Papa Hoʻohālikelike Paʻakikī maʻamau | ʻOhi ʻoi loa

ʻO HV, HB, a me HRC nā ana o ka paʻakikī i hoʻohana ʻia i ka hoʻāʻo ʻana i nā mea. E wāwahi kākou iā lākou:

1)HV Hardness (Vickers Hardness): ʻO ka paʻakikī HV kahi ana o ke kūʻē ʻana o kahi mea i ka hoʻopaʻa ʻana. Hoʻoholo ʻia ma ka hoʻopili ʻana i kahi haʻawe i ʻike ʻia i ka ʻili o ka mea me ka hoʻohana ʻana i kahi indenter daimana a ana i ka nui o ka indentation hopena. Hōʻike ʻia ka paʻakikī HV i nā ʻāpana o ka paʻakikī Vickers (HV) a hoʻohana mau ʻia no nā mea lahilahi, nā uhi, a me nā ʻāpana liʻiliʻi.

2) HB Paʻakikī (Brinell Hardness): ʻO ka paʻakikī HB kekahi ana o ke kūʻē ʻana o kahi mea i ka indentation. Hoʻopili ia i ka hoʻopili ʻana i kahi haʻawe i ʻike ʻia i ka mea me ka hoʻohana ʻana i ka indenter pōpō kila paʻakikī a me ke ana ʻana i ke anawaena o ka indentation hopena. Hōʻike ʻia ka paʻakikī HB i nā ʻāpana o Brinell hardness (HB) a hoʻohana pinepine ʻia no nā mea nui a nui aʻe, me nā metala a me nā mea hoʻohui.

3)HRC paakiki (Rockwell Hardness): ʻO ka paʻakikī o ka HRC kahi ana o ke kūʻē ʻana o kahi mea i ke komo ʻana a i ʻole ke komo ʻana. Hoʻohana ia i nā unahi like ʻole (A, B, C, etc.) e pili ana i ke ʻano hoʻāʻo kikoʻī a me ke ʻano o ka indenter i hoʻohana ʻia (cone daimana a i ʻole pōpō kila paʻakikī). Hoʻohana mau ʻia ka unahi HRC no ke ana ʻana i ka paʻakikī o nā mea metala. Hōʻike ʻia ka waiwai paʻakikī ma ke ʻano he helu ma ka pālākiō HRC, e like me HRC 50.

 

Hoʻohana maʻamau ʻo HV-HB-HRC papaʻaina hoʻohālikelike paʻakikī:

Papakaukau hoʻohālikelike paʻakikī ferrous metala maʻamau (kahi hoʻololi ikaika)
Hoʻokaʻawale paʻakikī

Ka ikaika tensile

N/mm2

Rockwell Vickers Brinell
HRC HRA HV HB
17 211 211 710
17.5 214 214 715
18 216 216 725
18.5 218 218 730
19 221 220 735
19.5 223 222 745
20 226 225 750
20.5 229 227 760
21 231 229 765
21.5 234 232 775
22 237 234 785
22.5 240 237 790
23 243 240 800
23.5 246 242 810
24 249 245 820
24.5 252 248 830
25 255 251 835
25.5 258 254 850
26 261 257 860
26.5 264 260 870
27 268 263 880
27.5 271 266 890
28 274 269 900
28.5 278 273 910
29 281 276 920
29.5 285 280 935
30 289 283 950
30.5 292 287 960
31 296 291 970
31.5 300 294 980
32 304 298 995
32.5 308 302 1010
33 312 306 1020
33.5 316 310 1035
34 320 314 1050
34.5 324 318 1065
35 329 323 1080
35.5 333 327 1095
36 338 332 1110
36.5 342 336 1125
37 347 341 1140
37.5 352 345 1160
38 357 350 1175
38.5 362 355 1190
39 70 367 360 1210
39.5 70.3 372 365 1225
40 70.8 382 375 1260
40.5 70.5 377 370 1245
41 71.1 388 380 1280
41.5 71.3 393 385 1300
42 71.6 399 391 1320
42.5 71.8 405 396 1340
43 72.1 411 401 1360
43.5 72.4 417 407 1385
44 72.6 423 413 1405
44.5 72.9 429 418 1430
45 73.2 436 424 1450
45.5 73.4 443 430 1475
46 73.7 449 436 1500
46.5 73.9 456 442 1525
47 74.2 463 449 1550
47.5 74.5 470 455 1575
48 74.7 478 461 1605
48.5 75 485 468 1630
49 75.3 493 474 1660
49.5 75.5 501 481 1690
50 75.8 509 488 1720
50.5 76.1 517 494 1750
51 76.3 525 501 1780
51.5 76.6 534 1815
52 76.9 543 1850
52.5 77.1 551 1885
53 77.4 561 1920
53.5 77.7 570 1955
54 77.9 579 1995
54.5 78.2 589 2035
55 78.5 599 2075
55.5 78.7 609 2115
56 79 620 2160
56.5 79.3 631 2205
57 79.5 642 2250
57.5 79.8 653 2295
58 80.1 664 2345
58.5 80.3 676 2395
59 80.6 688 2450
59.5 80.9 700 2500
60 81.2 713 2555
60.5 81.4 726
61 81.7 739
61.5 82 752
62 82.2 766
62.5 82.5 780
63 82.8 795
63.5 83.1 810
64 83.3 825
64.5 83.6 840
65 83.9 856
65.5 84.1 872
66 84.4 889
66.5 84.7 906
67 85 923
67.5 85.2 941
68 85.5 959
68.5 85.8 978
69 86.1 997
69.5 86.3 1017
70 86.6 1037

HRC/HB Hoʻololi Manaʻo Manaʻo

ʻOi aku ka paʻakikī ma mua o 20HRC, 1HRC≈10HB,
ʻOi aku ka paʻakikī ma mua o 20HRC, 1HRC≈11.5HB.
Manaʻo: No ka ʻoki ʻana i ka hana, hiki ke hoʻololi like ʻia me 1HRC≈10HB (ʻo ka paʻakikī o ka mea hana he ʻano loli)

 

ʻO ka paʻakikī o nā mea metala

ʻO ka paʻakikī e pili ana i ka hiki i kahi mea ke pale aku i ka hoʻololi kūloko, ʻoi aku ka deformation plastic, indentation a i ʻole scratching. He kuhikuhi ia e ana i ka palupalu a me ka paakiki o ka mea.

Wahi a nā ʻano hoʻokolohua like ʻole, ua māhele ʻia ka paʻakikī i ʻekolu ʻano.
ʻOʻoleʻa ʻōpala. Hoʻohana nui ʻia e hoʻohālikelike i ka palupalu a me ka paʻakikī o nā mineral like ʻole. ʻO ke ʻano o ke koho ʻana i ke koʻokoʻo me kekahi ʻaoʻao paʻakikī a ʻo kekahi ʻaoʻao palupalu, e hāʻawi i ka mea e hoʻāʻo ʻia ma ke koʻokoʻo, a e hoʻoholo i ka paʻakikī o ka mea e hoʻāʻo ʻia e like me ke kūlana o ka ʻōpala. Ma ka ʻōlelo kūpono, hana nā mea paʻakikī i nā ʻōpala lōʻihi a ʻo nā mea palupalu e hana pōkole.

ʻOʻoleʻa paʻa. Hoʻohana nui ʻia no nā mea metala, ʻo ke ʻano ka hoʻohana ʻana i kekahi ukana e kaomi i ka indenter i ʻōlelo ʻia i loko o ka mea e hoʻāʻo ʻia, a hoʻohālikelike i ka palupalu a me ka paʻakikī o ka mea e hoʻāʻo ʻia e ka nui o ka deformation plastic kūloko ma luna o ka ʻili. ka mea. Ma muli o ka ʻokoʻa o ka indenter, ka ukana a me ka lōʻihi o ka ukana, nui nā ʻano o ka paʻakikī indentation, ʻo ia hoʻi me Brinell hardness, Rockwell hardness, Vickers hardness and microhardness.

Paʻakiki hou. Hoʻohana nui ʻia no nā mea metala, ʻo ke ʻano o ka hāʻule ʻana o kahi hāmare liʻiliʻi kūikawā mai kahi kiʻekiʻe e hopena i ka hāpana o ka mea e hoʻāʻo ʻia, a hoʻohana i ka nui o ka ikehu kānana i mālama ʻia (a laila hoʻokuʻu ʻia) i ka hāpana i ka wā o ka hopena (ma ka hoʻihoʻi ʻana o ka hāmare liʻiliʻi) ke ana kiʻekiʻe lele) e hoʻoholo ai i ka paʻakikī o ka mea.

ʻO ka paʻakikī Brinell maʻamau, ka paʻakikī Rockwell a me ka paʻakikī Vickers o nā mea metala no ka paʻakikī indentation. ʻO ka waiwai paʻakikī e hōʻike ana i ka hiki o ka ʻili o ke kino ke pale aku i ka hoʻololi ʻana o ka plastic i hana ʻia e kekahi mea i kaomi ʻia i loko; C) e ana i ka paʻakikī, a ʻo ka waiwai paʻakikī e hōʻike ana i ka nui o ka hana hoʻololi elastic o ka metala.

ʻO Brinell Hardness

E hoʻohana i ka pōpō kila kinai ʻia a i ʻole ka pōpō huila paʻa me ke anawaena o D ma ke ʻano he indenter, e kaomi i ka ʻili o ka ʻāpana hoʻāʻo me ka ikaika hoʻāʻo like F, a ma hope o ka manawa paʻa i ʻōlelo ʻia, e hoʻoneʻe i ka ikaika hoʻāʻo e loaʻa kahi indentation me he anawaena o d. E puunaue i ka ikaika hoao ma ka ili o ka indentation, a o ka waiwai i loaa mai ka waiwai paakiki Brinell, a ua hoikeia ka hoailona e HBS a i ole HBW.

新闻用图3

ʻO ka ʻokoʻa ma waena o HBS a me HBW ka ʻokoʻa i ka indenter. HBS 'o ia ho'i ka indenter he pōpō kila pa'akiki, i ho'ohana 'ia no ke ana 'ana i nā mea me ka waiwai pa'akikī Brinell ma lalo o 450, e like me ke kila ha'aha'a, ka hao hina a me nā metala non-ferrous. HBW 'o ia ho'i, 'o ka indenter he carbide cemented, ka mea i ho'ohana 'ia no ke ana 'ana i nā mea me ka waiwai pa'akikī Brinell ma lalo o 650.

No ka poloka ho'āʻo hoʻokahi, inā like nā kūlana hoʻokolohua ʻē aʻe, ʻokoʻa nā hopena o nā hoʻokolohua ʻelua, a ʻoi aku ka nui o ka waiwai HBW ma mua o ka waiwai HBS, a ʻaʻohe kānāwai quantitative e hahai.

Ma hope o ka makahiki 2003, ua hoʻokō like koʻu ʻāina i nā kūlana o ka honua, ua kāpae i nā mea hoʻokomo pōpō kila, a me nā poʻo pōpō carbide i hoʻohana ʻia. No laila, ua hoʻopau ʻia ka HBS, a ua hoʻohana ʻia ʻo HBW e hōʻike i ka hōʻailona paʻakikī Brinell. I nā manawa he nui, hōʻike wale ʻia ka paʻakikī Brinell ma HB, e pili ana iā HBW. Eia naʻe, ʻike ʻia ka HBS i kēlā me kēia manawa ma nā pepa palapala.

He kūpono ke ʻano ana paʻakikī ʻo Brinell no ka hao hao, nā mea hao non-ferrous, nā kila annealed a me nā mea i hoʻopaʻa ʻia, a ʻaʻole kūpono no ka hoʻāʻo ʻana i nā laʻana a i ʻole.ʻāpana hoʻohuli cncʻo ia ka paʻakikī, liʻiliʻi loa, ʻeleʻele loa, a i ʻole ʻae ʻole i nā kaha nui ma ka ʻili.

ʻO Rockwell Hardness

E hoʻohana i ka cone daimana me ka huina cone o 120° a i ʻole Ø1.588mm a me Ø3.176mm i pio kila pōlele e like me ka indenter a me ka ukana e hui pū me ia. ʻO ka ukana mua he 10kgf a ʻo ka ukana holoʻokoʻa he 60, 100 a i ʻole 150kgf (ʻo ia hoʻi, ka ukana mua me ka ukana nui). Hōʻike ʻia ka paʻakikī e ka ʻokoʻa ma waena o ka hohonu indentation i ka wā e wehe ʻia ai ka ukana nui a me ka hohonu indentation i ka wā e paʻa ai ka ukana nui a me ka hohonu indentation ma lalo o ka ukana mua ma hope o ka hoʻohana ʻana i ka ukana holoʻokoʻa.

新闻用图1

 

   Hoʻohana ka hoʻāʻo paʻakikī ʻo Rockwell i ʻekolu mau kaha hoʻāʻo a me ʻekolu indenters. He 9 hui o ia mau mea, e like me na unahi 9 o ka paakiki o Rockwell. ʻO ka hoʻohana ʻana o kēia mau lula 9 e uhi i nā mea metala maʻamau. ʻEkolu ʻekolu HRA, HRB a me HRC, ma waena o ka HRC ka mea hoʻohana nui loa.

Hoʻohana mau ʻia ʻo Rockwell hardness test table specification:

ʻoʻoleʻa
hōʻailona

ʻAno poʻo
Huina hoao holookoa
F/N(kgf)

ʻoʻoleʻa
laulā

Nā laʻana noi
HRA
120°
cone daimana
588.4(60)
20~88

ʻO ka carbide, carbide,
ʻO ka pahu pāpaʻu i hoʻopaʻa ʻia i ke kila a me nā mea ʻē aʻe.

HRB
Ø1.588mm
pōpō kila kinai
980.7(100)
20~100

ʻO Annealed, kila maʻamau, aluminika
Ke gula, ka hao keleawe, ka hao

HRC
120°
cone daimana
1471(150)
20~70

kila paʻakikī, kila kinai ʻia, hohonu
pae pahu kila paʻa

 

   ʻO ka laulā o ka hoʻohana ʻana i ka pālākiō HRC ʻo 20 ~ 70HRC. Ke emi ka waiwai paakiki ma mua o 20HRC, no ka mea, o ka conicalalumini cnc machining hapapaʻi nui ʻia ka indenter, emi ka naʻau, a pono e hoʻohana ʻia ka unahi HRB; ke ʻoi aku ka paʻakikī o ka hāpana ma mua o 67HRC, ʻoi aku ka nui o ke kaomi ʻana ma ka piko o ka indenter, a ua maʻalahi ka pōʻino o ke daimana. E hoʻopōkole loa ʻia ke ola o ka indenter, no laila e hoʻohana maʻamau ka pālākiō HRA.

He mea maʻalahi, wikiwiki, a liʻiliʻi ka hoʻāʻo ʻana o ka paʻakikī ʻo Rockwell, a hiki ke hoʻāʻo i ka ʻili o nā huahana i hoʻopau ʻia a me nā mea hana paʻa a lahilahi. Ma muli o ka liʻiliʻi indentation, no nā mea me ka uneven hale a me ka paakiki, ka paakiki waiwai fluctuates nui, a me ka pololei, aole e like me ka Brinell paakiki. Hoʻohana ʻia ka paʻakikī ʻo Rockwell e hoʻoholo ai i ka paʻakikī o ke kila, nā metala non-ferrous, nā ʻāpana paʻakikī, etc.

Vickers Hardness Vickers Hardness
Ua like ke kumu o ke ana paakiki o Vickers me ko Brinell paakiki. E hoʻohana i ka indenter pyramid square diamond me kahi kihi i hoʻokomo ʻia o 136° e kaomi i ka ʻili o ka mea me ka ikaika hoʻāʻo F, a wehe i ka ikaika hoʻāʻo ma hope o ka mālama ʻana i ka manawa i ʻōlelo ʻia. Hōʻike ʻia ka paʻakikī e ka ʻawelike kaomi ma ka ʻāpana ili o ka indent pyramid square. ʻO ka waiwai, ʻo ka hōʻailona hōʻailona he HV.

新闻用图2

   He nui ke ana paakiki o Vickers, a hiki ke ana i na mea me ka paakiki mai 10 a 1000HV. He liʻiliʻi ka indentation, a hoʻohana maʻamau ia e ana i nā mea ʻoi aku ka lahilahi a me nā papa paʻakikī i luna e like me ka carburizing a me ka nitriding.

Leeb Paʻakikī Leeb Paʻakikī
E hoʻohana i kahi kino hopena me kahi poʻo pōpō tungsten carbide e hoʻopā i ka ʻili o ka ʻāpana hoʻāʻo ma lalo o ka hana a kekahi ikaika, a laila hoʻihoʻi hou. Ma muli o ka ʻokoʻa o ka paʻakikī o nā mea, ʻokoʻa ka wikiwiki o ka rebound ma hope o ka hopena. Hoʻokomo ʻia kahi magnet paʻa ma ka ʻaoʻao hopena. Ke neʻe ke kino hopena i luna a i lalo, e hoʻoulu ʻia kona ʻōwili peripheral i kahi hōʻailona electromagnetic e like me ka wikiwiki, a laila hoʻololi iā ia i waiwai paʻakikī Leeb ma o kahi kaapuni uila. Hōʻailona ʻia ka hōʻailona e like me HL.

ʻAʻole pono ka Leeb hardness tester i kahi papa hana, a ʻo kāna mea ʻike paʻakikī e like me ka peni, hiki ke hana pololei ʻia e ka lima, a hiki ke ʻike maʻalahi inā he mea hana nui, kaumaha a i ʻole kahi mea hana me nā ana geometric paʻakikī.

ʻO kekahi pōmaikaʻi ʻē aʻe o Leeb paʻakikī ʻo ia ka liʻiliʻi o ka pōʻino i ka ʻili o ka huahana, a i kekahi manawa hiki ke hoʻohana ʻia e like me ka hoʻāʻo ʻole luku; ʻokoʻa ia i nā hoʻāʻo paʻakikī ma nā ʻaoʻao āpau, nā ākea ākea a kūikawāʻāpana alumini.

 

Hoʻopili ʻo Anebon i ka ʻōlelo ʻo "Honest, hoʻoikaika, hoʻoikaika, hana hou" e loaʻa mau i nā hopena hou. Manaʻo ʻo Anebon i nā manaʻo, ʻo ka kūleʻa e like me kāna kūleʻa pilikino. E hana ʻo Anebon i ka lima maikaʻi i ka wā e hiki mai ana no nā ʻāpana mīkini keleawe a me nā ʻāpana cnc titanium paʻakikī. Loaʻa iā Anebon nā lako waiwai piha a ʻo ke kumukūʻai kūʻai aku ko mākou pono. Welina mai e nīnau e pili ana i nā huahana a Anebon.

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Ka manawa hoʻouna: Mei-18-2023
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