標準編號:	QC/T 241-2024
中文名稱:	汽車無內(nèi)胎車輪密封性檢測方法
英文名稱:	Air leakage detection methods of automobile wheels for tubeless tires
中標分類:	T22    承載系統(tǒng)
行業(yè)分類:	QC    汽車行業(yè)標準
ICS分類:	43.040.50 43.040.50    傳動裝置、懸掛裝置 43.040.50
發(fā)布機構(gòu):	中華人民共和國工業(yè)和信息化部
發(fā)布日期:	2024-07-05
實施日期:	2025-1-1
標準狀態(tài):	valid
替代舊標準:	QC/T 241-2011 汽車無內(nèi)胎車輪密封性試驗方法
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	12000 字
翻譯價格(元):	840.0
交付時間:	付款后 1 個工作日

QC/T 241-2024 Air leakage detection methods of automobile wheels for tubeless tires 1 Scope This document specifies six air leakage detection methods of automobile wheels, namely helium detection method, comparison detection method, hydrogen detection method, differential pressure detection method, water detection method and compressed air method. This document is applicable to automobile wheels equipped with tubeless tires. To be specific, helium detection method and water detection method are recommended for light alloy wheels; comparison detection method, hydrogen detection method, differential pressure detection method and compressed air method are recommended for steel wheels. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions 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 2933 Wheels and rims for pneumatic tyres - Vocabulary, designation and marking 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 2933 and the following apply. 3.1 leak rate amount of leakage caused by differential pressure per unit time Note: It is expressed in Pa·m3/s. 3.2 critical leakage rate leak rate threshold used to determine whether a part is acceptable 4 Samples The detection samples shall be unused new wheels or rims with uncoated surfaces. 5 Detection methods 5.1 Helium detection method 5.1.1 Detection equipment The detection equipment shall be equipped with a sealing device, which divides the wheel into two seal chambers, inner and outer, and shall be able to vacuum the two seal chambers. It shall be able to provide helium and detect the partial pressure of helium in the seal chamber of the wheel (see Figure 1).

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Samples 5 Detection methods 5.1 Helium detection method 5.2 Comparison detection method 5.3 Hydrogen detection method 5.4 Differential pressure detection method 5.5 Water detection 5.6 Compressed air method Annex A (Informative) Leak rate determination method

汽車無內(nèi)胎車輪密封性檢測方法 1 范圍 本文件描述了汽車車輪密封性的六種檢測方法，即氦氣檢測法、比對檢測法、氫氣檢測法、壓差檢測 法、水檢法和壓縮空氣法。 本文件適用于配裝無內(nèi)胎輪胎的汽車車輪。其中，輕合金車輪推薦使用氦氣檢測法和水檢法；鋼車 輪推薦使用比對檢測法、氫氣檢測法、壓差檢測法和壓縮空氣法。 2 規(guī)范性引用文件 下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文 件，僅該日期對應(yīng)的版本適用于本文件；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 2933 充氣輪胎用車輪和輪輛的術(shù)語、規(guī)格代號和標志 3 術(shù)語和定義 GB/T 2933 界定的以及下列術(shù)語和定義適用于本文件。 3.1 泄漏率 leak rate 單位時間內(nèi)因壓力差產(chǎn)生的泄漏量。 注：單位為Pa·m2/s. 3.2 臨界泄漏率 critical leakage rate 用于判定零件合格與否的泄漏率閾值。 4 樣品 檢測樣品應(yīng)是表面未經(jīng)涂裝未被使用的新車輪或輪輞。