SU1360910A1 - Cooled cutter - Google Patents

Abstract

The invention relates to metal working, namely to incisors with internal cooling. The purpose of the invention is the spreading of technological capabilities by providing effective cooling when processing various materials by changing the steam circulation rate and conditions of its condensation. During operation, the working fluid 10 evaporates at the end 5 of the tube 4 and carries heat to the radiator 7. The radiator 7 holds the tube 4 at an angle of 0 due to pressing against the curved end of the holder 1. The steam condenses in the radiator 7 and returns to the heating zone. The o / i angle is changed, the condensation conditions and the swelling rate of the condensate film are changed. 2 hp f-ly, 2 ill. g krt Figure 1 I

Description

113609

The invention relates to metal working, namely to incisors with internal cooling.

The aim of the invention is the expansion of technological capabilities by providing effective cooling during the processing of various materials by changing the intensity

The steam circulation and the conditions of its operation to the Cessian j and at idle dentation.

Figure 1 shows the proposed cutter, a General view; figure 2 is the same, top view.

The device comprises a holder 1, a plate 2 fixed thereto with a cutting edge 3 and a heat pipe 4, the heated end 5 of which is bent. The end 5 is placed in the holder 1 parallel to the edge 3 with the possibility of a twist around its axis aa. The rest of the tube 4 is placed parallel to the side surface 6 of the holder 1. The radiator 7 is mounted on the tube 4 with the ability to move along it, for example along the thread, and interact with the end 8. The end face 8 is curved with radius R of curvature, the center of which lies on the axis a but. On the side surface 6 there is a rotation angle indicator 9.

tube 4.

The device works as follows.

go.

When processing material with different thermophysical characteristics, another angle o / tilt of the heat pipe 4 is tanned 15, for which the radiator 7 is unscrewed, the heat pipe 4 is oriented in space at the desired angle d, for example 10 °, with the aid of pointer 9. Then the ator is wrapped 7, which, in contact with the end 8 of the holder 1, fixes the tube 4. Choosing the optimum angle d the inclination of the tube 4 is made from conditions where the vapor circulation rate is higher and the temperature of the cutting plate 2 is minimal. This is achieved by selecting the rate of film draining from the condensation surface and changing the vapor-liquid separation area when the angle of heat pipe 4 changes. The optimal angle of pipe 4 for this material is marked on the indicator 9 divisions

25

thirty

In the treatment process, the working fluid 10 in the heat pipe 4 installed at an angle, for example d / 5 to the horizon, evaporates from

35

Formula I.3 gain

1. The cooled cutter containing

Plate 2 heat is carried away by steam to the holder, attached to it to the plasdiator 7, where the steam condenses and under the action of gravity the condensate returns to the heating zone. .

Due to the fact that the end 5 of the tube 4 has the ability to rotate, the inclination angle d and the nature of the Processes in the tube 4 change. The boiling process as well as the heat transfer coefficient during boiling does not depend on the inclination angle of the heat pipe 4 relative to the horizontal. However, the condensation process and the magnitude of the corresponding heat transfer coefficient depend on the orientation of the surface on which the vapor condenses, relative to the direction of gravity, namely at different angles d. By tilting the tube 4, completely different conditions determine the equilibrium thickness and the rate of flow of the film from the condensation surface.

Thus, at a constant filling volume of the heat pipe 4 with the working fluid 10 and various conditions of the cutter, the cooling intensity is changed and the temperature in the cutting zone is optimized both during the processing j and at idle

go.

When processing a material with other thermophysical characteristics, a different angle o / tilt of the heat pipe 4 is set, for which the radiator 7 is unscrewed, the heat pipe 4 is oriented in space at the desired angle d, for example 10 °, using the pointer 9. Then the radiator 7 is wrapped which, in contact with the end 8 of the holder 1, fix the tube 4. The selection of the optimum angle d of the inclination of the tube 4 is carried out from the conditions under which the steam circulation rate is higher and the temperature of the cutting plate 2 is minimal. This is achieved by selecting the film flow rate from the condensation surface and changing the vapor-liquid separation area when the angle of heat tube 4 changes. The optimum angle of inclination of tube 4 for this material is marked on the indicator 9 divisions.

Formula I.3 gain

Claims (3)

1. The cooled cutter containing five 0 five a heat pipe with a cutting edge and a heat pipe with a radiator installed in the holder with a heated end, characterized in that, in order to expand technological capabilities by providing effective cooling during processing of various materials, the heated end of the tube is bent and placed parallel to its cutting edge the axis, the rest of the tube is placed along the side surface of the holder, and the radiator is mounted to move along the tube and interaction with the end of the holder. I 2. Cutter pop. 1, characterized by the fact that the surface is tor. the holder shaft is curved h t with a radius of curvature, the center of which lies on the axis of the heated end of the tube. 3. The cutter on PP.1 and 2, I differ u and in that it is provided with an indicator of the angle of rotation of the tube relative to the side surface of the holder. 8 7 Editor G. Gerber Compiled by V. Briskina Tehred M. Khodanych Order 6181/16 Circulation 970 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 2 Proofreader A.T. sko