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Forging round U8 – BVB Alyans, TOO | all.biz
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Forging round U8

Forging round U8

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58729.96 CNY
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Kazakhstan, Astana
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8
8 years on Allbiz
Technical characteristics
  • BrandСМЗ
  • Country of manufactureRussia
Description
Interpretation of a steel grade of U8: the letter U says that before us tool quality plain steel at which there is a carbon on average the number of 0,8%. The tool from U8 steel and its heat treatment: bench hammers produce from staly U7 and U8. Are exposed to tempering boyok and a tail. It is the best of all to conduct heating in a salt or lead bathtub. When heating the hammer in the chamber furnace at first temper boyok, and then a tail then alternately cool before full darkening of a middle part. For final cooling the hammer is transferred to oil. Release at 260-340 ° within 30-40 min. Rc hardness = 49 - 56. Check hardness on the RV device. Apply U8 or U7 steel to production of a pneumatic tool. Subject to tempering working tail part. It is necessary to avoid heating of a pneumatic tool completely therefore it is the best of all to make heating in salt or lead bathtubs. The working part is tempered in water with transfer in oil, and tail part in oil. After that the tool is released depending on the required hardness of working part, namely: chisels, cape chisels, punches, chisels and notches release at 240-270 °C endurance of 30 - 40 min. Required hardness of Rc = 56-59. Pressings, supports, it is brisk and drifts release at 270-300 ° within 30-40 min. Required hardness of Rc = 53-56. Determine hardness by a calibrated file. Cases when the pneumatic tool in the place of transition from smaller diameter on bigger during an operating time breaks, and structure of a break on depth of 5-8 mm on a circle very fine-grained are frequent, and coarse-grained is deeper. Insufficient surface finish in places of transitions is a basic reason of breakdowns (risks, scratches and so forth) . Chisels machine produce from staly U8, U9, 65H. The place of transition from thin part of a chisel to thick, and also opening walls in the hollow chisel should be tempered on small hardness. At non-compliance with it bending back of a chisel or its breakdown during an operating time is possible. Obtaining small hardness of transitional part is reached by discontinuous water hardening for continuous chisels from carbon steel or full hardening with the subsequent issue in a salina to a gray temper colors for all other chisels. The tail part is not tempered. Chisels continuous release at a temperature of 260-280 °, and hollow at 320-360 °; maintain 20-30 min. Required hardness for oploshny chisels of Rc = 56-58, and for hollow Rc = 50-52. Chisels and chisels bench and joiner's produce from same staly. Heating for hardening is made in furnaces bathtubs at the length of 60-80 mm. When heating in chamber furnaces the tool is retted at the length of 60-80 mm. The tail part is not tempered. Release at a temperature of 250-300 ° within 20-40 min. Required hardness of Rc = 53-58. The combined flat-nose pliers and nippers produce from staly U7 and U8. To heat treatment they are subjected in assembled form with the opened sponges, heat only working part - in sponge nippers at the length of 8-10 mm, and in the combined sponge flat-nose pliers at length, including cuts at the hinge. Cool in oil or kerosene at vigorous stirring. Issue is made at a temperature of 220-300 ° within 30-40 min. Rc hardness = 52-60. Hardness is controlled on the RV device or a calibrated file, and also by nipping up of a steel wire with a diameter of 2 mm. Brands produce from above-mentioned staly, temper with the subsequent issue at a temperature of 220-250 °. The shaft is released by heating in a lead bathtub to a gray temper colors. Required hardness of working part of Rc =54-58. Buy the Forging round U8 legko:1. You send zayavku2. We expose to you schet3. You pay convenient for you sposobom4. You receive the goods the Most important that you need to know about the BVB-alliance company. • Deliverable metal rolling constantly is available, and is stored "about 2000 tons" in a warehouse. • Own production of a professional flooring. • We offer a payment delay "about one month". • We do everything possible for minimization of terms of processing and delivery. • We carry out metal cutting in the size and according to your drawings. • We provide service of safe custody in the covered warehouse. • We offer the loyalty program allowing to receive discounts for purchase, processing or delivery of metal rolling. Advantages of work with nami:1. Goods available on sklade2. Official garantiya3. High quality tovarov4. Operational dostavka5. The program round U8 you can specify the loyalnostiaktualny price on the Forging at our manager. The final price of products forms, proceeding from terms of delivery: quantity, terms of payment and place of shipment. Ask the manager. This price list has exclusively information character and under no circumstances is not the public offer determined by provisions of the p. 2 of Art. 437 of the Civil code of the Russian Federation.

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Forging round U8
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