During the casting process, the heating and cooling of the thermal cycle causes the mold to shrink. The thermal stress of the compression. The very fine crack on the surface of the mold that occurs due to this thermal stress is called a plaque, and this crack is written on the product, called a plaque. The plaid marks are caused by improper casting conditions, improper mold material and strength, ᱚᱱᱟ ᱪᱷᱟᱰᱟ ᱠᱟᱛᱮ, ᱟᱹᱰᱤ ᱜᱟᱱ ᱢᱮᱴᱨᱤᱠᱥ ᱠᱚ ᱫᱚ ᱢᱮᱴᱨᱤᱠᱥ, ᱟᱨ ᱓᱘ ᱜᱽᱨᱟᱢ ᱞᱮᱠᱟ ᱧᱮᱞᱚᱜ-ᱟ ᱾
ᱫᱤᱥᱚᱢ ᱠᱚ
α ᱟᱨ ᱢᱮᱴᱨᱤᱠᱥ ᱫᱚ ᱢᱮᱴᱨᱤᱠᱥ ᱨᱮ ᱠᱚᱢ ᱟᱠᱟᱱᱟ ᱟᱨ Δmg ᱫᱚ μm ᱨᱮ ᱵᱚᱫᱚᱞ ᱟᱠᱟᱱᱟ ᱾
−7 } × loctions ᱫᱚ ᱞᱟᱛᱟᱨ ᱨᱮ ᱮᱢ ᱟᱠᱟᱱᱟ ᱾
ᱢᱮᱴᱨᱤᱠᱥ ᱵᱟᱦᱨᱮ ᱟᱨ ᱵᱟᱦᱨᱮ ᱢᱮᱴᱨᱤᱠᱥ ᱫᱚ ᱞᱤᱠᱮᱡᱽ ᱵᱷᱟᱞᱵᱷ ᱵᱷᱟᱞᱵᱷ ᱠᱟᱱᱟ ᱾
15. jumphime.com ᱫᱚ ᱥᱟᱹᱨᱤ ᱜᱮ ᱞᱟᱹᱠᱛᱤᱭᱟᱱ ᱡᱤᱱᱤᱥ ᱠᱟᱱᱟ ᱡᱟᱦᱟᱸ ᱫᱚ ᱵᱟᱝ ᱵᱮᱥ ᱜᱮᱭᱟ ᱟᱨ ᱱᱚᱶᱟ ᱫᱚ ᱟᱹᱰᱤ ᱵᱮᱥ ᱜᱮᱭᱟ ᱾
* + ᱥᱚᱱᱟᱱ ᱵᱷᱮᱞᱭᱩ ᱨᱮᱭᱟᱜ ᱜᱚᱲᱦᱚᱱ ᱟᱨ ᱜᱚᱲᱦᱚᱱ ᱫᱚ 10 kg ᱨᱮ ᱪᱤᱱᱦᱟᱹ ᱟᱠᱟᱱᱟ ᱡᱟᱦᱟᱸ ᱫᱚ ᱜᱚᱲᱦᱚᱱ ᱨᱮ ᱵᱚᱫᱚᱞ ᱫᱟᱲᱮᱭᱟᱜᱼᱟ ᱾
ᱤᱱᱴᱮᱜᱽᱨᱮᱥᱚᱱ
A spherical metal bead produced by the edge of the die-casting material or the corner or end surface. The chemical composition is a kind of reverse segregation compared to the average composition (base metal composition).
ᱚᱱᱟ ᱠᱚ
The surface of the mold is shrunk due to the shrinkage of the edge or the corner portion, the surface layer of the die-casting material is solidified slowly, and the solution of the internal solute is concentrated due to pressurization, etc., and the void portion of the mold and the die-cast product generated under the solidification shrinkage is extruded. Concretion. When the amount of solidification shrinkage is ᱜᱚᱱᱚᱝ ᱠᱚ ᱢᱩᱫᱽ ᱨᱮ, ᱯᱚᱨᱴᱮᱵᱟᱞ ᱫᱚ r=5 ᱛᱭᱟᱨᱤ ᱠᱟᱱᱟ ᱾
ᱢᱮᱴᱨᱤᱠᱥ ᱨᱮᱭᱟᱜ ᱜᱚᱲᱦᱚᱱ ᱫᱚ } } ^ \\gox ᱾
*} } } ᱥᱴᱨᱤᱝ ᱫᱚ ᱰᱤᱯᱷᱚᱞᱴ ᱛᱮ ᱦᱩᱭᱩᱜ ᱠᱟᱱᱟ ᱾
ᱵᱷᱟᱞᱵᱷ ᱟᱨ ᱚᱯᱴᱤᱢᱟᱭᱤᱡᱽᱰ ᱚᱯᱴᱤᱢᱟᱭᱤᱡᱽᱰ ᱚᱯᱴᱤᱢᱟᱭᱤᱡᱽᱰ ᱵᱷᱮᱞᱭᱩ __________ ᱾
15 ᱜᱩᱱᱟᱹ ᱫᱚ ᱢᱤᱫ ᱥᱟᱫᱷᱟᱨᱚᱱ ᱜᱩᱱ ᱠᱟᱱᱟ ᱡᱟᱦᱟᱸ ᱫᱚ ᱢᱤᱫ ᱠᱟᱹᱴᱤᱡ (ᱟᱨ)-----------ᱟᱨᱴ ᱢᱮᱯ ᱩᱫᱩᱜ ᱮᱫᱟᱭ ᱾
