畢業(yè)論文開(kāi)關(guān)外殼注射模具設(shè)計(jì)

1、開(kāi)關(guān)外殼注射模具設(shè)計(jì)一 摘要 開(kāi)關(guān)是人們生活中經(jīng)常用到的產(chǎn)品，市場(chǎng)上的開(kāi)關(guān)種類(lèi)越來(lái)越多，這就使得生產(chǎn)商們需要花更多的心思在蓋的設(shè)計(jì)上面。開(kāi)關(guān)蓋的設(shè)計(jì)好壞間接的影響了開(kāi)關(guān)外殼的銷(xiāo)售；因此，開(kāi)關(guān)外殼的設(shè)計(jì)是否新奇獨(dú)特，美觀成了開(kāi)關(guān)外殼生產(chǎn)者所首要考慮的問(wèn)題。關(guān)鍵詞 開(kāi)關(guān)外殼 注射模具 設(shè)計(jì)switch outer covering injection mold designfirst, abstractthe switch is the people lives after the product which commonly used arrives, in the market switch

2、type are more and more many, this causes the producers to need flowered more thoughts in above the design which covers. the switch covers design quality indirect influence switch outer covering sale; therefore, switch outer covering design novel is whether unique, artisticly has become the switch ou

3、ter covering producer most important consideration question.key word switch outer covering injects the mold design二 塑件的工藝分析2.1 分析塑件使用材料的種類(lèi)及工藝特征 該塑件材料選用abs（丙烯腈丁二烯苯乙烯共聚物）。abs有良好的耐化學(xué)腐蝕及表面硬度 ，有良好的加工性和染色性能。 abs無(wú)毒、無(wú)味、呈微黃色，成型的塑件有較好的光澤。密度為1.021.05g/cm³。abs有良好的機(jī)械強(qiáng)度和一定的耐磨性、耐寒性、耐油性、耐水性、化學(xué)穩(wěn)定性和電氣性能。水、無(wú)機(jī)鹽、堿和

4、酸類(lèi)對(duì)abs幾乎無(wú)影響。abs不溶于大部分醇類(lèi)及烴類(lèi)溶劑，但與烴長(zhǎng)期接觸會(huì)軟化溶脹。abs有一定的硬度和尺寸穩(wěn)定性，易與成型加工，經(jīng)過(guò)調(diào)色可配成任何顏色。abs的缺點(diǎn)是耐熱性不高，連續(xù)工作溫度為70ºc左右，熱變形溫度為93ºc左右，且耐氣候性差，在紫外線作用下易發(fā)脆。abs在升溫時(shí)粘度增高，所以成型壓力高，故塑件上的脫模斜度宜稍大；abs易吸水，成型加工前應(yīng)進(jìn)行干燥處理；abs易產(chǎn)生熔接痕，模具設(shè)計(jì)時(shí)應(yīng)注意盡量少澆注系統(tǒng)對(duì)料流的阻力；在正常的成型條件下，壁厚、熔料溫度對(duì)收縮率影響極小。2.2 分析塑件的結(jié)構(gòu)工藝性 該塑件尺寸中等，整體結(jié)構(gòu)較簡(jiǎn)單.多數(shù)都為曲面特征。除了配合

5、尺寸要求精度較高外，其他尺寸精度要求相對(duì)較低，但表面粗糙度要求較高，再結(jié)合其材料性能，故選一般精度等級(jí)：it5級(jí)。2.3 工藝性分析 為了滿(mǎn)足制品表面光滑的要求與提高成型效率采用潛伏式澆口。該澆口的分流道位于模具的分型面上，而澆口卻斜向開(kāi)設(shè)在模具的隱蔽處。塑料熔體通過(guò)型腔的側(cè)面或推桿的端部注入型腔，因而塑件外表面不受損傷，不致因澆口痕跡而影響塑件的表面質(zhì)量與美觀效果。 塑件的工藝參數(shù)：模具溫度： 注射壓力： 保壓力： 注射時(shí)間： 保壓時(shí)間： 冷卻時(shí)間： 成型周期：三 初步確定型腔數(shù)目3.1初步確定型腔數(shù)目根據(jù)塑件的結(jié)構(gòu)及尺寸精度要求,該塑件在注射時(shí)采用一模二腔，綜合考慮澆注系統(tǒng)，模具結(jié)構(gòu)的復(fù)雜

6、程度等因素考慮以下兩種型腔排列方式。 四 注射機(jī)的選擇4.1 塑件體積的計(jì)算 根據(jù)零件的三維模型，利用三維軟件直接可查詢(xún)到塑件的體積 v=17827.92mm 澆注系統(tǒng)的體積：v2=8942mm塑件與澆注系統(tǒng)的總體積為v=26.77*2 =53.54cm 4.2計(jì)算塑件的質(zhì)量：查手冊(cè)取密度=1.05g/cm塑件體積：v=17827.92 mm塑件質(zhì)量：根據(jù)有關(guān)手冊(cè)查得：=1.05g/cm 所以，塑件的重量為：m=v×=17.83×2×1.05=37.443g 4.3按注射機(jī)的最大注射量確定型腔數(shù)目根據(jù) （4-1）得 (4-2) 注射機(jī)最大注射量的利用系數(shù)，一般取0

7、.8; 注射機(jī)最大注射量，cm或g; 澆注系統(tǒng)凝料量，cm或g； 單個(gè)塑件體積或質(zhì)量，cm或g； 4.3估算澆注系統(tǒng)的體積，其初步設(shè)定方案如下 圖4.1 澆注系統(tǒng)示意圖 10.1cm4.4 查表文獻(xiàn)4、2得選用 xs-zy-125型號(hào)注射機(jī)五 澆注系統(tǒng)的設(shè)計(jì)澆注系統(tǒng)的設(shè)計(jì)原則：澆口位置應(yīng)盡量選擇在分型面上，以便于模具加工及使用時(shí)澆口的清理；澆口位置距型腔各個(gè)部位的距離應(yīng)盡量一致，并使其流程為最短；澆口的位置應(yīng)保證塑料流入型腔時(shí)，對(duì)著型腔中寬敞、壁厚位置，以便于塑料的流入;避免塑料在流入型腔時(shí)直沖型腔壁,型芯或嵌件,使塑料能盡快的流入到型腔各部位,并避免型芯或嵌件變形;盡量避免使制件產(chǎn)生熔接痕,

8、或使其熔接痕產(chǎn)生在之間不重要的位置;澆口位置及其塑料流入方向,應(yīng)使塑料在流入型腔時(shí),能沿著型腔平行方向均勻的流入,并有利于型腔內(nèi)氣體的排出。 5.1主流道的設(shè)計(jì) 主流道是指澆注系統(tǒng)中從注射機(jī)噴嘴與模具處到分流道為止 塑料熔體 流動(dòng)通道 根據(jù)選用的xs-zy-125型號(hào)注射機(jī)的相關(guān)尺寸得 噴嘴前端孔徑：； 噴嘴前端球面半徑：； 根據(jù)模具主流道與噴嘴的關(guān)系 取主流道球面半徑：； 取主流道小端直徑：； 為了便于將凝料從主流道中取出，將主流道設(shè)計(jì)成圓錐形，起斜度為，取其值為，經(jīng)換算得主流道大端直徑為 圖5.1 主流道示意圖5.2 分流道的設(shè)計(jì) 分流道選用圓形截面：直徑d=10mm 圖5.2 分流道示意

9、圖流道表面粗糙度 5.3 分型面的選擇設(shè)計(jì)原則1） 分型面應(yīng)選在塑件外形最大輪廓處；2） 分型面的選擇應(yīng)有利于塑件的順利脫模；3） 分型面的選擇應(yīng)保證塑件的精度要求；4） 分型面的選擇應(yīng)滿(mǎn)足塑件的外觀質(zhì)量要求；5） 分型面的選擇要便于模具的加工制造；6） 分型面的選擇應(yīng)有利于排氣；7） 分型面的選擇還要考慮到型腔在分型面上投影面積的大小。其分型面如圖5.3 圖5 .3 分型面示意圖5.4 澆口的設(shè)計(jì)根據(jù)澆口的位置選擇要求，盡量縮短流動(dòng)距離，避免熔體破裂現(xiàn)象引起塑件的缺陷，澆口應(yīng)開(kāi)設(shè)在塑件壁厚處等要求澆口設(shè)計(jì)如圖5.4 圖5.4 澆口示意圖5.5 冷料穴的設(shè)計(jì) 冷料穴是澆注系統(tǒng)的結(jié)構(gòu)組成之一。冷

10、料穴的作用是容納澆注系統(tǒng)流道中料流的前鋒冷料，以免這些冷料注入型腔。這些冷料既影響熔體充填的速度，有影響成型塑件的質(zhì)量，另外還便于在該處設(shè)置主流道拉料桿的功能。注射結(jié)束模具分型時(shí)，在拉料桿的作用下，主流道凝料從定模澆口套中被拉出，最后推出機(jī)構(gòu)開(kāi)始工作，將塑件和澆注系統(tǒng)凝料一起推出模外。 其設(shè)計(jì)如下圖（z字型） 圖5.4 冷料穴示意圖5.6 排氣系統(tǒng)的設(shè)計(jì)利用配合間隙排氣是最常見(jiàn)也是最經(jīng)濟(jì)的，更具有使用性。六 確定主要零件結(jié)構(gòu)尺寸 選模架 模架的選擇，圖6.1 圖6.1 模架模型圖七 成型零部件的設(shè)計(jì)7.1 型腔、型芯工作尺寸計(jì)算abs塑料的收縮率是0.3%-0.8%平均收縮率: =（0.3%-

11、0.8%）/2=0.55% 型腔內(nèi)徑： =30.15mm型腔深度： =25.12mm型芯外徑： =28.54mm型芯深度： =24.32mm 型腔徑向尺寸（mm ）;- 塑件外形基本尺寸（mm）;-塑件平均收縮率；-塑件公差-成形零件制造公差，一般取1/41/6；-塑件內(nèi)形基本尺寸（ mm）;-型芯徑向尺寸（mm）;-型腔深度（mm）；-塑件高度（mm）-型芯高度（mm）；-塑件孔深基本尺寸（mm）；模架與型腔型芯的計(jì)算：型腔鑲件尺寸：150*256* 35型芯鑲件尺寸：150*256*36八 導(dǎo)向機(jī)構(gòu)的設(shè)計(jì) 導(dǎo)向機(jī)構(gòu)的作用：1）定位作用；2）導(dǎo)向作用；3）承受一定的側(cè)向壓力 8.1導(dǎo)柱的設(shè)計(jì)

12、 8.1.1長(zhǎng)度 導(dǎo)柱導(dǎo)向部分的長(zhǎng)度應(yīng)比凸模端面的高度高出812 cm，以免出現(xiàn)導(dǎo)柱末導(dǎo)正方向而型芯先進(jìn)入型腔的情況。 8.1.2形狀 導(dǎo)柱前端應(yīng)做成錐臺(tái)形，以使導(dǎo)柱能順利地進(jìn)入導(dǎo)向孔。 8.1.3材料 導(dǎo)柱應(yīng)具有硬而耐磨的表面和堅(jiān)韌而不易折斷的內(nèi)芯，因此多采用20鋼（經(jīng)表面滲碳淬火處理），硬度為5055hrc。 8.2導(dǎo)套的結(jié)構(gòu)設(shè)計(jì) 8.2.1材料 用與導(dǎo)柱相同的材料制造導(dǎo)套，其硬度應(yīng)略低與導(dǎo)柱硬度，這樣可以減輕磨損，一防止導(dǎo)柱或?qū)桌?8.2.2形狀 為使導(dǎo)柱順利進(jìn)入導(dǎo)套，導(dǎo)套的前端應(yīng)倒圓角。導(dǎo)向孔作成通孔，以利于排出孔內(nèi)的空氣。 8.3推出機(jī)構(gòu)的設(shè)計(jì)根據(jù)塑件的形狀特點(diǎn)， 模具型腔在定

13、模部分，型心在動(dòng)模部分。其推出機(jī)構(gòu)可采用推桿推出機(jī)構(gòu)、推件板推出機(jī)構(gòu)。由于分型面有臺(tái)階，為了便于加工，降低模具成本，我們采用推桿推出機(jī)構(gòu)，推桿推出機(jī)構(gòu)結(jié)構(gòu)簡(jiǎn)單，推出平穩(wěn)可靠，雖然推出時(shí)會(huì)在塑件上留下頂出痕跡，但塑件底部裝配后使用時(shí) 不影響外觀，設(shè)立五個(gè)推桿平衡布置，既達(dá)到了推出塑件的目的，又降低了加工成本。注：推桿推出塑件，推桿的前端應(yīng)比型腔或型心平面高出0.1-0.2mm 采用推桿推出，推桿截面為圓形，推桿推出動(dòng)作靈活可靠，推桿損壞后也便于更換。 推桿的位置選擇在脫模阻力最大的地方，塑件各處的脫模阻力相同時(shí)需均勻布置，以保證塑件推出時(shí)受力均勻，塑件推出平穩(wěn)和不變形。根據(jù)推桿本身的剛度和強(qiáng)度要

14、求，采用四根推桿推出。推桿裝入模具后，起端面還應(yīng)與型腔底面平齊或搞出型腔0.050.1cm.8.3.1推件力的計(jì)算 對(duì)于一般塑件和通孔殼形塑件，按下式計(jì)算，并確定其脫模力（q）： (8-1) 式中 -型芯或凸模被包緊部分的斷面周長(zhǎng)（cm）; -被包緊部分的深度（cm）; -由塑件收縮率產(chǎn)生的單位面積上的正壓力，一般?。?-磨擦系數(shù)，一般取； -脫模斜度； l=688mmh=4mm q=688mm*4mm*10mpa(0.1*cos0.5-sin0.5) =27.520(kn) 8.3.2 推桿的設(shè)計(jì) 推桿的強(qiáng)度計(jì)算 查塑料模設(shè)計(jì)手冊(cè)之二由式5-97得d=（） (8-2) d圓形推桿直徑cm推桿

15、長(zhǎng)度系數(shù)0.7l推桿長(zhǎng)度cmn推桿數(shù)量 e推桿材料的彈性模量n/(鋼的彈性模量e=2.1107n/) q總脫模力 取 。推桿壓力校核 查塑料模設(shè)計(jì)手冊(cè)式5-98= (8-3) 取320n/mm² < 推桿應(yīng)力合格，硬度hrc5065九 冷卻系統(tǒng)的設(shè)計(jì)冷卻水回路布置的基本原則： a) 冷卻水道應(yīng)盡量多，b) 截面尺寸應(yīng)盡量大； c) 冷卻水道離模具型腔表面的距離應(yīng)適當(dāng)； d) 適當(dāng)布置水道的出入口； e) 冷卻水道應(yīng)暢通無(wú)阻； f) 冷卻水道的布置應(yīng)避開(kāi)塑件易產(chǎn)生熔接痕的部位； 由以上原則我們可以確定冷卻水道的布置情況，以及冷卻水道的截面積本塑件在注射成型機(jī)時(shí)不要求有太高的模溫因

16、而在模具上可不設(shè)加熱系統(tǒng)。是否需要冷卻系統(tǒng)可作如下設(shè)計(jì)算計(jì)。 設(shè)定模具平均工作溫度為，用常溫的水作為模具冷卻介質(zhì)，其出口溫度為。 9.1 求塑件在硬化時(shí)每小時(shí)釋放的熱量 查表3-26得abs的單位流量為 得 = 9.2 求冷卻水的體積流量v 由式3-41得： (9-1) 查表3-27可知所需的冷卻水管直徑較小。 由上述可知，設(shè)計(jì)冷卻水道直徑為8符合要求。十、模具排氣槽的設(shè)計(jì) 當(dāng)塑料熔體充填型腔時(shí)，必須順序地排出型腔及澆注系統(tǒng)內(nèi)的空氣及塑料受熱而產(chǎn)生的氣體。如果氣體不能被順利排出，塑料會(huì)由于填充不足而出現(xiàn)氣泡、接縫或表面輪廓不清等缺陷，甚至氣體受壓而產(chǎn)生高溫，使塑料焦化。特別是對(duì)大型塑件、容器類(lèi)

17、和精密塑件，排氣槽將對(duì)它們的品質(zhì)帶來(lái)很大的影響，對(duì)于在高速成行中排氣槽的作用更為重要。我們的塑件并不是很大，而且不屬于深型腔類(lèi)零件，因此本方案設(shè)計(jì)在分型面之間、推桿預(yù)模板之間及活動(dòng)型芯與模板之間的配合間隙進(jìn)行排氣，間隙值取0.04。十一、校核10.1 整體式圓形型腔壁厚度的計(jì)算10.1.1按剛度條件計(jì)算設(shè)想用通過(guò)型腔軸線的兩平面截面取側(cè)壁，得到一個(gè)單位寬度長(zhǎng)條，該長(zhǎng)條可以看作一個(gè)一端固定、一端外伸的懸臂梁，。由于長(zhǎng)條的寬度取得很小，梁的截面可近似視為矩形。由于該梁承受均勻分布載荷，故最大饒度產(chǎn)生在外伸一端，起值為： (10-1) 式中 -型腔材料彈性模量； -梁的慣性矩，其中，； s側(cè)壁厚度。

18、 應(yīng)使，則取為一單位寬度，可求得： (10-2) 得校核條件成立 10.2整體式圓形型腔底板厚度的計(jì)算 10.2.1按剛度條件計(jì)算 整體式圓形型腔底板可視為周邊固定的圓板，在型腔內(nèi)熔體壓力作用下，最大饒度亦產(chǎn)生在底板中心，其數(shù)值為： (10-3) 應(yīng)使，則 得 校核條件成立 10.3注射機(jī)有關(guān)工藝參數(shù)的校核 1）鎖模力與注射壓力的校核 (10-4) -注射時(shí)型腔壓力 查參考文獻(xiàn)得 30mpa -塑件在分型面上的投影面積（） -澆注系統(tǒng)在分型面上的投影面積（） -注射機(jī)額定鎖模力，按gb xs-zy-125型注射機(jī)額定鎖模力為900 得 得 得 符合條件 故選 xs-zf-125注射機(jī)成立 10

19、.4模具厚度h與注射機(jī)閉和高度 注射機(jī)開(kāi)模行程應(yīng)大于模具開(kāi)模時(shí)，取出塑件（包括澆注系統(tǒng)）所需的開(kāi)模距離 即滿(mǎn)足下式 (10-5) 式中 -注射機(jī)最大開(kāi)模行程，mm； -推出距離（脫模聚居），mm； -包括澆注系統(tǒng)在內(nèi)的塑件高度，mm； sk=72+45=117 條件成立十一 結(jié)束語(yǔ) 通過(guò)這五個(gè)星期以來(lái)的畢業(yè)設(shè)計(jì)工作，不僅是對(duì)我三年來(lái)學(xué)習(xí)的總結(jié)和回顧，同時(shí)也讓我深深體會(huì)到自身存在的許多不足之處，這也是今后在社會(huì)上學(xué)習(xí)的一種動(dòng)力，我將會(huì)不斷地學(xué)習(xí)，不斷的充實(shí)自己。至此，感謝學(xué)校，感謝老師們?cè)谶@三年里對(duì)我的諄諄教導(dǎo)，讓我充實(shí)的度過(guò)了這三年的大學(xué)生活，你們的教誨將是我最寶貴的財(cái)富。最后，感謝我的指導(dǎo)老

20、師譚小紅老師對(duì)我的畢業(yè)設(shè)計(jì)的悉心指導(dǎo)和耐心幫教。十二 參考文獻(xiàn)塑料模具設(shè)計(jì)與制造 高等教育出版社 2004 齊衛(wèi)東 主編 塑料成型工藝與模具設(shè)計(jì) 機(jī)械工業(yè)出版社 2001屈華昌 主編型腔模具設(shè)計(jì)與制造 化學(xué)工業(yè)出版社 2003章飛主編模具設(shè)計(jì)指導(dǎo) 機(jī)械工業(yè)出版社 2003史鐵梁 主編 塑料模具技術(shù)手冊(cè)機(jī)械工業(yè)出版社（塑料模具技術(shù)手冊(cè)編委會(huì)編） 塑料模具設(shè)計(jì) 中國(guó)科學(xué)技術(shù)出版社 （馬金駿 編著） 塑料注射模具設(shè)計(jì)實(shí)用手冊(cè) 航空工業(yè)出版社 （宋玉恒 主編） 數(shù)字化模具制造技術(shù) 化學(xué)工業(yè)出版社 （許鶴峰 閆光榮 編著） ag an employment tribunal clai emloyment

21、 tribunals sort out disagreements between employers and employees. you may need to make a claim to an employment tribunal if: you don't agree with the disciplinary action your employer has taken against you your employer dismisses you and you think that you have been dismissed unfairly. for more

22、 informu, take advice from one of the organisations listed under further help. employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. most people find making a claim to an employment tribunal

23、challenging. if you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed under further help. ation about dismissal and unfair dismissal, see dismissal. you can make a claim to an employment tribunal, even if you

24、 haven't appealed against the disciplinary action your employer has taken against you. however, if you win your case, the tribunal may reduce any compensation awarded to you as a result of your failure to appeal. remember that in most cases you must make an application to an employment

25、 tribunal within three months of the date when the event you are complaining about happened. if your application is received after this time limit, the tribunal will not usually accept i. if you are worried about how the time limits apply to you if you are being represented by a solicitor at the tri

26、bunal, they may ask you to sign an agreement where you pay their fee out of your compensation if you win the case. this is known as a damages-based agreement. in england and wales, your solicitor can't charge you more than 35% of your compensation  if you win the case.you're clear

27、about the terms of the agreement. it might be best to get advice from an experienced adviser, for example, at a citizens advice bureau.  to find your nearest cab, including those that give advice by e-mail, click on nearest cab.for more information about making a claim to an employment tri

28、bunal, see employment tribunals.the (lack of) air up there watch m cay man islands-based webb, the head of fifa's anti-racism taskforce, is in london for the football association's 150th anniversary celebrations and will attend city's premier league match at chelsea on sunday."

29、i am going to be at the match tomorrow and i have asked to meet ya ya toure," he told bbc sport."for me it's about how he felt and i would like to speak to him first to find out what his experience was."uefa has opened disciplinary proceedings against cska for the "

30、racist behaviour of their fans" during city's 2-1 win.michel platini, president of european football's governing body, has also ordered an immediate investigation into the referee's actions.cska said they were "surprised and disappointed" by toure's complaint. in

31、a statement the russian side added: "we found no racist insults from fans of cska."age has reached the end of the beginning of a word. may be guilty in his seems to passing a lot of different life became the appearance of the same day; may be back in the past, to oneself the paranoid weird

32、 belief disillusionment, these days, my mind has been very messy, in my mind constantly. always feel oneself should go to do something, or write something. twenty years of life trajectory deeply shallow, suddenly feel something, do it.一字開(kāi)頭的年齡已經(jīng)到了尾聲?；蛟S是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個(gè)不同的日子過(guò)成了同一天的樣子；或許是追溯過(guò)去，對(duì)自己那些近乎偏執(zhí)

33、的怪異信念的醒悟，這些天以來(lái)，思緒一直很凌亂，在腦海中不斷糾纏。總覺(jué)得自己似乎應(yīng)該去做點(diǎn)什么，或者寫(xiě)點(diǎn)什么。二十年的人生軌跡深深淺淺，突然就感覺(jué)到有些事情，非做不可了。the end of our life, and can meet many things really do?而窮盡我們的一生，又能遇到多少事情是真正地非做不可？during my childhood, think lucky money and new clothes are necessary for new year, but as the advance of the age, will be more and mor

34、e found that those things are optional; junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn't really grow up, it seems is not so important; then in high school, think don'

35、t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has al

36、ready can't remember his appearance.童年時(shí)，覺(jué)得壓歲錢(qián)和新衣服是過(guò)年必備，但是隨著年齡的推進(jìn)，會(huì)越來(lái)越發(fā)現(xiàn)，那些東西根本就可有可無(wú)；初中時(shí)，以為要有一場(chǎng)暗戀才意味著真正的成長(zhǎng)，但三年過(guò)去后，自己心平氣和的寫(xiě)同學(xué)錄的時(shí)候，突然就發(fā)現(xiàn)是不是真正的成長(zhǎng)了，好像并沒(méi)有那么重要了；然后到了高中，覺(jué)得非要吐露出自己的心聲才能為高中生涯里的懵懂情愫劃上一個(gè)句點(diǎn)，但畢業(yè)晚會(huì)的時(shí)候最終還是被梗塞在了咽喉，后來(lái)再次站在他曾經(jīng)揮汗如雨的球場(chǎng)，看著他投過(guò)籃球的球框時(shí)，突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。originally, this world, can produce a

37、 chemical reaction to an event, in addition to resolutely, have to do, and time.原來(lái)，這個(gè)世界上，對(duì)某個(gè)事件能產(chǎn)生化學(xué)反應(yīng)的，除了非做不可的堅(jiān)決，還有，時(shí)間。a person's time, your ideas are always special to clear. want, want, line is clear, as if nothing could shake his. also once seemed to be determined to do something, but more of

38、ten is he backed out at last. dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. those who do, just green years oneself give oneself an arm injection, or is a self-righteous spiritual.一個(gè)人的時(shí)候，自己的想法總是特別地清晰。想要的，不想要的，界限明確，好像沒(méi)有

39、什么可以撼動(dòng)自己。也曾經(jīng)好像已經(jīng)下定了決心去做某件事，但更多的時(shí)候是最后又打起了退堂鼓。嫌惡過(guò)自己的怯懦，最終卻發(fā)現(xiàn)有很多緣分，有很多錯(cuò)過(guò)，好像冥冥之中真的已經(jīng)注定。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強(qiáng)心劑，或者說(shuō)，是自以為是的精神寄托罷了。at the moment, the sky is dark, the air is fresh factor after just rained. suddenly thought of blue plaid shirt; those were broken into various shapes of stationery; f

40、rom the corner at the beginning of deep friendship; have declared the end of the encounter that haven't start planning. those years, those days of do, finally, like youth, will end in our life.此刻，天空是陰暗的，空氣里有著剛下過(guò)雨之后的清新因子。突然想到那件藍(lán)格子襯衫；那些被折成各種各樣形狀的信紙；那段從街角深巷伊始的友誼；還有那場(chǎng)還沒(méi)有開(kāi)始就宣告了終結(jié)的邂逅計(jì)劃那些年那些天的非做不可，終于和青

41、春一樣，都將在我們的人生中謝幕。baumgartner the disappointing news: mission aborted. r plays an important role in this mission. starting at the ground, conditions have to be very calm - winds less than 2 mph, with no precipitation or humidity and limited cloud cover. the balloon, with capsule attached, will move th

42、rough the lower level of the atmosphere (the troposphere) where our day-to-day weather lives. it will climb higher than the tip of mount everest (5.5 miles/8.85 kilometers), drifting even higher than the cruising altitude of commercial airliners (5.6 miles/9.17 kilometers) and into the stratosphere.

43、 as he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence. we often close ourselves off when traumatic events happen in our lives; instead of letting the world soften us, we let it drive us deeper into ourselves. we try to deflect the hurt and pain by pretending it d

44、oesnt exist, but although we can try this all we want, in the end, we cant hide from ourselves. we need to learn to open our hearts to the potentials of life and let the world soften us.生活發(fā)生不幸時(shí)，我們常常會(huì)關(guān)上心門(mén)；世界不僅沒(méi)能慰藉我們，反倒使我們更加消沉。我們假裝一切仿佛都不曾發(fā)生，以此試圖忘卻傷痛，可就算隱藏得再好，最終也還是騙不了自己。既然如此，何不嘗試打開(kāi)心門(mén)，擁抱生活中的各種可能，讓世界感化我們

45、呢？whenever we start to let our fears and seriousness get the best of us, we should take a step back and re-evaluate our behavior. the items listed below are six ways you can open your heart more fully and completely.當(dāng)恐懼與焦慮來(lái)襲時(shí)，我們應(yīng)該退后一步，重新反思自己的言行。下面六個(gè)方法有助于你更完滿(mǎn)透徹地敞開(kāi)心扉。whenever a painful situation arise

46、s in your life, try to embrace it instead of running away or trying to mask the hurt. when the sadness strikes, take a deep breath and lean into it. when we run away from sadness thats unfolding in our lives, it gets stronger and more real. we take an emotion thats fleeting and make it a solid event

47、, instead of something that passes through us.當(dāng)生活中出現(xiàn)痛苦的事情時(shí)，別再逃跑或隱藏痛苦，試著擁抱它吧；當(dāng)悲傷來(lái)襲時(shí)，試著深呼吸，然后直面它。如果我們一味逃避生活中的悲傷，悲傷只會(huì)變得更強(qiáng)烈更真實(shí)悲傷原本只是稍縱即逝的情緒，我們卻固執(zhí)地耿耿于懷by utilizing our breath we soften our experiences. if we dam them up, our lives will stagnate, but when we keep them flowing, we allow more newness and gr

48、eater experiences to blossom.深呼吸能減緩我們的感受。屏住呼吸，生活停滯；呼出呼吸，更多新奇與經(jīng)歷又將拉開(kāi)序幕。2. embrace the uncomfortable we all know what that twinge of anxiety feels like. we know how fear feels in our bodies: the tension in our necks, the tightness in our stomachs, etc. we can practice leaning into these feelings of di

49、scomfort and let them show us where we need to go.我們都經(jīng)歷過(guò)焦灼的煎熬感，也都感受過(guò)恐懼造成的生理反應(yīng)：脖子僵硬、胃酸翻騰。其實(shí)，我們有能力面對(duì)這些痛苦的感受，從中領(lǐng)悟到出路。the initial impulse is to run away to try and suppress these feelings by not acknowledging them. when we do this, we close ourselves off to the parts of our lives that we need to experie

50、nce most. the next time you have this feeling of being truly uncomfortable, do yourself a favor and lean into the feeling. act in spite of the fear.我們的第一反應(yīng)總是逃避以為否認(rèn)不安情緒的存在就能萬(wàn)事大吉，可這也恰好妨礙了我們經(jīng)歷最需要的生活體驗(yàn)。下次感到不安時(shí)，不管有多害怕，也請(qǐng)?jiān)囍赂颐鎸?duì)吧。3. ask your heart what it wants傾聽(tīng)內(nèi)心were often confused at the next step to take, making pros and cons lists until our eyes bleed and our brains are sore. instead of always takin