河

北

省

地

方

計(jì)

量

技

術(shù)

規(guī)

范JJF(冀)

239—2024鋼輪式耐磨試驗(yàn)機(jī)校準(zhǔn)規(guī)范Calibration

Tester2024

-

09

-

發(fā)布2024

-

10

-

實(shí)施

發(fā)

布JJF(冀)

—2024Calibration

Specification

forSteel

Wheel

W

ear

Tester

JJF(冀)

239—2024歸

口

單

河北省市場監(jiān)督管理局主要起草單位：

河北省計(jì)量檢測技術(shù)中心參加起草單位：

河北華檢計(jì)量檢測有限公司河北省計(jì)量監(jiān)督檢測研究院廊坊分院本規(guī)范委托起草單位負(fù)責(zé)解釋JJF(冀)

—2024范玉濤（河北省計(jì)量檢測技術(shù)中心）參加起草人：劉JJF(冀)

—2024 ········································································································（

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摩擦鋼輪幾何尺寸測量結(jié)果不確定度評(píng)定示例·····································（

10）

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12）

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14）IJJF(冀)

—2024

《通用計(jì)量術(shù)語及定義》、

GB/T

GB/T

IIJJF(冀)

—2024GB/T

GB/T

凡是注日期的引用文件，僅注日期的版本適用于本規(guī)范；凡是不注日期的引用文件， 10

12

14

13圖

1 鋼輪式耐磨試驗(yàn)機(jī)結(jié)構(gòu)示意圖1-2-4-5-7-8-9-10-13-1序號(hào)校準(zhǔn)項(xiàng)目技術(shù)要求適用標(biāo)準(zhǔn)1摩擦鋼輪轉(zhuǎn)速（75±3）r/minGB/T

GB/T

2摩擦鋼輪幾何尺寸直徑：(200±0.2)mm厚度：(10±0.1)mmGB/T

直徑：(200±0.2)mm厚度：(70±0.1)mmGB/T

3配重總質(zhì)量(2.50±0.01)kg/(14.00±GB/T

4工作狀態(tài)流量100r

時(shí)間內(nèi)通過的磨料質(zhì)量為(100±10)gGB/T

≥1L/minGB/T

5時(shí)間（120±1）sGB/T

GB/T

注：以上指標(biāo)不作為合格性判據(jù)，僅為使用中所參考。序號(hào)校準(zhǔn)項(xiàng)目標(biāo)準(zhǔn)器及設(shè)備名稱、技術(shù)指標(biāo)1摩擦鋼輪轉(zhuǎn)速轉(zhuǎn)速表：測量范圍（50～999.9），1.02摩擦鋼輪幾何尺寸卡尺：測量范圍（0～300）mm，分度值0.02mm。3配重總質(zhì)量電子天平：

Ⅲ

級(jí)。4工作狀態(tài)流量電子天平：

Ⅲ

級(jí)；秒表：（0～3600）s，0.10s（1h）。5時(shí)間秒表：（0～3600）s，0.10s（1h）。JJF(冀)

—2024 表1

鋼輪式耐磨試驗(yàn)機(jī)的計(jì)量性能指標(biāo)表1

鋼輪式耐磨試驗(yàn)機(jī)的計(jì)量性能指標(biāo)20±10表2表2

校準(zhǔn)用設(shè)備序號(hào)校準(zhǔn)項(xiàng)目1摩擦鋼輪轉(zhuǎn)速2摩擦鋼輪幾何尺寸3配重總質(zhì)量4工作狀態(tài)流量5時(shí)間JJF(冀)

—2024 表3

校準(zhǔn)項(xiàng)目表3

校準(zhǔn)項(xiàng)目摩擦鋼輪幾何尺寸鋼輪厚度：使用卡尺直接測量，每轉(zhuǎn)動(dòng)90°測量一次，取次測量的平均值作為測量結(jié)

GB/T

將盛樣容器放在稱量儀器上稱取質(zhì)量，將磨料（

白剛玉）倒入料斗，然后調(diào)節(jié)導(dǎo)

次測量的平均值作為測量結(jié)果。3JJF(冀)

—2024

GB/T

次測量的最小值作為測量結(jié)果。M

=m1m212

ρ——g/cm3————mL使用秒表測量，設(shè)定試驗(yàn)機(jī)時(shí)間為，啟動(dòng)試驗(yàn)機(jī)的同時(shí)啟動(dòng)秒表，待試驗(yàn)機(jī)計(jì)時(shí)器停止時(shí)，按下秒表計(jì)時(shí)結(jié)束，重復(fù)測量 4JJF(冀)

—20245第i次測量12345678910測量值（）75.174.775.975.675.474.875.674.975.275.5JJF(冀)

239—2024附錄

A 75±3r/minr/min R

=

R1R21r/min2r/min 12 1

表

A.1表

A.1鋼輪轉(zhuǎn)速重復(fù)性測量數(shù)據(jù)

6標(biāo)準(zhǔn)不確定度u不確定度來源標(biāo)準(zhǔn)不確定度值（）靈敏系數(shù)︱c︱不確定度分量︱c︱u（）u測量重復(fù)性0.2310.23u轉(zhuǎn)速表最大允許誤差0.4410.44JJF(冀)

239—2024 275.5r/min±0.76r/minu2

=

0.763

=0.44r/

表

A.2鋼輪轉(zhuǎn)速標(biāo)準(zhǔn)不確定度分量匯總表表

A.2鋼輪轉(zhuǎn)速標(biāo)準(zhǔn)不確定度分量匯總表uc

=

u1

+u2

=

0.232

+0.442

=0.5r/2 2 ，則擴(kuò)展不確定度為：U

=c

=1.0r/

7第i次測量12345678910質(zhì)量（g）2508.42508.52508.32508.42508.32508.22508.32508.42508.22508.1JJF(冀)

239—2024附錄

BB.1 B.2 B.3個(gè)配重，放在電子天平上稱量，記錄配重總質(zhì)量，并與標(biāo)稱質(zhì)量進(jìn)行對(duì)比。B.4B.1Q=Q1Q21配重總質(zhì)量標(biāo)稱值，2B.5 B.5.112B.5.21B.1

表

表

配置總質(zhì)量重復(fù)性測量數(shù)據(jù)(Q

Q(Q

Q)

ni=1

in1

2

=0.12g

B.2u1

=

0.123

=0.07g

B.38標(biāo)準(zhǔn)不確定度u不確定度來源標(biāo)準(zhǔn)不確定度值靈敏系數(shù)︱c︱不確定度分量︱c︱u（g）u測量重復(fù)性0.0710.07u電子天平最大允許誤差0.8710.87JJF(冀)

239—2024B.5.3 2電子天平最大允許誤差為±1.5

u2

=

3

=0.87g

B.4B.6 B.6.1表

標(biāo)準(zhǔn)不確定度分量匯總表表

標(biāo)準(zhǔn)不確定度分量匯總表uc

=

u1

+u2

=

0.072

+0.872

=0.9g22B.7 ，則擴(kuò)展不確定度為：U

=kuc

=1.8g

B.5B.69第i次測量12345678910測量值（mm）10.0210.0410.0410.0210.0410.0410.0210.0410.0410.04JJF(冀)

239—2024附錄

C摩擦鋼輪幾何尺寸測量結(jié)果不確定度評(píng)定示例C.1 鋼輪式耐磨試驗(yàn)機(jī)，鋼輪幾何尺寸。C.2 mm

C.3 使用游標(biāo)卡尺直接測量。C.4 C.1l

=l1l2mm1mm2mmC.5 C.5.1123C.5.21C.1

表

表

鋼輪幾何尺寸重復(fù)性測量數(shù)據(jù)(l

l(l

l)

ni=1

in1

2

=0.01

C.2u1

=

0.013

=0.005

C.310標(biāo)準(zhǔn)不確定度

u不確定度來源標(biāo)準(zhǔn)不確定度值（mm）靈敏系數(shù)︱c︱不確定度分量︱c︱u（mm）u測量重復(fù)性0.00510.005u游標(biāo)卡尺分度值0.005810.0058u游標(biāo)卡尺最大允許誤差0.01710.017u

=

=0.0058mmJJF(冀)

239—2024u

=

=0.0058mmC.5.3 2

0.013

C.4C.5.43±0.03mm0.03mmu3

=

3

=0.017mm

C.5C.6 C.6.1 表

標(biāo)準(zhǔn)不確定度分量匯總表表

標(biāo)準(zhǔn)不確定度分量匯總表uc

=

u1

+u2

+u3

=

0.0052

+0.00582

+0.0172

=0.02mm2 22C.7 ，則擴(kuò)展不確定度為：U

=c

=0.04mm

C.6C.711委托單位：證書編號(hào)：委托單位地址：校準(zhǔn)依據(jù)：儀器名稱：型號(hào)規(guī)格：出廠編號(hào)：制造單位：校準(zhǔn)前檢查：校準(zhǔn)地點(diǎn)：環(huán)境溫度：

℃相對(duì)濕度：

%名稱出廠編號(hào)測量范圍準(zhǔn)確度等級(jí)/最大允許誤差/測量不確定度證書編號(hào)有效期至適用標(biāo)準(zhǔn)標(biāo)稱值（g）實(shí)測值（g）示值誤差（g）測量不確定度（k）123平均值適用標(biāo)準(zhǔn)標(biāo)稱值（）實(shí)測值（）示值誤差（）測量不確定度（k）123平均值適用標(biāo)準(zhǔn)標(biāo)稱值（mm）實(shí)測值（mm）示值誤差（mm）測量不確定度（k）12平均值JJF(冀)

239—2024附錄

D鋼輪式耐磨試驗(yàn)機(jī)校準(zhǔn)記錄格式

12適用標(biāo)準(zhǔn)標(biāo)稱值（mm）實(shí)測值（mm）示值誤差（mm）測量不確定度（k）1234平均值適用標(biāo)準(zhǔn)設(shè)定值（s）實(shí)測值（s）示值誤差（s）測量不確定度（k）123平均值120120適用標(biāo)準(zhǔn)標(biāo)稱值實(shí)測值示值誤差測量不確定度（k）JJF(冀)

239—2024 131.

摩擦鋼輪轉(zhuǎn)速適用標(biāo)準(zhǔn)標(biāo)稱值（）實(shí)測值（）示值誤差（）測量不確定度（k）2.

配重總質(zhì)量適用標(biāo)準(zhǔn)標(biāo)稱值（g）實(shí)測值（g）示值誤差（g）測量不確定度（k）3.

摩擦鋼輪幾何尺寸適用標(biāo)準(zhǔn)校準(zhǔn)項(xiàng)目標(biāo)稱值（mm）實(shí)測值（mm）示值