Xaiv qhov zoo tshaj plaws pob zeb kuaj cov cav tov rau kev tsim kho kom zoo tswj yuav tsum tau soj ntsuam load ncej structural stiffness, servo-hydraulic kaw-loop tswj raug, thiab ua raws liASTM C39thiabTS EN 12390qauv. Cov lus qhia dav dav no qhia txog cov txheej txheem kev xaiv cov txheej txheem, kev ua haujlwm ntawm cov tshuab ua haujlwm, kev sib koom ua haujlwm ua haujlwm tsis siv neeg, thiab kev ua haujlwm zoo tshaj plaws tsim los txhawb kev tswj kom zoo hauv kev lag luam thiab pej xeem cov phiaj xwm.
Cov qauv kev ncaj ncees, lub neej ntev, thiab tag nrho kev nyab xeeb ntawm niaj hnub engineering engineering tej yaam num nyob rau hauv lub hauv paus ntawm precision ntawm cov khoom characterization ua thaum lub sij hawm tsim kho. Cov pob zeb yog qhov sib txawv ntawm qhov sib txawv, nthuav tawm cov kev coj ua uas sib txawv raws li kev faib tawm tag nrho, dej-cement piv, curing ib puag ncig, thiab tshuaj lom neeg sib xyaw. Yog li ntawd, kev txheeb xyuas thiab siv cov cuab yeej ua vaj tse zoo tshaj plaws tsis yog tsuas yog kev yuav khoom rau pab pawg ua pov thawj zoo; nws yog ib qho tseem ceeb ntawm engineering uas yuav tsum tau tiv thaiv mega-structures tiv thaiv cov qauv ua tsis tau tejyam thiab raug nqi retrofits. Cov cuab yeej kuaj xyuas raug hloov pauv cov khoom siv coj los ua kev ntsuas kev ntsuas kom ntseeg tau, kom ntseeg tau tias txhua qhov khoom siv tau muab tso rau ntawm qhov chaw txaus siab rau kev tsim qauv tsim qauv nruj.
Kev tswj hwm kev ua haujlwm zoo thoob plaws hauv kev tsim vaj tsev hnyav, lub tsev siab siab, thiab cov chaw tsim khoom ua ntej tso siab rau cov khoom siv hluav taws xob siab kom ua tiav kev ntsuas kev puas tsuaj thiab tsis muaj kev puas tsuaj. Los ntawm kev txiav txim siab qhov kawg compressive lub zog los saib xyuas lub sij hawm ntev elastic deformation thiab flexural toughness, niaj hnub kuaj yuav tsum tau kho vajtse muaj peev xwm ntawm kev khiav hauj lwm tsis tu ncua nyob rau hauv lub siab hnyav tsis poob calibration kev ncaj ncees. Siv cov txheej txheem electro-hydraulic compression thav duab, high-speed digital controllers, thiab kev sib koom ua haujlwm hauv kev tswj xyuas software, pej xeem engineers tuaj yeem tsim pob tshab, tshawb xyuas cov ntaub ntawv ua raws. Ua kom tiav qib ntawm kev ntsuas qhov tseeb no yuav tsum muaj kev nkag siab tob txog kev siv tshuab tshuab, hydraulic tswj, kev sib dhos geometry, thiab cov txheej txheem tswj hwm thoob ntiaj teb.
Cov txheej txheem tseem ceeb rau kev ntsuam xyuas cov khoom siv ntsuas cov khoom siv
Kev xaiv cov cuab yeej ua tau zoo tshaj plaws yog pib nrog kev soj ntsuam nruj me ntsis ntawm cov ncej ntawm cov txheej txheem nruj thiab muaj peev xwm nqus tau lub zog. Standard compression test imposes loj axial rog ntawm cov pob zeb ua piv txwv, ua kom muaj zog loj nyob rau hauv ob qho tib si cov qauv thiab lub tshuab vaj tsev. Cov khoom tsis zoo lossis cov khoom ua tau zoo dhau los khaws cov zog elastic ntau dhau thaum lub sijhawm thauj khoom, uas tso tawm nruj heev thaum lub sijhawm cov khoom pov thawj, tawg cov qauv thiab ua rau tsis pom qhov tseem ceeb ncov-load thiab cov ntaub ntawv tom qab lub ncov deformation. High-rigidity plaub-kem los yog welded monolithic lub thawv thav duab txo cov ncej deformation, kom ntseeg tau tias cov ntaub ntawv hloov pauv ncaj qha mus rau hauv cov qauv qauv tseeb.
Kev ua raws li cov qauv ntsuas thoob ntiaj teb sawv cev rau lwm qhov kev ntsuam xyuas yuav tsum tau ua rau cov thawj coj hauv chav kuaj thiab cov kws ua haujlwm ua haujlwm. Cov tshuab kuaj muaj peev xwm siab yuav tsum ua raws li cov qauv zoo liASTM C39rau compressive zog ntawm cylindrical qhob qauv, EN12390‑4rau compression kuaj tshuab ncej specifications, thiabISO 7500-1rau nro thiab compression tshuab calibration. Txhawm rau tsim kom muaj kev lag luam thoob ntiaj teb raug cai thiab ua kom muaj kev nyab xeeb hluav taws xob thiab hluav taws xob tiv thaiv hluav taws xob hauv cov chaw kuaj mob hnyav, cov khoom siv tshuaj ntsuam xyuas sab saum toj yuav tsum tau txais kev txhawb nqa los ntawm cov neeg ua haujlwm.CE daim ntawv pov thawjcov ntaub ntawv. Kev nqis peev hauv cov khoom siv tau ntawv pov thawj tag nrho txo qis kev ua haujlwm poob qis, tiv thaiv cov kws tshaj lij hauv chav kuaj los ntawm hluav taws xob lossis cov khoom siv hluav taws xob, thiab lav tias cov ntaub ntawv ntsuam xyuas tiv thaiv kev cai lij choj thiab kev tswj xyuas nruj heev thaum tshawb xyuas qhov project.
Servo-Hydraulic Pacing Precision thiab Kaw-Loop Control Architecture
Cov txheej txheem tseem ceeb ntawm kev tsav tsheb niaj hnub ntsuas qhov tseeb yog nyob rau hauv lub pob hluav taws xob hydraulic thiab nws cov kev tswj hwm digital. Cov txheej txheem kuaj qub qub tau tso siab rau ntawm phau ntawv koob li qub, xav tau cov kws tshaj lij los kho cov roj ntws los ntawm tes kom phim cov ntsuas qhov muag pom. Qhov no qhia txog kev hloov pauv loj ntawm tus neeg teb xov tooj, raws li kev tswj hwm qhov kev ntxhov siab tas li ntawm 0.15 MPa / s thiab 0.35 MPa / s- raws li tau hais los ntawmASTM C39-yog qhov nyuaj heev los txhawb nqa los ntawm tes thaum lub sij hawm cov qauv tawg. Cov cuab yeej tshaj lij niaj hnub siv kaw-loop PID servo-hydraulic tswj tshuab uas dynamically nyeem load sensor tawm tswv yim ntau txhiab zaus hauv ib ob, txiav txim siab hloov pauv hloov twj tso kua mis lossis qhov sib npaug li qub kom tswj tau cov ntaub ntawv meej meej.
Advanced kaw-loop systems cia li them rov qab rau cov kev hloov hauv hydraulic roj kub, kua viscosity hloov, thiab mechanical seal kev sib txhuam thaum ncua kev sim hloov. Qhov kev tawm tswv yim txuas ntxiv no tiv thaiv kev thauj khoom sai sai lossis poob qis, kom ntseeg tau tias qhov kev ntxhov siab thov tseem nruj me ntsis mus txog qhov tsis ua haujlwm ntawm cov qauv. Thaum nthuav dav cov peev txheej hauv chav kuaj los npog cov kev qhuab qhia nyob ib puag ncig, cov neeg saib xyuas zoo feem ntau ua ke cov tshuab compression automated nrog cov khoom ntxiv.Cov khoom siv kuaj pob zeb kev teeb tsa los ua tus qauv ntsuas cov txheej txheem ntsuas thoob plaws txhua qhov kev ntsuam xyuas tshiab thiab tawv tawv.
Spherical Seating Geometry, Platen Hardness, thiab Alignment Compliance
Lub ciam txheej ntawm lub tshuab loading platen thiab cov qauv saum npoo sawv cev yog ib qho kev ntsuas qhov yuam kev hauv cov chaw ua vaj tse. Upper platens yuav tsum muaj precision-engineered spherical zaum rooj sib txoos uas tso cai rau lub platen kom ywj siab tig thiab nws tus kheej-aligns thaum xub thawj hu rau tsis yog-parallel specimen caps. Thaum pib kev sib cuag thiab axial loading pib, lub rooj zaum kheej kheej yuav tsum kaw kom ruaj ntseg nyob rau hauv txoj hauj lwm los tiv thaiv lateral zawv zawg los yog tsis sib xws strain concentration thoob plaws lub ntsej muag. Tsis tas li ntawd, platens yuav tsum tau tsim los ntawm cov cuab yeej hardened steel nrog qhov tsawg kawg nkaus hardness ntawm 55 HRC, tiv thaiv lub zos pitting los yog deg indentation los ntawm high-strength aggregate particles thaum lub sij hawm rov mus kuaj.
High-rigidity plaub-kem electro-hydraulic qhob compression ncej featuring lub kaw- voj servo tswj chav tsev thiab pob tshab hnyav- lub luag haujlwm kev nyab xeeb.
Kev sib piv kev soj ntsuam ntawm Kev Ntsuas Ncej Configurations thiab System Applications
Kev xaiv cov cuab yeej siv tau zoo tshaj plaws yuav tsum muaj kev sib txuam ntawm lub tshuab thauj khoom, qhov ntev ntawm kev tshem tawm, thiab tsav cov txheej txheem rau kev ua haujlwm tshwj xeeb ntawm qhov chaw sim. Cov chaw soj ntsuam kev lag luam tuav cov khoom ntim siab niaj hnub ntsuas lub tog raj kheej yuav tsum tau ceev-txoj kev mus rau hydraulic lub tog raj kheej thiab automated specimen centering jigs kom ua kom tiav txhua hnub. Piv txwv li, cov chaw tshawb fawb thiab cov chaw ua haujlwm hnyav hnyav yuav tsum muaj ntau lub tshuab ua haujlwm uas muaj peev xwm ua tau qhov kev sim ua rau qaug zog, kev ntsuam xyuas elastic modulus, thiab qhov muaj peev xwm qis qis qis hauv ib qho kev sib koom ua ke.
Txhawm rau pab cov thawj coj hauv kev txhim kho lawv qhov chaw sim khoom, cov lus hauv qab no qhia txog cov qauv kev ua haujlwm tseem ceeb thiab lub hom phiaj ntawm daim ntawv thov profile rau cov qauv ntsuas kev teeb tsa siv thoob plaws hauv kev tsim kho vaj tse thiab kev tsim kho kom zoo.
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Qeb khoom siv |
Force Capacity Range |
Tswj & Pacing Hom |
Daim phiaj siv |
Thawj Tswj Hwm Standards |
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Tsis Siv Neeg Compression Frames |
2000 kN - 3000 kN |
Kaw-Loop Servo-Hydraulic |
Txheem lub tog raj kheej & lub voos xwmfab Compressive zog |
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Flexural & Tensile Ncej |
100 kN - 300 kN |
Electro-Mechanical / Servo-Hydraulic |
Qhob Beams, Kerbs, Paving Flags & Vuas |
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Multi-Frame Universal Systems |
1000 kN - 5000 kN |
Multi-Channel Computer Control |
Modulus ntawm Elasticity, Spliting Tensile, Steel Rebar |
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Kev Tshawb Fawb Txog Kev Muaj Peev Xwm Siab |
5000 kN-10000 kN |
High-Speed Servo-Valve Pacing |
Ultra-High-Performance Concrete (UHPC), Cov Kab Ke |
Tshwj xeeb Project & University Research Standards |
Multi-Discipline Material Integration thiab Load Frame Versatility
Kev tsim kho kev ruaj ntseg zoo tsis tshua pom tshwj xeeb rau cov pob zeb ua pob zeb. Niaj hnub nimno structural installation cia siab rau ib tug complex network ntawm interconnected structural cov ntaub ntawv, xws li steel reinforcement bars, prestressing tendons, structural mortars, thiab subgrade foundations. Cov cuab yeej tsim los ntsuas cov txheej txheem ua tiav feem ntau suav nrog ntau lub hom phiajUniversal Test Machinetxhawm rau ua kom muaj peev xwm tensile xeem ntawm steel rebar nrog rau cov qauv compressive qhob crushing xeem. Kev sib koom ua ke ntau yam khoom siv ntsuas hauv ib qho kev tswj hwm digital tswj hwm kev cob qhia cov kws tshaj lij thiab koom ua ke cov txheej txheem qhia txog kev soj ntsuam.
Lub tswv yim kuaj cov khoom siv holistic yuav tsum muaj kev lees paub txhua yam raw khoom hauv qhov sib xyaw ua ke ntev ua ntej batching pib. Xuab zeb, pob zeb, thiab pob zeb crushed yuav tsum tau ua tib zoo soj ntsuam lub cev thiab cov tshuab siv tshwj xeeb.Pob Zeb Thiab Cov Khoom Siv Sib Twtxhawm rau txiav txim siab qhov sib xyaw ua ke, Los Angeles abrasion resistance, thiab particle shape indices. Concurrently, binder kev ua tau zoo yuav tsum tau paub tseeb tias sivCov Khoom Siv Cement Testlos soj ntsuam fineness, teem sij hawm, thiab suab zog, kom ntseeg tau tias cov khoom xyaw raw yuav tsim kom muaj zog sib raug zoo nyob rau hauv lub matrix.
Pavement and Subbase Infrastructure Evaluation Networks
Txuas ntxiv cov kev tswj xyuas kom zoo rau kev thauj mus los infrastructure yuav tsum tau nthuav dav analytical muaj peev xwm tshaj li structural cov ntsiab lus. Pavement designs suav nrog bituminous txheej txheej so ntawm cov av npaj subgrades thiab aggregate hauv paus kev kawm. Ua kom ntseeg tau txoj kev loj mus ntev yuav tsum tau soj ntsuam cov ntaub ntawv rheology thiab Marshall stability siv lub siabAsphalt Test Equipment.Tsis tas li ntawd, subgrade compaction, bearing peev, thiab noo noo-density kev sib raug zoo yuav tsum tau tsim los ntawm precisionAv Test Equipmentkev teeb tsa, tsim kom muaj kev tswj hwm kev ua tiav zoo uas npog txhua txheej los ntawm kev hloov mus rau kev hnav khaub ncaws.
Software Automation, Audit Trails, thiab Digital Laboratory Workflows
Nyob rau hauv niaj hnub kev tswj kom zoo, cov software pob nrog lub pob zeb kuaj tshuab yog ib qho tseem ceeb raws li lub load ncej tus neeg kho tshuab rigidity. Niaj hnub nimno software platforms ua raws li qhov chaw nruab nrab rau kev sim teeb tsa, ua tiav, khaws cov ntaub ntawv, thiab kev txheeb xyuas kev txheeb xyuas. Advanced software interfaces tso cai rau cov neeg ua haujlwm ua ntej txhais cov qauv ntsuas ntsuas raws li ASTM lossis EN cov cai tshwj xeeb, tau txais kev teeb tsa tus nqi pacing, qhov ntsuas qhov ntev, qhov ntsuas qhov tsis ua haujlwm, thiab kev hloov pauv chav tsev. Automated cov ntaub ntawv ntes tshem tawm tib neeg kev ua yuam kev cuam tshuam nrog kev tuav cov ntaub ntawv, kom ntseeg tau tias qhov siab tshaj plaws ntawm kev thauj khoom, kev ntxhov siab ntawm kev ua tsis tiav, thiab kev faib hom kev faib tawm raug kaw kom raug thiab mus tas li.
Traceability thiab cov ntaub ntawv ncaj ncees yog qhov tseem ceeb rau kev lag luam chaw soj nstuam ua haujlwm nyob rau hauvISO / IEC 17025 Kev Tswj Xyuas Kev Lag Luamcov qauv kev lees paub. Niaj hnub nimno tshuab software suav nrog ntau theem kev nkag mus rau cov neeg siv kev tswj hwm, tshawb xyuas txoj kev nkag mus, thiab encrypted database cia los tiv thaiv kev hloov pauv tsis raug cai ntawm cov ntaub ntawv xeem raw. Ua-nyob rau hauv exporting muaj peev xwm tso cai seamless kev koom ua ke nrog Laboratory Information Management Systems (LIMS), enabling instant kis tau tus mob daim ntawv pov thawj mus rau qhov project managers, structural engineers, thiab site supervisors. Real-time graphical qhia zaj duab xis load-vim-lub sij hawm thiab kev ntxhov siab-vim-strain curves thaum lub sij hawm sim, tso cai rau cov kws kho mob tam sim ntawd txheeb xyuas tus cwj pwm tsis zoo, xws li cov qauv plam lossis ntxov ntxov ntawm ntug spalling.
Tus neeg siv interface Ergonomics, Cov ntaub ntawv pom kev, thiab kev cuam tshuam kev nyab xeeb
Tus neeg siv interface tsim ncaj qha cuam tshuam rau kev ua haujlwm ntawm kev ua haujlwm thiab kev nyab xeeb hauv qhov ntsuas qhov ntsuas siab. Niaj hnub nimno tshuab consoles siv tshuaj-resistant, muaj touchscreen qhia featuring yooj yim graphical menus uas txo cov kev kawm yuav tsum tau rau cov tshiab tswv. Cov lus qhia pom lub sijhawm tiag tiag muab cov xwm txheej hloov kho kom pom tseeb, qhia cov kab kev nce qib nrawm nrawm, nyeem ntawv nyob hauv lub zog, thiab ntsuas qhov ntsuas tsis tau dhau / tsis ua haujlwm. Kev nyab xeeb yog ntxiv dag zog los ntawm cov khoom siv-theem kev ruaj ntseg interlocks, pob tshab polycarbonate fragment shields, thiab hydraulic txwv keyboards uas txiav fais fab mus rau lub ntsiab twj tso kua mis tam sim ntawd yog hais tias ib tug over-mus ncig los yog kev nyab xeeb qhov rooj qhib tshwm sim thaum lub sij hawm high-pressure loading cycles.
Kev Ua Haujlwm Zoo Tshaj Plaws, Calibration Protocols, thiab Kev Tiv Thaiv Kev Tiv Thaiv
Kev tuav lub sijhawm ntev, kev ntseeg tau ntawm cov qauv, thiab kev ntsuas qhov tseeb hauv cov tshuab kuaj pob zeb yuav tsum tau ua raws li cov txheej txheem kev tiv thaiv kev tiv thaiv. Kev ua haujlwm ib puag ncig hauv civil engineering labs yog qhov muaj plua plav thiab xav tau, nthuav tawm cov khoom siv zoo thiab cov tshuab hydraulic rhiab rau cov pob zeb ua pob zeb. Tsim kom muaj cov txheej txheem niaj hnub, txhua lub limtiam, thiab kev saib xyuas txhua hli kom ntseeg tau tias cov khoom siv ua haujlwm nyob rau hauv kev ntsuas kev ua haujlwm siab thaum tiv thaiv kev puas tsuaj tsis txaus ntseeg thaum lub sijhawm ua haujlwm siab tshaj plaws.
Hydraulic kua tswj yog ib qho tseem ceeb tshaj plaws uas cuam tshuam rau servo-hydraulic valve lub neej ntev thiab kev xa hluav taws xob zoo. Cov roj hydraulic yuav tsum tau saib xyuas tsis tu ncua rau cov kab mob sib kis, noo noo ingress, thiab thermal degradation. Hloov cov lim dej rov qab los ntawm kev pom zoo ib ntus thiab teem caij ua kom tiav cov roj flushes tiv thaiv micro-particle build-up uas tuaj yeem kaw qhov sib npaug li qub lossis qhab nia hydraulic ram nto. Tsis tas li ntawd, cov kws tshaj lij yuav tsum ua kom cov thav duab nyob ib puag ncig kom huv si, siv cov cua compressed thiab cov tshuab nqus tsev kom cov pob zeb ua kom cov plua plav tawm ntawm cov khoom siv hluav taws xob, cov kab hluav taws xob hloov pauv, thiab cov twj tso kua mis.
Metrological Traceability, Load Cell Calibration, thiab Ncej Txheeb Xyuas
Qhov system calibration yuav tsum tau ua tsawg kawg ib xyoos ib zaug los ntawm ib qho kev lees paub metrology kev pab cuam uas siv high-accuracy strain-gauge load rings los yog master load cells traceable rau lub teb chaws ntsuas lub koom haum. Cov txheej txheem calibration yuav tsum txheeb xyuas qhov tseeb ntawm lub tshuab tag nrho cov kev khiav hauj lwm spectrum, tswj qhov kev ua yuam kev zoo nyob rau hauv chav kawm 1 txwv (feem ntau ± 1% ntawm qhov taw qhia load mus rau 1% lossis 2% ntawm tag nrho cov nplai). Yog tias lub tshuab tau txais kev hloov pauv hydraulic loj, kev pabcuam ntawm lub xovtooj, lossis kev hloov pauv lub cev, kev rov kho dua tam sim yog qhov yuav tsum tau ua ua ntej xa rov qab mus rau qhov kev pabcuam lag luam.
Ntxiv nrog rau kev txheeb xyuas qhov yuam kev, kev kuaj xyuas cov txheej txheem ib ntus yuav tsum xyuas kom meej tias cov platens sab saud thiab qis qis nyob rau tib lub sijhawm thiab tsis muaj kev sib tw hauv qab load. Platen nto yuav tsum tau soj ntsuam rau flatness siv precision straightedges thiab feeler gauges, kom ntseeg tau tias tag nrho cov planarity sib txawv tsis tshaj 0.05 mm nyob rau hauv tag nrho cov platen txoj kab uas hla. Thaum cov platens nthuav tawm cov qhab nia saum npoo, pitting, lossis kev poob qis, lawv yuav tsum tau rov ua dua lossis hloov tam sim kom tsis txhob qhia cov kev ntxhov siab tsis sib xws rau hauv cov qauv kuaj pob zeb.
Cov Qauv Npaj Cov Qauv thiab Cov Txheej Txheem Ua Haujlwm Ntxiv Ntxiv
Kev ntseeg tau ntawm kev nyeem ntawv lub zog yog nyob ntawm qhov hnyav ntawm cov qauv kev npaj ua ntej thauj khoom. Lub tog raj kheej kawg yuav tsum tiaj tus, perpendicular mus rau lub longitudinal axis, thiab tsis muaj kev nyuaj siab nto. Cov chaw soj nstuam nquag siv cov tshuaj sulfur capping, high-precision nto grinders, los yog unbonded elastomeric ncoo capping tshuab kom ua tiav qhov kev txiav txim siab. Txhawb nqa cov qauv kev npaj ua haujlwm yuav tsum muaj zogKhoom siv kuajthiabCov khoom siv dav davcov peev txheej, xws li cov khoom siv kho cov tso tsheb hlau luam, cov tub ntxhais xyaum xyaum, capping fixtures, thiab high-precision digital calipers, kom ntseeg tau tias txhua tus qauv nkag mus rau hauv lub tshuab ntsuas kom txaus siab rau cov qauv geometrical nruj.
Summary and Recommendations for Quality Assurance Laboratories
Kev txhim kho kev tsim kho kom zoo los ntawm kev sim cov tshuab ua vaj tse yuav tsum muaj kev sib npaug ntawm cov txheej txheem kev nruj, servo-hydraulic pacing precision, niaj hnub software kev koom ua ke, thiab kev tswj xyuas nruj. Kev nqis peev nyob rau hauv high-stiffness plaub-kem thav duab uas nruab nrog kaw-loop PID digital tswj tshem tawm tus neeg teb xov tooj-induced variance, kom ntseeg tau tias compressive zog cov ntaub ntawv tseem meej, rov ua dua, thiab ua rawsASTM C39thiabTS EN 12390qauv. Cov khoom siv uas ua ke cov cuab yeej muaj zog nrog cov qauv kev lees paub zoo tsim lub hauv paus rau kev txhim khu kev qha, kev tshuaj xyuas npaj ua haujlwm.
Txhawm rau kom ua tiav cov nyiaj rov qab los ntawm kev nqis peev, cov thawj coj hauv chav kuaj yuav tsum xaiv cov kev sim hloov pauv uas muaj peev xwm loj hlob nrog rau kev nthuav dav cov kev xav tau. Xaiv cov cuab yeej txhawb nqa los ntawm kev lees paub thoob ntiaj teb cov ntaub ntawv ua raws cai, xws li cov ntaub ntawv pov thawj CE, muab kev thaj yeeb nyab xeeb txog kev nyab xeeb hluav taws xob thiab lub tshuab ua haujlwm ntev. Kev sib xyaw ua ke muaj peev xwm compression thav duab nrog kev sib sau ua ke, cement, av, thiab asphalt kuaj teeb tsa tsim kom tiav, qhov kawg-rau-kawg kev soj ntsuam cov khoom muaj peev xwm tuav cov kev xav tau ntawm kev tsim vaj tsev engineering.
Cov lus nug nquag nug (FAQ)
Dab tsi yog qhov pom zoo load peev xwm rau tus qauv coj mus muag pob zeb compression tshuab?
Rau cov qauv 150 hli (6-nti) pob zeb thiab 150 × 300 hli (6 × 12-nti) lub tog raj kheej, lub tshuab muaj peev xwm ntawm 2000 kN thiab 3000 kN (kwv yees . 450,000 txog 670,000 lbf) yog pom zoo. Lub peev xwm no tso cai rau kev sim siab-lub zog pob zeb sib tov txog li 100 MPa lossis siab dua yam tsis muaj kev khiav haujlwm hydraulic ntawm nws qhov kev txwv tsis pub muaj zog.
Yuav ua li cas kaw-loop servo-hydraulic pacing txhim kho kev sim compressive?
Kaw-loop servo-hydraulic systems tsis tu ncua ntsuas lub sijhawm ntawm lub sijhawm quab yuam cov ntaub ntawv los ntawm cov khoom siv thauj khoom thiab kho cov roj hydraulic tam sim ntawd siv micro-processor tswj. Qhov no ua kom ntseeg tau tias daim ntawv thov kev ntxhov siab nruj tswj hwm tus qauv-tsim pacing ntau yam (piv txwv li, 0.15 txog 0.35 MPa / s hauv qab ASTM C39), tiv thaiv kev ntxhov siab tam sim ntawd lossis kev hloov kho phau ntawv uas cuam tshuam lub zog.
Vim li cas sab saum toj platen spherical zaum tig tseem ceeb ua ntej daim ntawv thov load?
Lub rooj zaum kheej kheej tso cai rau lub platen sab sauv tig ywj siab thaum xub thawj kev sib cuag nrog cov qauv pob zeb, them nyiaj rau cov me me uas tsis yog-parallelism ntawm lub kaus mom sab saum toj thiab hauv qab. Thaum pib qhov chaw thau khoom pib, lub rooj zaum xauv rau hauv qhov chaw kom tswj tau lub dav hlau sib luag, tiv thaiv kev ntxhov siab hauv cheeb tsam uas ua rau ntxov ntxov, tsis yog tus sawv cev tsis ua haujlwm.
Ntev npaum li cas yuav tsum tau ua cov twj tso kua mis compression kuaj?
Cov tshuab ua pob zeb yuav tsum tau ua raws li kev ntsuas tsawg kawg ib zaug txhua 12 lub hlis raws li ISO / IEC 17025 thiab ASTM E4 / EN ISO 7500-1 cov qauv. Kev rov kho dua tam sim no yuav tsum tau ua raws li kev saib xyuas lub tshuab loj, hloov pauv hloov hydraulic, hloov chaw, lossis kev cuam tshuam ntawm cov qauv.
Dab tsi yog qhov sib txawv ntawm qhov kev ntsuam xyuas lub tog raj kheej thiab cov pob zeb ua vaj tse?
Lub tog raj kheej (feem ntau nyob rau hauv North America thiab Asia raws li ASTM cov qauv) yuav tsum tau capping los yog kawg-sib tsoo kom ntseeg tau tias lub hom phiaj loading ntsej muag thiab feature ib tug 2: 1 qhov siab-rau-inch ratio. Cubes (feem ntau nyob rau hauv cov teb chaws Europe raws li EN cov qauv) yog cam khwb cia hauv precision hlau pwm thiab kuaj ntawm lawv du cam khwb cia sab yam tsis muaj capping. Cubes yield me ntsis siab dua qhov pom tseeb compressive zog qhov tseem ceeb tshaj lub tog raj kheej cam khwb cia los ntawm tib qho kev ua vaj tse vim yog platen restraint cuam tshuam rau luv luv specimen geometries.
Yog xav paub ntxiv txog cov khoom lag luam, kev qhia tshwj xeeb, lossis kev sib tham nrog cov kws tshaj lij ntawm peb cov cuab yeej ntsuas asphalt siab heev, thov hu rau peb pab neeg tshwj xeeb hnub no ntawmZhuozhou Tianpeng