水平脫箱造型線與有箱造型線相比，擁有結(jié)構(gòu)簡單，模具制造相對(duì)簡易，占用場地較小，型砂性能要求較低，動(dòng)力負(fù)荷較小，一次性投入費(fèi)用較少，效率高，以及運(yùn)行成本較低等優(yōu)點(diǎn)，因此在鑄造生產(chǎn)中得到了廣泛的應(yīng)用。但是任何造型方式都有其自身的最佳適用范圍，在選型時(shí)要考慮以下幾點(diǎn)。
Compared with the box molding line, the horizontal off box molding line has the advantages of simple structure, relatively simple mold manufacturing, low occupancy of site, low requirement of molding sand performance, less power load, less cost of one-time investment, high efficiency and low running cost, so it has been widely used in the casting production. However, any modeling method has its own best application scope, and the following points should be considered when selecting type.
（1）設(shè)備特點(diǎn)
(1) equipment characteristics
水平脫箱造型線分垂直向下射砂和水平側(cè)面射砂兩種模式。
The horizontal stripping molding line is divided into two modes: vertical downward sand shooting and horizontal side sand shooting.
（2）鑄件特點(diǎn)
(2) characteristics of castings
根據(jù)鑄件的結(jié)構(gòu)、尺寸大小、材質(zhì)、重量等進(jìn)行工藝分析。需特別指出的是，鑄件在分型面上凹坑太深，吊砂部分型腔的緊實(shí)度不高；或模樣太高，其背面型腔的緊實(shí)度同樣也不高，會(huì)在澆注時(shí)極易產(chǎn)生砂眼等鑄造缺陷。因?yàn)楝F(xiàn)在多數(shù)水平分型脫箱造型線采用垂直向下射砂的加砂模式，大動(dòng)力液壓擠壓、壓實(shí)，水平方向起模。這種模式?jīng)Q定了上述問題很難避免。當(dāng)鑄件水平分型凸凹落差較大時(shí)，若采用水平側(cè)面射砂時(shí)，受模具凸起部分的阻力，會(huì)使射砂背面的型砂硬度不夠，導(dǎo)致掉砂或鑄型不完整。設(shè)計(jì)人員在設(shè)計(jì)模具時(shí)要設(shè)計(jì)出射砂通道，確保型砂硬度一致。具體依據(jù)鑄件的結(jié)構(gòu)、外形尺寸、落差大小選用造型線。落差太大，砂胎凸起太高或凹入太深時(shí)不宜采用側(cè)面射砂。
Process analysis is carried out according to the structure, size, material and weight of the casting. It is necessary to point out that the castings are too deep in the subsurface, and the tightness of the sling part of the cavity is not high, or the shape is too high, and the tightness of the back cavity is also not high, and it will easily produce casting defects such as the sand eye in the casting. Because most of the horizontal parting molding line adopts sand filling mode with vertical downward shooting, large power hydraulic extrusion and compaction, and horizontal lifting. This model determines that the above problems are difficult to avoid. When the horizontal profile of the casting is large, when the horizontal side is used, the resistance of the protruding part of the mold will not be enough, which causes the sand or the mold to be incomplete. When designing the mold, the designer should design sand shooting passages to ensure that the hardness of the molding sand is the same. The molding line is selected according to the structure, size and size of the casting. When the drop is too large, the sand blasting is too high or the concave is too deep.
（3）生產(chǎn)綱領(lǐng)
(3) production programme
根據(jù)生產(chǎn)任務(wù)要求確定生產(chǎn)綱領(lǐng)后，對(duì)鑄造生產(chǎn)任務(wù)進(jìn)行工藝分析是設(shè)備選型時(shí)的一個(gè)重要環(huán)節(jié)。確定一個(gè)具有代表性的鑄件對(duì)其進(jìn)行詳細(xì)的工藝分析。例如:每型設(shè)置鑄件的數(shù)量、使用砂芯的種類及數(shù)量，然后根據(jù)工藝分析確定所選用的水平分型脫箱造型線的下工位數(shù)量及效率。一般情況下，水平分型脫箱造型線有單工位、雙工位、四工位供選用。設(shè)計(jì)效率80～180型/h。一方面可避免因選擇的生產(chǎn)線效率低而造成生產(chǎn)能力不足，另一方面也要避免因選擇的生產(chǎn)線效率過高而使生產(chǎn)線的整個(gè)運(yùn)行成本增加。
According to the requirements of production tasks, the process analysis of foundry production tasks is an important part of equipment selection. A representative casting is determined to carry out detailed process analysis. For example, the number of each type of casting, the type and quantity of the sand core are used, and then the number and efficiency of the bottom position of the selected horizontal split box molding line are determined according to the process analysis. Under normal circumstances, the horizontal split stripping molding line has single station, double station and four stations for selection. Design efficiency 80~180 type /h. On the one hand, the low productivity of the selected production line can be avoided. On the other hand, the overall operation cost of the production line should be increased by avoiding the high efficiency of the selected production line.
（4）相關(guān)工部配套
(4) related work department
以水平分型脫箱造型線為服務(wù)對(duì)象，詳細(xì)計(jì)算設(shè)計(jì)砂處理工部、熔煉工部、制芯工部等,讓造型線上每一工位均需在一定時(shí)間內(nèi)保質(zhì)、保量、有節(jié)奏地進(jìn)行，使熔煉、混砂、造型、澆注相互匹配，最大發(fā)揮設(shè)備的效能。另外，在造型線上配套澆注機(jī)，可使其效率提高20%以上。
The design of sand processing department, smelting department and core work department are designed in detail, which make every station in the molding line keep quality, quantity and rhythm in a certain time, so that the melting, sand mixing, molding and pouring can match each other to maximize the efficiency of the equipment. In addition, the casting machine on the molding line can increase its efficiency by more than 20%.
