優(yōu)質的鑄鐵平臺如何生產

時間：2015/12/10 14:59:18 瀏覽量：400 (1)鑄鐵平臺廠家合理確定分型面時應盡量減少分型面，以減少因分型面所形成的飛邊、表面凹凸等鑄造表面缺陷；提高坭芯的整體性，減少坭芯之間的接合數目，減少坭芯之間或坭芯與型之間的配合間隙，以提高鑄件表面凹凸度及輪廓清晰度。
(2)工藝參數的選擇，工藝參數對鑄件尺寸精度以及輪廓清晰度有較大的影響。經過多次工藝試驗，對每一工藝參數都認真選擇。比如，拔模斜度取最低限度值，并按加減厚度法選定；要充分考慮分型負數與鑄件收縮的相互補償。對于鑄件收縮率的確定，簡單件先按１1％、復雜件按0.8％做試驗，以確定每一種鑄件合適的收縮率。有的鑄件，可按試驗結果在長 、寬、高三個方向取不同的收縮率。例如，C063床身長度方面?。保?，寬度方向取0.8％ ，高度方向取0.5％。
(3)廣泛地應用最新鑄造工藝成果，提高鑄造工藝水平，以減少鑄造缺陷，特別是鑄件表面缺陷。例如，在生產中，我們應用了均衡凝固及大孔出流等九項技術成果，采用了先進的沖天爐熔煉技術，以提高鐵水溫度；在鑄型中放置纖維過濾網， 對鐵水進行過濾凈化等。
(4)模具的制造作為中小型機床廠，由于品種多而每種產品數量卻有限，不可能采用大批量生產所使用的模具及工裝。為此，根據自身狀況，采用多種形式模樣，以適應實際生產的需要。
(5)鑄件清理鑄件清理實質就是對鑄件的美容，所謂清理就是使鑄件表面質量得以提高。

(6)鑄鐵熔煉及澆注鐵水質量對鑄件表面質量影響，主要表現在兩個方面：一是鐵水中雜質的含量，特別是氧化鐵含量，它極易在鑄件表面產生夾渣或渣氣孔；二是鐵水中氣體含量，氣體含量高易使鑄件在表面或皮下產生氣孔。我們采取的主要措施是提高鐵水溫度，建立完善的沖天爐檢測系統(tǒng)，保證沖天爐處于正常狀態(tài) ?！案邷仂o置，低溫澆注”是澆注的控制準則，以降低鑄件的氣孔、縮孔及表面粘砂缺陷。提高鑄造技術水平，改善出口機床鑄件表面質量。

(1) Cast iron platform manufacturers should reduce the parting surface as far as possible to reduce casting surface defects such as flying edge and concave and convex surface caused by parting surface, improve the integrity of the core, reduce the number of joints between the core and reduce the mating gap between the core or between the core and the mould, so as to improve the surface concave and convex of the casting. Degree and contour clarity.
(2) The choice of technological parameters and technological parameters have a great influence on the dimensional accuracy and profile clarity of castings. After many process tests, each process parameter is carefully selected. For example, the minimum value of die drawing slope is chosen according to the method of adding and subtracting thickness, and the mutual compensation between negative parting number and casting shrinkage should be fully considered. For the determination of shrinkage of castings, simple castings are tested at 11% and complex castings are tested at 0.8% to determine the appropriate shrinkage of each castings. Some castings can take different shrinkage rates in three directions of length, width and height according to the test results. For example, the length of C063 bed is 1%, the width direction is 0.8%, and the height direction is 0.5%.
(3) The latest casting technology achievements are widely used to improve the casting technology level in order to reduce casting defects, especially surface defects of castings. For example, in production, we have applied nine technological achievements, such as balanced solidification and macroporous outflow, advanced cupola smelting technology to improve the temperature of molten iron, placing fiber filter mesh in casting mould, filtering and purifying molten iron, etc.
(4) Mold manufacturing as a small and medium-sized machine tool factory, because of the variety and the limited number of each product, it is impossible to adopt the mould and tools used in mass production. Therefore, according to their own conditions, we adopt a variety of forms and patterns to meet the needs of actual production.
(5) Casting cleaning is essentially cosmetology of castings, so-called cleaning is to improve the surface quality of castings.
(6) The influence of melting and pouring iron quality on surface quality of castings is mainly manifested in two aspects: one is the content of impurities in molten iron, especially iron oxide, which easily produces slag inclusion or slag blowhole on the surface of castings; the other is the content of gas in molten iron, which easily causes blowhole on the surface or under the skin of castings. The main measures we have taken are to raise the temperature of hot water and to establish a perfect cupola detection system to ensure that the cupola is in a normal state. "Static high temperature, low temperature pouring" is the control criterion of pouring, in order to reduce the porosity, shrinkage and surface bonding defects of castings. Improve casting technology level and surface quality of export machine tool castings.

Company name: botou zhuoyuan mechanical equipment manufacturing co.,LTD
Registered address: jiaohe development zone, botou city, hebei province
Fax number: 0317-8031093
Contact information: 15369812793 (WeChat with the same number)  liansheng chu
Postcode: 062151
Enterprise email:1358827475@qq.com
Account Opening Bank: Botou Branch of Bank of China
Account number: 100399943203
Agricultural bank account number: 6228481739059615270

http://zhuoyuanjixie.com