Вплив термомеханічних режимів обробки на якісні характеристики стержня із сталі 30хгс та його технологічність

The influence of thermomechanical treatment of wire rod from 30KhGSA grade steel on its qualitative characteristics and manufacturability on a hardware distribution has been investigated. It is shown that in order to ensure a seamless process of drawing the surfacing wire, it is advisable to ensure that the metal is exposed for at least 2 days after acid scaling is removed from the wire rod surface.Исследовано влияние режимов термомеханической обработки катанки из стали марки 30ХГСА на ее качественные характеристики и технологичность на метизном переделе. Показано, что для обеспечения безобрывного процесса волочения наплавочной проволоки целесообразно обеспечить выдержку металла в течение не менее 2 суток после кислотного удаления окалины с поверхности катанки.Досліджено вплив режимів термомеханічної обробки катанки зі сталі марки 30ХГСА на її якісні характеристики та технологічність на кордовому переділі. Показано, що для забезпечення безобривного процесу волочіння наплавочной дроту доцільно забезпечити витримку металу протягом не менше 2 діб після кислотного видалення окалини з поверхні катанки

Особливості виробництва та переробки катанки підвищеної деформованості з легованих сталей зварювального призначення.

Приведены краткие результаты исследований, проведенных в условиях ОАО «Молдавский металлургический завод», по разработке научно обоснованных технологических решений, позволивших повысить качественные характеристики катанки из легированных сталей сварочного назначения, обеспечивающие высокую технологичность при переработке на метизном переделе.Наведено короткі результати досліджень, проведених в умовах ВАТ «Молдавський металургійний завод», з розробки науково обґрунтованих технологічних рішень, що дозволили підвищити якісні характеристики катанки з легованих сталей зварювального призначення, що забезпечують високу технологічність при переробці на метизному переділі

SPIN@U‐70: An Experiment to Measure the Analyzing Power An in Very‐high‐P⟂2P⟂2 p‐p Elastic Scattering at 70 GeV

The SPIN@U‐70 experiment plans to measure the one‐spin analyzing power An for 70 GeV proton‐proton elastic scattering at large P⟂2P⟂2 values of 1 to 12 (GeV/c)2. The Michigan frozen NH3 polarized proton target (Solid PPT) should later be installed in the Channel 8 extracted beam‐line of the 70 GeV U‐70 accelerator in IHEP, Protvino. The forward‐scattered protons are detected by small scintillation counters placed at about 9 m from the PPT, while the recoil‐scattered protons are detected by a 35‐m‐long focusing magnetic spectrometer, with a 12 degree vertical bend, placed at 30 degrees to the beam. A tune‐up run for testing the beam and the spectrometer, using a polyethylene target, was carried out in April 2002 at IHEP. The layout and the results of the test run are presented. © 2003 American Institute of PhysicsPeer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87680/2/538_1.pd

Antiproton-proton scattering experiments with polarization.

High Energy Physics Esperiment (hep-ex/0505054). The document describes the physics case of the PAX experiment using polarized antiprotons, which has recently been proposed for the new Facility for Antiprotons and Ions Research (FAIR) at GSI--Darmstadt. Polarized antiprotons provide access to a wealth of single-- and double--spin observables, thereby opening a new window to physics uniquely accessible at the HESR. The polarized antiprotons would be most efficiently produced by spin--filtering in a dedicated Antiproton Polarizer Ring (APR) using an internal polarized hydrogen gas target. In the proposed collider scenario of the PAX experiment, polarized protons stored in a COSY--like Cooler Storage Ring (CSR) up to momenta of 3.5 GeV/c are bombarded head--on with 15 GeV/c polarized antiprotons stored in the HESR. This asymmetric double--polarized antiproton--proton collider is ideally suited to map, e.g., the transversity distribution in the proton. The proposed detector consists of a large--angle apparatus optimized for the detection of Drell--Yan electron pair

"Measurement of the spin-dependence of p-pbar interaction at AD-ring”

Letter of Intent to the CERN SPS Comitee. An internal polarized hydrogen storage cell gas target is proposed for the AD--ring to determine for the first time the two total spin--dependent cross sections $\sigma_1$ and $\sigma_2$ at antiproton beam energies in the range from 50 to 200 MeV. The data will allow the definition of the optimum working parameters of a dedicated Antiproton Polarizer Ring (APR), which has recently been proposed by the PAX collaboration for the new Facility for Antiproton and Ion Research (FAIR) at GSI in Darmstadt, Germany. The availability of an intense beam of polarized antiprotons will provide access to a wealth of single-- and double--spin observables, thereby opening a new window to QCD transverse spin physics. The physics program proposed by the PAX collaboration includes a first measurement of the transversity distribution of the valence quarks in the proton, a test of the predicted opposite sign of the Sivers--function, related to the quark distribution inside a transversely polarized nucleon, in Drell--Yan (DY) as compared to semi--inclusive Deep Inelastic Scattering, and a first measurement of the moduli and the relative phase of the time--like electric and magnetic form factors $G_{E,M}$ of the proton

Antiproton-proton scattering experiment with polarization (update)

Upgrading to the document High Energy Physics Esperiment (hep-ex/0505054). The document describes the physics case of the PAX experiment using polarized antiprotons, which has recently been proposed for the new Facility for Antiprotons and Ions Research (FAIR) at GSI--Darmstadt. Polarized antiprotons provide access to a wealth of single-- and double--spin observables, thereby opening a new window to physics uniquely accessible at the HESR. The polarized antiprotons would be most efficiently produced by spin--filtering in a dedicated Antiproton Polarizer Ring (APR) using an internal polarized hydrogen gas target. In the proposed collider scenario of the PAX experiment, polarized protons stored in a COSY--like Cooler Storage Ring (CSR) up to momenta of 3.5 GeV/c are bombarded head--on with 15 GeV/c polarized antiprotons stored in the HESR. This asymmetric double--polarized antiproton--proton collider is ideally suited to map, e.g., the transversity distribution in the proton. The proposed detector consists of a large--angle apparatus optimized for the detection of Drell--Yan electron pair