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HLN-11A里氏硬度計(jì)簡(jiǎn)介
HLN-11A里氏硬度計(jì)是時(shí)代集團(tuán)(TIME/TIMES)生產(chǎn)的一種新型的硬度測(cè)試儀器。HLN-11A里氏硬度計(jì)它是根據(jù)*新的里氏硬度測(cè)試原理(Dietmar Leeb)利用*的微處理器技術(shù)設(shè)計(jì)而成。HLN-11A里氏硬度計(jì)具有測(cè)試精度高、體積小、操作容易、攜帶方便，測(cè)量范圍寬的特點(diǎn)。HLN-11A里氏硬度計(jì)它可將測(cè)得的HL里氏硬度值自動(dòng)轉(zhuǎn)換成布氏硬度、洛氏硬度、維氏硬度、肖氏硬度等硬度值并打印記錄，它還可配置適合于各種測(cè)試場(chǎng)合的配件。HLN-11A里氏硬度計(jì)可以滿足于各種測(cè)試環(huán)境和條件。

HLN-11A里氏硬度計(jì)的標(biāo)準(zhǔn)配備沖擊裝置：

沖擊裝置名稱(chēng)	用途
沖擊裝置D	用于大部分硬度測(cè)量
沖擊裝置DC	用于非常局促地方(孔內(nèi)、圓柱園內(nèi))的測(cè)量
沖擊裝置D十15	用于溝槽內(nèi)或凹入的表面硬度測(cè)量
沖擊裝置E	用于硬度，碳化物含量高的工具鋼的硬度測(cè)量
沖擊裝置C	用于表面硬化了的部件，表面覆蓋層，薄壁的硬度測(cè)量
沖擊裝置G	僅用于布氏硬度650HB范圍內(nèi)的密實(shí)部件的硬度測(cè)量
沖擊裝置DL	用于深槽槽底或型面（如齒面）等零件的測(cè)量

HLN-11A里氏硬度計(jì)的主要技術(shù)參數(shù)：

示值誤差	相對(duì)誤差±0．8％(LD=800時(shí))
示值誤差	示值重復(fù)性．8％(LD=800時(shí))
硬度被測(cè)材料	鋼和鑄鋼、合金工具鋼、灰鑄鐵、球墨鑄鐵、鑄鋁合金、銅鋅合金(黃銅)、銅錫合金(青銅)、純銅等
強(qiáng)度被測(cè)材料	碳鋼、鉻鋼、鉻釩鋼、鉻鎳鋼、鉻鉬鋼、鉻錳硅鋼、超高強(qiáng)度鋼、不銹鋼
工作溫度	0--40℃
工作電壓	4.7V--6.0V
測(cè)試方向	任意
整機(jī)重量	0．675Kg(標(biāo)準(zhǔn)配置：硬度計(jì)主機(jī)十打印裝置十沖擊裝置D)
外形尺寸	270×86×47（mm）
一次充電工作時(shí)間	約24小時(shí)

HLN-11A里氏硬度計(jì)的測(cè)試及換算范圍：

沖擊裝置D、DC
	HRC	HRB	HB	HV	HSD
STEEL鋼和鑄鋼	17.9-68.5	59.6-99.5	93-651	83-976	32.2-99.5
SWT.ST合金工具鋼	20.4-67.1	/	/	80-898	/
GC.IRON灰鑄鐵	/	/	93-334	80-898	/
NC.IRON球墨鑄鐵	/	/	131-387	/	/
C.ALUM鑄鋁合金	/	/	30-159	/	/
BRASS(黃銅)銅鋅合金	/	13.5-95.3	40-173	/	/
BRONZE(青銅)銅錫合金	/	/	60-290	/	/
COPPER純銅	/	/	45-315	/	/

Metal Hardness Tester Model HLN-11A

Features of HLN-11A

D probe is for standard use.
DC probe is short and is convenient in small space.
DL type is used in confined surfaces such as gear wheels.
D+15 type is for measuring in grooves or recessed surfaces.
C type is used on surface-hardened, coated, thin-walled or impact sensitive components.
G type is used on heavy and rough cast and forged work pieces.

Specifications of HLN-11A (with impact device D)

Measuring accuracy	±0.8% of reading at LD=800
Repeatability	0.8% of reading at LD=800
Minimum sample weight	4.4 lb (2 kg)
(if coupled)	0.22 lb (100g)
Minimum sample thickness	0.2 in(5mm)
(if coupled)	0.1 in(3mm)
Minimum radius of curved surface	1.2 in (30mm)
(with support rings)	0.4 in (11mm)
Min. thickness of hardened surface	0.8mm
Maximum sample hardness	900HLD(68HRC)
Hardness measurement value	HLD, HRC, HRB, HB, HV and HSD
Automatic calculation	Average test value
conversion of hardness value to strength value (s)
Onboard memory	9 data
Standard impact device	Model D
Optional impact device	DC, DL, D+15, C, G
Automatic identification of impact device
Impact direction	0°, ±45°, ±90°
Tungsten carbide test tip
Operating voltage	5.0V NiMH rechargeable batteries
Operating temperature	Processor 4.7°F to 104°F Probe -4°F to 248°F
Weight	approximate 1.4 lb
Dimentions	10.6 x 3.4 х 1.8 in (270 х 86 х 47mm)
Compact carrying case
removable micro printer

Featuresof HLN-11A

Model:	D/DC/DL	D+15	C	G
Impact energy:	11Nmm	11Nmm	2.7Nmm	90Nmm
Mass of the impact body:	5.5 / 5.5 / 7.3g	7.8g	3.0g	20g
Probe diameter:	20/20/5mm	20mm	20mm	30mm
Probe length:	147/86/202mm	162mm	141mm	254mm
Probe weight	75/50/87g	80g	75g	250g
Max. hardness of sample:	940/940/950HV	940HV	1000HV	650HB
Preparation of surface:
Roughness class ISO	N7	N7	N5	N9
Max. roughness depth Rt.	10µm	10µm	2.5µm	30µm
Average roughness Ra	2µm	2µm	0.4µm	7µm
Min. weight of sample:
Of compact shape	5kg	5kg	1.5kg	15kg
On solid support	2kg	2kg	0.5kg	5kg
Coupled on plate	100g	100g	20g	500g
Min. thickness of sample:
Coupled	3mm	3mm	1mm	10mm
Min. thickness of layers	0.8mm	0.8mm	0.2mm	1.2mm
Test tip:
Hardness	1600HV	1600HV	1600HV	1600HV
Diameter	3mm	3mm	3mm	5mm
Material	Tungsten carbide
Indentation:
Diameter -with 300 HV	0.54mm	0.54mm	0.38mm	1.03mm
Depth -with 300HV	24µm	24µm	12µm	53µm
Diameter -with 600 HV	0.54mm	0.54mm	0.32mm	0.90mm
Depth -with 600HV	17µm	17µm	8µm	41µm
Diameter -with 800 HV	0.35mm	0.35mm	0.35mm	~
Depth -with 800HV	10µm	10µm	7µm	~