CN104297434B - A kind of Odor Evaluations method of automotive trim parts - Google Patents
A kind of Odor Evaluations method of automotive trim parts Download PDFInfo
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- CN104297434B CN104297434B CN201410597446.7A CN201410597446A CN104297434B CN 104297434 B CN104297434 B CN 104297434B CN 201410597446 A CN201410597446 A CN 201410597446A CN 104297434 B CN104297434 B CN 104297434B
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Abstract
The invention discloses a kind of Odor Evaluations method of automotive trim parts, add distinguishing of smell source by adopting the test requirements document of larger sample volume and Geng Gao, parts assembly smell percentage contribution to car load can be investigated more intuitively. With respect to the Odor Evaluations of material type, this method promoting the circulation of qi taste rectification of can quick lock in car load smell contribution source going forward side by side. The composition material that efficiently solves parts causes the problem of erroneous judgement because local homogeneity is bad, also prevent the undetected problem of minority's composition material or the auxiliary material of complex parts assembly simultaneously.
Description
Technical field
The present invention relates to vehicle air quality management and control field, more specifically to zero of a kind of automotive trimThe Odor Evaluations method of part.
Background technology
In-car air quality problem more and more receives user's concern, and people are at subjective feeling in-vehicle air pollutionTime be all to experience smell in car. Country 2008 and successively issue in 2011 examination of in-vehicle air pollutionProved recipe method and limit value, but in non-regulation car smell ranking method and accept standard.
Present most of automobile main frame maker, for improving air quality in vehicle, is all using or the German VDA270 of referenceOdor Evaluations method, adopt 1L or 3L glass odor bottle to carry out smell subjective assessment test. As shown in Figure 3,This odor bottle 1 adopts glass material to make bottle 3, and with one can airtight odor bottle bottle cap 2, shouldBottle cap 2 can be used material making or the resistant to elevated temperatures sealing strip group of glass cover and free from extraneous odour of glass tape frostedBecome, in bottle 3, pack quantitative standard sample 4 into, then respectively at three temperature (23 DEG C, 40 DEG C, 80 DEG C)Under carry out odor evaluation test, the odor dispersion of simulated automotive under indoor temperature, outdoor temperature and high-temperature conditionSituation. Because the method only intercepts quantitative standard sample 4 to automotive trim parts/material, at interior trim zeroIn the good situation of material homogeneity of parts/material, the method can well across comparison unlike material orThe raw-material odor dispersion situation of person's different manufacturers, if but test sample material homogeneity is bad will be gone outNow larger erroneous judgement. Low and cost control is strict in current domestic technology, also cannot accomplishThe homogeneity that material is good. In addition, because the method is material level test evaluation, if need certain car load of investigationSmell source, then need the hundreds of kind composition raw material to parts all in car to investigate one by one, examinationTest quantities huge, add the reason that material homogeneity is bad, adopt the method to the smell investigation of car load and wholeChange and bring larger difficulty.
Summary of the invention
The object of this invention is to provide a kind of Odor Evaluations method of automotive trim parts, to solve car interior trim zeroParts, because material homogeneity is bad, parts material composition is complicated, adopt existing material level Odor Evaluations sideMethod is difficult to the problem in investigation car load smell source.
The Odor Evaluations method of automotive trim parts of the present invention, comprises the following steps:
The preparation of step 1, Odor Evaluations bag
1. Odor Evaluations bag only has one end open, and this opening is sealed by sealing strip, and at Odor Evaluations bagOn be provided with gas-filled switching tube, described Odor Evaluations bag, sealing strip and gas-filled switching tube are by free from extraneous odour and resistance to 150 DEG CThe material of above temperature is made.
2. the air-tightness of guaranteeing Odor Evaluations bag is good;
3. under the condition that temperature is 80 DEG C, at least burin-in process of 24h is carried out to Odor Evaluations bag.
The preparation of step 2, parts to be measured
Pack into surveying parts in the polybag of free from extraneous odour, after sealing, be placed into the constant temperature of clean free from extraneous odourIn humidity room, be 23 ± 2 DEG C in temperature, place 24h under the relative humidity condition that is 50% ± 5%.
Step 3: parts pack to be measured
1., in clean free from extraneous odour and draughty laboratory, parts to be measured are packed in Odor Evaluations bag,Parts to be measured are avoided to be polluted;
2. with reference to form one, in Odor Evaluations bag, quantitative pure air is filled with according to the size of parts to be measured.
Form one
| Smell bag type | Class1 | Type 2 | Type 3 | Type 4 | Type 5 |
| Smell bag size (long × wide) | 35×35cm | 70×60cm | 120×120cm | 190×110cm | 200×128cm |
| Filled volume | 3L | 15L | 60L | 150L | 300L |
Step 4: constant temperature smell discharges
The Odor Evaluations bag that parts to be measured are housed is put into free from extraneous odour and dry with the constant temperature of air filtering systemIn case, be 60 ± 1 DEG C in temperature, 4h ± 0.2h carries out constant temperature processing.
Step 5: smell subjective assessment
Take out Odor Evaluations bag to be placed under room temperature environment, when parts temperature is down to 50 ± 1 DEG C, slide closeStrip of paper used for sealing is opened the opening of 10 ± 1cm width by one jiao of Odor Evaluations bag, evaluates personnel's nose from this extended distance5 ± 1cm, outwards pushes Odor Evaluations bag, and gas is overflowed, and evaluation personnel make oder levels in 10sPass judgment on.
Odor Evaluations requires:
1. Odor Evaluations personnel need through specialty smell the person of debating train and examine qualified.
2. an Odor Evaluations at least needs 3 evaluation personnel, if the personnel's of evaluation evaluation result difference is greater than1 grade then needs the revaluation of substituting, until the personnel's of evaluation evaluation result difference is less than or equal to 1 grade.
Step 6: result evaluation
1. taking Odor Evaluations grade as final Appreciation gist, level value shows that more greatly smell is larger, otherwise then gets overLittle;
2. evaluation conclusion, is shown in form two; If final opinion rating is different, that then takes that the minority is subordinate to the majority is formerThen, the grade that majority select is got.
Form two
| Grade | Feature interpretation |
| 1 | Smell is not discernable |
| 2 | Discernable, but very slight |
| 3 | Obviously discover, but can accept |
| 4 | Irritant smell, can not accept |
| 5 | There is intense stimulus smell, cannot stand |
Further, Odor Evaluations bag, sealing strip and gas-filled switching tube are made by polytetrafluoroethylene (PTFE).
Further, in step 3, for sticking or have sharp-pointed parts to be measured, then use PTFE filmOr clean aluminium foil wrap up process after pack again, PE gloves or other clean free from extraneous odour during pack, must be wornGloves.
The Odor Evaluations method of automotive trim parts of the present invention, efficiently solves the composition material of partsCause the problem of erroneous judgement because local homogeneity is bad, the minority who simultaneously also prevent complex parts assembly forms materialThe undetected problem of material or auxiliary material. Smell is add by adopting larger sample volume and the test requirements document of Geng GaoSource distinguish limit, parts assembly smell percentage contribution to car load can be investigated more intuitively. With respect to materialThe Odor Evaluations of type, this method promoting the circulation of qi taste rectification of can quick lock in car load smell contribution source going forward side by side.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention;
The structural representation of Fig. 2 when to be that in the present invention, Odor Evaluations is packed have parts to be measured;
Fig. 3 is the schematic diagram of the Odor Evaluations method glass odor bottle used of existing German VDA270.
Detailed description of the invention
In order to explain technical scheme of the present invention further, below in conjunction with accompanying drawing, the present invention will be described in detail.
See shown in Fig. 1 and Fig. 2, the Odor Evaluations method of automotive trim parts, comprises the following steps:
The preparation of step 1, Odor Evaluations bag
1. Odor Evaluations bag 5 only has one end open, and this opening is sealed by sealing strip 6, and comments at smellValency bag is provided with gas-filled switching tube 7, described Odor Evaluations bag 5, sealing strip 6 and gas-filled switching tube 7 are by poly-fourPVF is made, and meets the requirement of material free from extraneous odour and ability more than 150 DEG C temperature.
2. adopt the air-tightness that vacuumizes mode and check Odor Evaluations bag 5, guarantee the air-tightness of Odor Evaluations bag 5Well.
3., before using, under the condition of 80 DEG C of temperature, at least burin-in process of 24h is carried out to Odor Evaluations bag 5.
The preparation of step 2, parts to be measured
Pack into surveying parts 8 in the polybag of free from extraneous odour, after sealing, be placed into the perseverance of clean free from extraneous odourConstant temperature and humidity is indoor, be 21 DEG C in temperature (also or be 23 DEG C, 25 DEG C), relative humidity be 45% (also or be 50%,60%) 24h under condition, is placed.
Step 3: parts pack to be measured
1., in clean free from extraneous odour and draughty laboratory, parts 8 to be measured are packed in Odor Evaluations bag,Avoid parts to be measured to be polluted, for sticking or have sharp-pointed parts to be measured, then use PTFE filmOr clean aluminium foil wrap up process after pack again, PE gloves or other clean free from extraneous odour during pack, must be wornGloves.
2. with reference to form one, in Odor Evaluations bag, quantitative pure air is filled with according to the size of parts to be measured.
Form one
| Smell bag type | Class1 | Type 2 | Type 3 | Type 4 | Type 5 |
| Smell bag size (long × wide) | 35×35cm | 70×60cm | 120×120cm | 190×110cm | 200×128cm |
| Filled volume | 3L | 15L | 60L | 150L | 300L |
Step 4: constant temperature smell discharges
The Odor Evaluations bag that parts to be measured are housed is put into free from extraneous odour and dry with the constant temperature of air filtering systemIn case, be 59 DEG C in temperature (also or be 60 DEG C, 61 DEG C), 3.8h (also or be 4h, 4.2h) carries out perseveranceTemperature is processed. Due to when opening constant temperature oven, temperature can be caused to decline, during operation, need to ensure that thermostatic process exists3.5h at least in specified for temperature ranges.
Step 5: smell subjective assessment
Take out Odor Evaluations bag and be placed on general about 1min under room temperature environment, parts temperature will be down to 50 DEG CLeft and right, now, slipper seal bar opens one jiao of Odor Evaluations bag the opening that width is about 10cm, evaluatesPersonnel's nose, from extended distance about 5cm, is outwards pushed Odor Evaluations bag 5 gently, gas is overflowed, commentValency personnel make level evaluation in 10s;
Odor Evaluations requires:
1. Odor Evaluations personnel need through specialty smell the person of debating train and examine qualified.
2. an Odor Evaluations at least needs 3 evaluation personnel, if the personnel's of evaluation evaluation result difference is greater than1 grade then needs the revaluation of substituting, until the personnel's of evaluation evaluation result difference is less than or equal to 1 grade.
Step 6: result evaluation
1. taking Odor Evaluations grade as final Appreciation gist, level value shows that more greatly smell is larger, otherwise then gets overLittle;
2. evaluation conclusion, is shown in form two; If three people's opinion rating is different, then take that the minority is subordinate to the majorityPrinciple, gets the grade that majority select. During evaluation procedure, allow to occur the feelings between two kinds of evaluation ranksCondition, for example three people are evaluated as 2.5 grades, 2.5 grades, 3 grades and then get 2.5 grades.
Form two
| Grade | Feature interpretation |
| 1 | Smell is not discernable |
| 2 | Discernable, but very slight |
| 3 | Obviously discover, but can accept |
| 4 | Irritant smell, can not accept |
| 5 | There is intense stimulus smell, cannot stand |
Claims (3)
1. an Odor Evaluations method for automotive trim parts, is characterized in that: comprise the following steps:
The preparation of step 1, Odor Evaluations bag
1. Odor Evaluations bag (5) only has one end open, and this opening is sealed by sealing strip (6), andOdor Evaluations bag is provided with gas-filled switching tube (7), described Odor Evaluations bag, sealing strip and gas-filled switching tube are by nothingThe material of peculiar smell and resistance to more than 150 DEG C temperature is made;
2. the air-tightness of guaranteeing Odor Evaluations bag is good;
3. under the condition that temperature is 80 DEG C, at least burin-in process of 24h is carried out to Odor Evaluations bag;
The preparation of step 2, parts to be measured
Pack into surveying parts in the polybag of free from extraneous odour, after sealing, be placed into the constant temperature of clean free from extraneous odourIn humidity room, be 23 ± 2 DEG C in temperature, place 24h under the relative humidity condition that is 50% ± 5%;
Step 3: parts pack to be measured
1., in clean free from extraneous odour and draughty laboratory, parts to be measured are packed in Odor Evaluations bag,Parts to be measured are avoided to be polluted;
2. with reference to form one, in Odor Evaluations bag, quantitative pure air is filled with according to the size of parts to be measured;
Form one
Step 4: constant temperature smell discharges
The Odor Evaluations bag that parts to be measured are housed is put into free from extraneous odour and dry with the constant temperature of air filtering systemIn case, be 60 ± 1 DEG C in temperature, 4h ± 0.2h carries out constant temperature processing;
Step 5: smell subjective assessment;
Step 6: result evaluation.
2. the Odor Evaluations method of automotive trim parts according to claim 1, is characterized in that: instituteState Odor Evaluations bag, sealing strip and gas-filled switching tube to make by polytetrafluoroethylene (PTFE).
3. the Odor Evaluations method of automotive trim parts according to claim 1 or 2, is characterized in that:In step 3, for sticking or have sharp-pointed parts to be measured, then enter with PTFE film or clean aluminium foilRow parcel packs after processing again, and PE gloves or other clean free from extraneous odour gloves must be worn during pack.
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| CN104764858B (en) * | 2015-04-10 | 2016-08-24 | 北京汽车股份有限公司 | Sources of odor detection cabin and automobile sources of odor detection method |
| CN104807904A (en) * | 2015-05-01 | 2015-07-29 | 长春富维—江森自控汽车饰件系统有限公司 | Method for detecting smell of volatile matter monomer in non-metal material of automotive trim |
| CN105203706B (en) * | 2015-09-15 | 2017-10-31 | 广州广电计量检测股份有限公司 | Smell method of testing |
| CN105223320A (en) * | 2015-10-27 | 2016-01-06 | 神龙汽车有限公司 | A kind of auto parts and components Odor Evaluations device and using method thereof |
| CN105842428A (en) * | 2016-05-09 | 2016-08-10 | 紫荆花涂料（上海）有限公司 | Method for evaluating odor of odorless paint or coatings |
| CN108918691B (en) * | 2018-03-21 | 2021-06-22 | 中汽数据有限公司 | Method for determining odor substances in vehicle and method for tracing odor substances in vehicle |
| CN108889149B (en) * | 2018-07-04 | 2020-04-21 | 中国汽车技术研究中心有限公司 | Standard gas configuration method for training odor evaluation personnel |
| CN109521127B (en) * | 2018-12-25 | 2021-11-26 | 广州广电计量检测股份有限公司 | Qualitative and quantitative analysis method for evaluating odor of single odor substance |
| CN112444617B (en) * | 2019-09-04 | 2023-05-23 | 中国石油化工股份有限公司 | Odor evaluation method of polyolefin resin and application thereof |
| CN110865147B (en) * | 2019-09-25 | 2022-07-26 | 上海瀚海检测技术股份有限公司 | Odor test and evaluation method for air conditioner evaporator |
| CN110927345B (en) * | 2019-12-24 | 2023-02-21 | 奇瑞新能源汽车股份有限公司 | Odor testing method for automotive interior trim part |
| CN112740033B (en) * | 2020-02-10 | 2022-10-14 | 华测检测认证集团股份有限公司 | Preparation and use method of odor evaluation reference sample block of automotive interior part material |
| CN111397996B (en) * | 2020-06-08 | 2020-10-13 | 中汽研汽车零部件检验中心(宁波)有限公司 | Odor standard gas preparation method based on odor intensity concentration relation |
| CN111693649A (en) * | 2020-06-08 | 2020-09-22 | 中汽研汽车零部件检验中心(宁波)有限公司 | Odor evaluation method for automobile part material by threshold method |
| CN112285296A (en) * | 2020-11-11 | 2021-01-29 | 重庆长安汽车股份有限公司 | Automobile interior part smell evaluation method based on electronic nose |
| CN113588819A (en) * | 2021-07-27 | 2021-11-02 | 重庆长安汽车股份有限公司 | Quantitative evaluation method for odor of automobile interior part |
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