日本h番全彩无遮挡h工口-国产精品无码无片在线观看3d-四虎国产成人永久精品免费-广东少妇大战黑人34厘米视频-人人妻人人狠人人爽天天综合网

當(dāng)前位置:首頁(yè)-新聞資訊

鋁板廠(chǎng)家金屬型鑄造有哪些優(yōu)缺點(diǎn)?

來(lái)源:http://www.kangyanghua.com/ 發(fā)布時(shí)間:2022-03-12

鋁板生產(chǎn)廠(chǎng)家的金屬型鑄造又稱(chēng)硬模鑄造或永久型鑄造,是將熔煉好的鋁合金澆入金屬型中獲得鑄件的方法,鋁合金金屬型鑄造鋁板廠(chǎng)家大多采用金屬型芯,也可采用砂芯或殼芯等方法,與壓力鑄造相比,鋁合金金屬型使用壽命長(zhǎng)。
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、鑄造優(yōu)點(diǎn)
1、 Casting advantages
1、金屬型冷卻速度較快,鑄件組織較致密,可進(jìn)行熱處理強(qiáng)化,力學(xué)性能比砂型鑄造高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、金屬型鑄造,鑄件質(zhì)量穩(wěn)定,表面粗糙度優(yōu)于砂型鑄造,廢品率低。
2. Metal mold casting has stable casting quality, better surface roughness than sand mold casting, and low scrap rate.
3、勞動(dòng)條件好,生產(chǎn)率高,工人易于掌握。
3. Good working conditions, high productivity and easy for workers to master.
二、鑄造缺點(diǎn)
2、 Casting defects
1、金屬型導(dǎo)熱系數(shù)大,充型能力差。
1. Metal mold has high thermal conductivity and poor mold filling ability.
2、金屬型本身無(wú)透氣性。必須采取相應(yīng)措施才能有效排氣。
2. The metal type itself has no air permeability. Corresponding measures must be taken to exhaust effectively.
3、金屬型無(wú)退讓性,易在凝固時(shí)產(chǎn)生裂紋和變形。
3. The metal mold has no concession and is easy to produce cracks and deformation during solidification.
鋁板的固溶處理:加熱使原組織中的脫溶相溶入固溶體的工藝。經(jīng)過(guò)固溶處理的5052鋁板,粥雖度較低、塑性較好。固溶處理的目的旨在獲得過(guò)飽和固溶體,為時(shí)效作組織準(zhǔn)備。時(shí)效處理也叫脫溶分解或稱(chēng)時(shí)效脫溶;固溶體自高溫急冷到固態(tài)溶解度曲線(xiàn)以下,由于冷卻速度快,沉淀產(chǎn)物來(lái)不及析出,形成了過(guò)飽和固溶體,然后,在較低的溫度下
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
這種不穩(wěn)定的過(guò)飽和固溶體隨著時(shí)間變化發(fā)生脫溶分觸隨時(shí)效溫度和固溶體合金成分的不同,時(shí)效脫溶過(guò)程中會(huì)析出各種彌散分布的亞穩(wěn)定沉淀相,這種亞穩(wěn)定沉淀相與母相共格或局部共格,使5052鋁板強(qiáng)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.
時(shí)效脫溶是一種金屬的強(qiáng)化方法,所以也稱(chēng)時(shí)效強(qiáng)化或沉淀硬化。可分為自然時(shí)效和人工時(shí)效兩種:
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、自然時(shí)效是將鑄件置于露天場(chǎng)地半年以上,便其緩緩地發(fā)生形,從而使殘余應(yīng)力消除或減少。
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、人工時(shí)效是將鑄件加熱到550-650℃進(jìn)行去應(yīng)力退火,它比自然時(shí)效節(jié)省時(shí)間,殘余應(yīng)力去除較為徹底。
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鋁板的固溶時(shí)效:固溶處理和時(shí)效處理相結(jié)合的工藝。5052鋁板經(jīng)固溶處理后在室溫或稍高于室溫放置過(guò)飽和固溶體發(fā)生脫溶分解,使其硬度、強(qiáng)度升高,從而達(dá)到強(qiáng)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.

主站蜘蛛池模板: 日韩精品亚洲人成在线观看| 正在播放国产多p交换视频| 欧美一区二区三区视频在线观看| 四虎精品影院永久在线播放| 一区二区视频| 亚洲国产精品无码久久久| 孩交精品乱子片| 99麻豆久久久国产精品免费| 天堂а在线最新版在线| 欧洲不卡二卡三卡四卡免费| 少妇丰满大乳被男人揉捏视频| 亚洲午夜久久久精品影院| 西西444www无码大胆| 亚欧精品午睡沙发| 久久发布国产伦子伦精品| 国产又黄又爽又刺激的免费网址| 熟熟熟熟熟熟熟熟妇50岁| 青青青草国产线观| 97成人碰碰久久人人超级碰oo| 亚洲欧美日韩综合一区二区| 18成人片黄网站www| 亚洲av永久精品爱情岛论坛 | 亚洲欧美日韩中文字幕一区二区三区 | 老熟女毛茸茸浓毛| 国产熟女一区二区三区四区五区| 久久精品免费一区二区| 少妇人妻在线视频| 69精品人人人人| 日本大片免费观看完整视频| 午夜精品久久久久久久久久久久 | 天堂网在线.www天堂在线资源| 亚洲av成人网站在线观看| 国产精品丝袜高跟鞋| 婷婷五月综合缴情在线视频| 亚洲精品成人片在线观看精品字幕| 亚洲日韩精品无码专区网址 | 成人综合伊人五月婷久久| 成 人片 黄 色 大 片| 大地资源免费更新在线播放| 精品久久久久中文字幕日本| 精品多毛少妇人妻av免费久久|