铝板生产厂家的金属型铸造又称硬模铸造或永久型铸造，是将熔炼好的铝合金浇入金属型中获得铸件的方法，铝合金金属型铸造铝板厂家大多采用金属型芯，也可采用砂芯或壳芯等方法，与压力铸造相比，铝合金金属型使用寿命长。
The metal mold casting of aluminum plate manufacturers, also known as hard mold casting or permanent mold casting, is a method of pouring melted aluminum alloy into the metal mold to obtain castings. Aluminum alloy metal mold casting aluminum plate manufacturers mostly use metal core, sand core or shell core. Compared with pressure casting, the service life of aluminum alloy metal mold is long.
一、铸造优点
1、 Casting advantages
1、金属型冷却速度较快，铸件组织较致密，可进行热处理强化，力学性能比砂型铸造高15%左右。

1. The cooling speed of metal mold is fast, the structure of the casting is dense, which can be strengthened by heat treatment, and the mechanical properties are about 15% higher than those of sand mold casting.
2、金属型铸造，铸件质量稳定，表面粗糙度优于砂型铸造，废品率低。
2. Metal mold casting has stable casting quality, better surface roughness than sand mold casting, and low scrap rate.
3、劳动条件好，生产率高，工人易于掌握。
3. Good working conditions, high productivity and easy for workers to master.
二、铸造缺点
2、 Casting defects
1、金属型导热系数大，充型能力差。
1. Metal mold has high thermal conductivity and poor mold filling ability.
2、金属型本身无透气性。必须采取相应措施才能有效排气。
2. The metal type itself has no air permeability. Corresponding measures must be taken to exhaust effectively.
3、金属型无退让性，易在凝固时产生裂纹和变形。
3. The metal mold has no concession and is easy to produce cracks and deformation during solidification.
铝板的固溶处理：加热使原组织中的脱溶相溶入固溶体的工艺。经过固溶处理的5052铝板，粥虽度较低、塑性较好。固溶处理的目的旨在获得过饱和固溶体，为时效作组织准备。时效处理也叫脱溶分解或称时效脱溶;固溶体自高温急冷到固态溶解度曲线以下，由于冷却速度快，沉淀产物来不及析出，形成了过饱和固溶体，然后，在较低的温度下
Solid solution treatment of aluminum plate: the process of heating to dissolve the desolved phase in the original tissue into the solid solution. The 5052 aluminum plate treated by solid solution has low porridge degree and good plasticity. The purpose of solution treatment is to obtain supersaturated solid solution and prepare the structure for aging. Aging treatment is also called desolvation decomposition or aging desolvation; The solid solution is quenched from high temperature to below the solid solubility curve. Due to the fast cooling speed, the precipitated products have no time to precipitate, forming a supersaturated solid solution, and then at a lower temperature
这种不稳定的过饱和固溶体随着时间变化发生脱溶分触随时效温度和固溶体合金成分的不同，时效脱溶过程中会析出各种弥散分布的亚稳定沉淀相，这种亚稳定沉淀相与母相共格或局部共格，使5052铝板强化。
This unstable supersaturated solid solution desolves and contacts with time. With the difference of aging temperature and solid solution alloy composition, various dispersed metastable precipitates will be precipitated in the aging desolvation process. This metastable precipitate is coherent with the parent phase or local coherent, so as to strengthen 5052 aluminum plate.
时效脱溶是一种金属的强化方法，所以也称时效强化或沉淀硬化。可分为自然时效和人工时效两种：
Aging desolvation is a metal strengthening method, so it is also called aging strengthening or precipitation hardening. It can be divided into natural aging and artificial aging:
1、自然时效是将铸件置于露天场地半年以上，便其缓缓地发生形，从而使残余应力消除或减少。
1. Natural aging is to place the casting in the open air for more than half a year, and then it will form slowly, so as to eliminate or reduce the residual stress.
2、人工时效是将铸件加热到550-650℃进行去应力退火，它比自然时效节省时间,残余应力去除较为彻底。
2. Artificial aging is to heat the casting to 550-650 ℃ for stress relief annealing. It saves time and removes residual stress more thoroughly than natural aging.
二、5052铝板的固溶时效：固溶处理和时效处理相结合的工艺。5052铝板经固溶处理后在室温或稍高于室温放置过饱和固溶体发生脱溶分解，使其硬度、强度升高，从而达到强化的目的。
2、 5052 solid solution aging of aluminum plate: a combination of solid solution treatment and aging treatment. After solution treatment, the supersaturated solid solution of 5052 aluminum plate is placed at room temperature or slightly higher than room temperature to undergo desolvation and decomposition, so as to increase its hardness and strength, so as to achieve the purpose of strengthening.