由于磨削速度過大、砂輪粒度過細(xì)或冷卻條件較差等因素的影響,引起的模具表層局部過熱,造成局部顯微組織變化,或引起表面軟化,硬度降低,或產(chǎn)生較高的殘余拉應(yīng)力等現(xiàn)象,都會(huì)降低界樁鋼模具的使用壽命選擇適當(dāng)?shù)哪ハ鞴に噮?shù)減少局部發(fā)熱,磨削后在可能的條件下進(jìn)行去應(yīng)力處理,就可有效地防止磨削裂紋的產(chǎn)生。鐵路標(biāo)志樁模具是經(jīng)過一次模壓成型的,其具有比重輕、抗腐蝕、耐老化、密封性能好,安全美觀,壽命短和隔熱保溫性能差等缺陷,深受廣大用戶依賴,廣泛應(yīng)用于石油石化 電信、電力和鐵路等領(lǐng)域。標(biāo)志樁模具因?yàn)闆]有回收價(jià)值,因此很受青睞,也叫做水泥標(biāo)志樁,標(biāo)志樁是通過用文字和圖案?jìng)鬟f警告、禁令、指示信息給施工人員以及行人的,用以管理道路交通的安全設(shè)施?!膊菔綋跬翂δ>摺炷翐跬翂δ>摺晷衲>呤褂玫母L(zhǎng)久。Due to the influence of factors such as excessive grinding speed, too fine grinding wheel particle size or poor cooling conditions, local overheating of die surface, local microstructure change, surface softening, hardness reduction, or high residual tensile stress will reduce the service life of boundary pile steel die. Select appropriate grinding process parameters to reduce local heating, After grinding, stress relief treatment under possible conditions can effectively prevent grinding cracks. The mold of railway sign pile is formed by one-time molding. It has the defects of light specific gravity, corrosion resistance, aging resistance, good sealing performance, safety and beauty, short service life and poor thermal insulation performance. It is deeply relied on by the majority of users and is widely used in petroleum, petrochemical, telecommunications, electric power, railway and other fields. The sign pile mold is very popular because it has no recycling value. It is also called cement sign pile. The sign pile is a safety facility for managing road traffic by transmitting warnings, prohibitions and instructions to constructors and pedestrians in words and patterns Grass planting retaining wall mold - concrete retaining wall mold - Hongxu mold will be used for a longer time.