、N3、O3、O4類車輛使用的鼓式襯片還應標有設定摩擦系數值”(見7.1.2，2008年版的8.1.2)。 本標準由中華人民共和國工業和信息化部提出并歸口。 本標準所代替標準的歷次版本發布情況為： ——GB 5763—1986、GB 5763—1998、GB 5763—2008。 汽車用制動器襯片 1 范圍 本標準規定了汽車用制動器襯片的術語和定義、涉及健康和安全的基本要求、試驗方法、檢驗規則、標志、包裝、運輸與貯存等。 本標準適用于汽車用制動器襯片(以下簡稱“襯片”)。 2規范性引用文件 下列文件對于本文件的應用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。 GB/T 5620道路車輛 汽車和掛車 制動名詞術語及其定義 GB/T 15089機動車輛及掛車分類 GB/T 17469汽車制動器襯片摩擦性能評價 小樣臺架試驗方法 GB/T 22309 道路車輛 制動襯片 盤式制動塊總成和鼓式制動蹄總成剪切強度試驗方法 GB/T 23263制品中石棉含量測定方法 GB/T 34007道路車輛 制動襯片摩擦材料 摩擦性能拖曳試驗方法 JC/T 2268制動摩擦材料中銅及其他元素的測定方法 3術語和定義 GB/T 5620和GB/T 15089界定的以及下列術語和定義適用于本文件。 3.1 摩擦系數 coefficient of friction 阻礙兩物體相對運動的切向力(即摩擦力)對作用到該物體表面的法向力之比。 3.2 常溫摩擦系數coefficient of friction at the normal temperature μ常溫 在小樣臺架試驗的第二次衰退試驗中，在93℃、121℃、149℃、204℃4個溫度點的摩擦系數的平均值。詳見GB/T 17469。 3.3 高溫摩擦系數coefficient of friction at the high temperature μ高溫 在小樣臺架試驗的第一次恢復試驗的204℃、149℃、第二次衰退試驗的232℃、260℃、288℃、316℃、343℃以及第二次恢復試驗的260℃、204℃、149℃，總共10個溫度點的摩擦系數的平均值。詳見GB/T 17469。 3.4 摩擦系數級別classification for coefficient of friction 在小樣臺架試驗中，將摩擦系數值從小到大分為C、D、E、F、G、H六級，詳見GB/T 17469。對于M1、M2、N1、O1、O2類車輛使用的鼓式襯片，其摩擦系數值用級別代號字母表示，第一個字母表示常溫摩擦系數值，第二個字母表示高溫摩擦系數值。 3.5 工作摩擦系數operational coefficient of friction μ工作 M1、M2、N1、O1、O2類車輛使用的盤式襯片進行摩擦性能拖曳試驗時，在恒壓力方式下試驗序號3、試驗序號4中每個制動循環的第1次制動運行測得的摩擦系數平均值，或在恒力矩方式下試驗序號3、試驗序號5、試驗序號7中每個制動循環的第1次制動運行測得的摩擦系數平均值。詳見GB/T 34007。 3.6 工作摩擦系數1 operational 1 coefficient of friction μ工作1 M3、N2、N3、O3、O4類車輛使用的盤式和鼓式襯片進行摩擦性能拖曳試驗時，在恒壓力方式下試驗序號2中5次制動運行測得的摩擦系數的平均值。詳見GB/T 34007。 3.7 工作摩擦系數2 operational 2 coefficient of friction μ工作2 M3、N2、N3、O3、O4類車輛使用的盤式和鼓式襯片進行摩擦性能拖曳試驗時，在恒壓力方式下試驗序號10中10次制動運行測得的摩擦系數的平均值。詳見GB/T 34007。 3.8 設定摩擦系數appointed coefficient of friction 由襯片的制造商設定的在摩擦性能拖曳試驗方法中表現出的工作摩擦系數值，取決于襯片的配方和生產工藝。 對于M1、M2、N1、O1、O2類車輛使用的盤式襯片，采用原樣法恒壓力方式測試表示為PA+設定摩擦系數值，采用取樣法恒壓力方式測試表示為PS+設定摩擦系數值，采用原樣法恒力矩方式測試表示為MA+設定摩擦系數值，采用取樣法恒力矩方式測試表示為MS+設定摩擦系數值。 對于M3、N2、N3、O3、O4類車輛使用的盤式和鼓式襯片，表示為PS+設定工作摩擦系數1/設定工作摩擦系數2。 4涉及健康和安全的基本要求 4.1 有害成分限量 4.1.1襯片中不得含有石棉。 4.1.2襯片中其他有害元素不得超過表1規定的限量要求。 表1 有害元素名稱 限量要求(質量分數) ％ 鎘 ≤0.01 六價鉻 ≤0.1 鉛 ≤0.1 汞 ≤0.1 4.2摩擦性能 4.2.1 M1、M2、N1、O1、O2類車輛使用的鼓式襯片的小樣臺架試驗結果應符合以下要求： a)μ常溫不低于0.25且符合所明示的級別； b)μ高溫不低于0.25且符合所明示的級別； c) 在5次試驗的第二次衰退93℃～288℃溫度段和第二次恢復149℃～93℃溫度段的任一點的摩擦系數不低于0.15；且各溫度點的摩擦系數值與其5次試驗的平均值之差不超過20％。 4.2.2 M1、M2、N1、O1、O2類車輛使用的盤式襯片的摩擦性能拖曳試驗方法測試結果應符合下列要求： a) μ工作在設定摩擦系數值的±15％的范圍內； b) 試驗結束后，襯片應無分層、掉塊等現象。 4.2.3 M3、N2、N3、O3、O4類車輛使用的盤式襯片和鼓式襯片的摩擦性能拖曳試驗方法測試結果應符合下列要求： a) μ工作1和μ工作2分別在其設定的工作摩擦系數值的±15％的范圍內； b)試驗結束后，襯片應無分層、掉塊等現象。 4.3 剪切強度 4.3.1 粘結型樹脂基鼓式襯片在室溫下的剪切強度不得小于1.5 MPa。 4.3.2粘結型橡膠基鼓式襯片在室溫下的剪切強度不得小于1.0 MPa，試驗后留在蹄鐵上的襯片的面積不得小于70％。 4.3.3 粘結型盤式襯片在室溫下的剪切強度不得小于2.5 MPa。 5試驗方法 5.1石棉含量的測定 石棉含量的測定按GB/T 23263進行。 5.2有害元素的測定 鎘、六價鉻、鉛、汞的測定按JC/T 2268進行。 5.3摩擦性能試驗 5.3.1小樣臺架試驗 M1、M2、N1、O1、O2類車輛使用的鼓式襯片的摩擦性能小樣臺架試驗按GB/T 17469進行。 5.3.2摩擦性能拖曳試驗 盤式襯片和M3、N2、N3、O3、O4類車輛使用的鼓式襯片的摩擦性能拖曳試驗按GB/T 34007進行。 5.4剪切強度試驗 剪切強度試驗按GB/T 22309進行。 6 檢驗規則 6.1 檢驗項目 每批產品出廠前應檢驗摩擦性能和剪切強度。當新產品投產定型或原材料發生改變時，還應檢驗產品中的有害成分。 6.2組批原則 產品按盤式襯片、M1、M2、N1、O1、O2類車輛使用的鼓式襯片、M3、N2、N3、O3、O4類車輛使用的鼓式襯片分成3類，每類產品以同配方同工藝同月份生產的襯片的實際交貨量為一批。當批量過大時，也可分成若干小批。 6.3 結果判定 按試驗方法規定的樣品數量在檢查批中隨機抽取樣本。每個樣本均符合本標準要求，則判定該批產品合格；若有任何一項不符合本標準要求，應加倍取樣對不符合項進行復驗，復驗結果若均符合本標準要求，則仍判定該批產品合格，否則判定該批產品不合格。 7標志、包裝、運輸和貯存 7.1 標志 7.1.1 襯片的非工作面上應有制造廠名稱(簡稱)或商標(代號)、生產年月或批號。 7.1.2 襯片包裝箱(盒)上應標有產品名稱、型號規格、制造廠名、地址、產品數量和本標準號。M1、M2、N1、O1、O2類車輛使用的鼓式襯片還應標有摩擦系數級別代號；盤式襯片和M3、N2、N3、O3、O4類車輛使用的鼓式襯片還應標有設定摩擦系數值。 7.2包裝 7.2.1 襯片應緊密整齊地裝入清潔干燥、堅固耐用的箱(盒)內。 7.2.2每個包裝箱(盒)內應裝入型號規格相同的襯片；當用戶需要時，也可裝入成套供應的襯片。 7.2.3每個包裝箱(盒)應附有產品合格證明。 7.3運輸和貯存 7.3.1 在運輸過程中應做到不使襯片受到損壞和被油、水沾污。 7.3.2襯片應貯存在通風干燥、地面平坦的室內。