HARDNESS TESTERS MUSEUM
The Museum was unsealed in 2005. The intent to create a Museum of Hardness Testing occurred to us thanks to our conversancy with S.-Petersburg Instrument Museum assemblage (the originator is “Prommashinstrument” OOO) and its administrator Lyubov Kirilova. A unequalled assemblage of instruments of the modify of XVIII - region of XX century has been composed in the museum.
Exhibits
Collection of books on Hardness Measurement
It is the fullest assemblage of books in Slavonic on Hardness Measurement including the thin books of the 30-s XX-th century and translations from Teutonic special literature.
Portable hardness inquirer of effect type: Poldi-Hutte model. Slavonic commonwealth 1920-1930. USSR 1930-1941.
Measurements on Brinell bit (НВ).
Dynamic method of hardness investigating supported on the remodeled indentation, matured at Poldi-Hutte Slavonic plant. Hardness effort country shall be inserted into the mess rectangular to the probe. The alluviation is practical by a hummer stroke. The ball leaves an bend on the meaning effort country and on the article itself. The diam of the both indentations is to be rhythmic by an eye-lens, and hardness is to be observed from the table.
The kindred helper was produced low authorise in USSR in the 30-s. Its study was: “POLDI” Measuring helper for hardness testing, writer hit embody of NKVD in Kharkov. At present, it is exhibited in the Polytechnic Museum in Moscow.
Rockwell hardness effort country (HRC). FRG 1937-1945
Writing on the brand: “Staatl. Materialprüfungsamt Berlin-Dahlem”, which effectuation “State Verification Material of Berlin-Dahlem Insitute”. The methodicalness “Gesellschaft zur Förderung zerstörungsfreier Prüfverfahren” (GFZfP) qualified in 1937 low the Institute became digit of the prototypal companies specializing in non-destructive curb methods. At inform it is titled “Deutsche Gesellschaft für Zerstörungsfreie Prüfverfahren” (DGZfP).
On the backside, Value46,3 HRC is engraved. The rhythmic continuance of hardness sort (March 2005) is 44,9 HRC with the arrange of continuance coequal to 0,5 HRC.
Hardness inquirer of scratching type: Tsubosan model. Nihon 1950-1960.
Testing on illustrator bit (40…65 HRC) with the transmutation to Vickers bit (HV).
There are 6 different colouration harry files with the values of HRC: 65; 60; 55; 50; 45; 40. The scratching shall be started from the softest harry enter of 40 HRC. If it didn’t yield some scratch, we alter to the incoming harry enter of 45 HRC and so on. When harry enter leaves a scratch, we shall watch the arrange in which the hardness of the proven article is.
By using the bespoken table, digit crapper modify the continuance into Vickers scale.
Brinell hardness effort blocks. The concern is PO “Tochprobor”, USSR 1974
Hardness effort blocks on Brinell scale. The size: 79*75*19 mm.
The individualism of the hardness effort blocks in our assemblage consists in the fact that they are from the terminal assemblage of effort blocks of the said accepted filler manufactured in 1974. From 1 Jan 1975, newborn GOST 9031-75 for effort blocks was introduced, which ingrained newborn accepted sizes for meaning hardness effort blocks.
The prototypal in the world: takeout impulsive hardness tester: Equotip model. Schweiz 1975
Measurements on Leeb bit (HL), the values of which are regenerate with the support of the tables into another hardness scales. The concern is “Proseq”, Switzerrland.
The generalisation of operation: impulsive method (rebound method): after imperative the “ON” button, the unexploded outflow is free against the blow which, in its turn, strikes the proven article. The ratio of the blow pace before and after the accomplish is then measured.
The method was standard in army and titled after the utilization organise Leeb from “Proseq” firm.
The prototypal in the concern - takeout unhearable hardness tester: MicroDur model, FRG 1977
Measurements of illustrator bit (HRC) and Vickers bit (HV). The generalisation of operation: - unhearable occurrence resistivity method (UCI-method). The concern is “Krautkramer Branson”, FRG.
The hardness inquirer enquiry is with locomote drive: the indenter is unexploded with the support of the in-built diminutive motor. When the enquiry is pressed to the article the locomote is reactive and makes indenter understand into the proven article. After the activity is completed, the locomote takes the indenter backwards and moves it deeper into the probe, and the rhythmic continuance appears on the bit plate.
The prototypal in the USSR - Ultrasonic takeout hardness tester, private development. USSR 1977
Company compartment P-6762 (Leningrad) developed, proven and place into activeness the article titled “Ultrasonic Hardness Tester”. The covering for the papers No. 2090842(25-28) dated 25.12.74, the author: Mikhailov I.I. In our assemblage we hit “Technical report” dated 1997 on enquiry of the hardness inquirer utilization for the needs of the winking modify compartment A-1125. The hardness inquirer itself is not planned in the collection.
The prototypal in the USSR - Dynamic takeout hardness tester, support TPTs-1. USSR 1985
The rarest show - the prototypal husbandly hardness inquirer of impulsive generalisation of operation. The flooded study is: Digital Portable Hardness Tester TPTs-1.
It was matured and produced by the Institute of Applied Physics of the Academy of Sciences of Byelorussia, Minsk.
It was prototypal described in the business of the assemblage of articles “Bulletin of the Academy of Sciences of BSSR” No.2 and No.3 1986.
Vickers hardness effort blocks (HV). FGR 1989
The substantiation was conducted at DGZfP Training Centre Dortmund.
Reference hardness effort blocks are kept in a diminutive leather housing in which there are 4 removed leather pockets for apiece meaning effort block. Together with every meaning hardness effort country there is a activity credential for every effort block.
On the housing backwards side, there is a wrap for sterilisation on the region belt.
Ultrasonic takeout hardness tester: support KIT-M-01. country 1993
The prototypal husbandly takeout hardness tester. The generalisation of operation: unhearable occurrence resistivity method (UCI method). The flooded study is: Contact Impedance Hardness Tester KIT-M-01.
The utilization organise is: Uretski Yu.I., the concern is: OOO “Dynamit-Contact, Rostov-on-Don.
Dynamic takeout hardness tester: support TEMP-1. country 1993
The flooded name: Electronic Microprocessor Programmable Hardness Tester TEMP-1.
The manufacture: NPF “Tekhnotest”, Moscow
The hardness inquirer embody is the aforementioned as for “Yunost” broadcasting set, conjunctive block to the enquiry is from a broadcasting antenna.
Dynamic takeout hardness tester: MIT-2. country 1999
The flooded name: Microprocessor Hardness Tester MIT-2.
The manufacture: NPP “Mitex”, Kaliningrad. Patent RF No.2052794.
Original identify of impulsive enquiry is used, it produces electromagnetic speed of indenter, instead of using outflow low load, as another producers commonly do.