SU100511A1 - Method of pressing brittle materials - Google Patents
Method of pressing brittle materialsInfo
- Publication number
- SU100511A1 SU100511A1 SU449769A SU449769A SU100511A1 SU 100511 A1 SU100511 A1 SU 100511A1 SU 449769 A SU449769 A SU 449769A SU 449769 A SU449769 A SU 449769A SU 100511 A1 SU100511 A1 SU 100511A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pressing
- back pressure
- brittle materials
- matrix
- brittle
- Prior art date
Links
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Description
Предметом изобретени вл етс способ прессовани хрупких жаростойких и высокопрочных материалов с противодавлением в момент прессовани .The subject of the invention is a method of pressing brittle heat-resistant and high-strength materials with back pressure at the time of pressing.
Известны способы прессовани хрупких материалов в нагретом состо нии в услови х одностороннего истечени их из матрицы.Methods are known for compressing fragile materials in a heated state under conditions of their one-sided outflow from the matrix.
В описываемом способе примен етс противодавление со стороны выходной полости матрицы в момент прессовани . Противодавление дает возможность избежать по влени раст гивающих напр жений, которые могут быть причиной разрушени хрупкого материала.In the described method, the back pressure from the exit cavity of the die is applied at the time of pressing. Backpressure makes it possible to avoid the occurrence of tensile stresses, which can cause the destruction of brittle material.
На фиг. 1 показана схема прессовани с противодавлением в начале хода пресса; на фиг. 2-схема прессовани с противодавлением в конце хода пресса.FIG. Figure 1 shows the pressing scheme with back pressure at the start of the press stroke; in fig. 2-pressing scheme with back pressure at the end of the press stroke.
Способ заключаетс в том, что в процессе истечени металла через матрицу 1 со стороны ее выходной полости создаетс противодавление, которое исключает деформацию раст жени . Противодавление создаетс выталкивателем пресса или специально установленным гидравлическим цилиндром 2. Противодавление регулируетс редукционным клапаном 3.The method consists in the fact that during the outflow of the metal through the matrix 1 from the side of its exit cavity, a counter-pressure is created which eliminates the strain of the tensile strain. The back pressure is created by a press ejector or by a specially mounted hydraulic cylinder 2. The back pressure is controlled by a pressure reducing valve 3.
При прессовании усилие плунжера пресса передаетс через прессштемпель 4 наход щемус в матрице хрупкому материалу. Выход щий из матрицы материал 5 встречает противодавление РЧ со стороны штока 6 гидравлического цилиндра, которое должно быть меньше усили прессовани PI. Наличие противодавлени обеспечивает объемную схему прессовани только с деформаци ми сжати .When pressing, the force of the plunger of the press is transmitted through the press-stamp 4 located in the matrix to the brittle material. Material 5 coming out of the matrix meets the RF back pressure from the side of the rod 6 of the hydraulic cylinder, which should be less than the pressing force PI. The presence of back pressure provides a volumetric compaction scheme with compression deformations only.
Предмет изобретени Subject invention
Способ прессовани хрупких материалов в нагретом состо нии в услови х одностороннего истечени их из матрицы, отличающийс тем, что, с целью исключени раст гивающих деформаций в прессуемом материале, со стороны выходной полости матрицы примен етс противодавление .The method of pressing brittle materials in a heated state under conditions of unilateral outflow from the matrix, characterized in that, in order to eliminate tensile deformations in the pressed material, back pressure is applied from the exit cavity of the matrix.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU449769A SU100511A1 (en) | 1952-11-05 | 1952-11-05 | Method of pressing brittle materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU449769A SU100511A1 (en) | 1952-11-05 | 1952-11-05 | Method of pressing brittle materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SU100511A1 true SU100511A1 (en) | 1954-11-30 |
Family
ID=48374558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU449769A SU100511A1 (en) | 1952-11-05 | 1952-11-05 | Method of pressing brittle materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU100511A1 (en) |
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1952
- 1952-11-05 SU SU449769A patent/SU100511A1/en active
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